Appendix

Tec Trimix Instructor Guide Appendix

AppendixTable of Contents

Deep Stop Calculation Table – METRIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-48

Deep Stop Calculation Table – IMPERIAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-49

DSAT Tec Trimi Diver Course Key Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-5

Emergency Procedures Slate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-50

Knowledge ReviewsChapter ONE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-9Chapter TWO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-13Chapter THREE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-16Chapter FOUR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-18

Tec Diving Liability Release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-51

Tec Diving Statement of Understanding and Learning Agreement . . . . . . . . . . .A-53

Tec Trimix Diver Exam Answer Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-20

Tec Trimix Diver Exam A Answer Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-21

Tec Trimix Diver Exam B Answer Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-22

Tec Trimix Instructor Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3

Trimix Oxygen Management Table – METRIC . . . . . . . . . . . . . . . . . . . . . . . . . . .A-25

Trimix Oxygen Management Table – IMPERIAL . . . . . . . . . . . . . . . . . . . . . . . . . .A-34

Trimix Sac Conversion Factors – METRIC and IMPERIAL . . . . . . . . . . . . . . . . . . .A-43

Trimix Equivalent Narcotic Depth Table – METRIC . . . . . . . . . . . . . . . . . . . . . . . .A-44

Trimix Equivalent Narcotic Depth Table – IMPERIAL . . . . . . . . . . . . . . . . . . . . . .A-45

Trimix Maximum Depths in Metres of Seawater . . . . . . . . . . . . . . . . . . . . . . . . . .A-46

Trimix Maximum Depths in Feet of Seawater . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-47

Trimix Fill Decal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-54

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Appendix Tec Trimix Instructor Guide

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TEC TRIMIX INSTRUCTOR APPLICATION PLEASE PRINT OR TYPE

□ Check here if this is a change of address

Name_____________________________________________________________ PADI No. _____________________First Initial Last

Mailing Address __________________________________________________________________________________

City____________________________________________________ State/Province____________________________

Country__________________________________________ Zip/Postal Code _________________________________

Home Phone (______) ___________________________ Business Phone (______) ____________________________

Fax (_____) _____________________________ Email Address ____________________________________________

Sex: □ M □ F Birthdate _____________________ Occupation _____________________________________ Day/Month/Year

Requirements: To apply for the DSAT Tec Trimix Instructor rating you must meet the following requirements.Refer to the DSAT Tec Trimix Diver Instructor Guide for specifics. Direct questions on qualifying certifications tothe PADI Training and Quality Management Department.

□ PADI Master Scuba Diver Trainer (or higher) Rating □ DSAT Tec Trimix Diver (or qualifying certification*)

□ DSAT Tec Deep Instructor □ I am at least 21 years old.* If submitting qualifying certification from another training organization, please be sure to attach photocopies of the certification.

PAYMENT METHODApplication Fee____________________________ � Check No._________________________ Check for PADI Americas only – Must be payable to PADI in US dollars, and drawn on a US bank.

� American Express � Discover Card � MasterCard � VISA � JCB

Switch/Solo Issue No. ___________________________ (Not Valid in USA)

Expiration Date ______________________ (Valid from Date – UK Only) __________________

Card No. ________________ ________________ ________________ ________________

Cardholder Name ________________________________________________________________Please Print

Authorized Signature _______________________________________________________

Cardholder Address _______________________________________________________(If different from applicant.)

_______________________________________________________________________________________________________________________

MAIL TO YOUR PADI OFFICEAttn: DSAT Tec Trimix Instructor CertificationSee current price list for mailing information. Please be sure to enclose all required materials (see checklist).

Rec’d ________________________ Ent ______________________

Shp’d________________________

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Tape/Attach a4.5cm x 5.7cm1.75” x 2.25”

Head-and-Shoulders Photo

PRINT NAME ONBACK OF PHOTO

Coin machine photos OKDo not send old cards

NO DARK GLASSES

CHECKLIST□ Application filled-in completely□ Requirements completed□ Successfully completed Tec Trimix

Standards and Theory/Practical Exams□ Verification of logged dives□ Verification of course assistance□ Enclosed processing fee (see current price list)

□ Applicant and Instructor signaturesOFFICE USE ONLY

Reviewer _______________________ Certification Date _________________

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Applicant Acknowledgement

I certify that the information contained here is true and correct to the best of my knowledge and understand that this certification is subject to approval by PADI.

Applicant Signature_______________________________________________ Date___________________Signature Day/Month/Year

Instructor Signatures: The verifying Instructors must be a DSAT Tec Trimix Instructor or a PADI Instructorwith a qualifying certification.

Logged Dive Verification: I have verified that the applicant has logged at least 350 dives with at least 50 decompres-sion dives deeper than 40 metres/130 feet, not including those required for certification as a technical diver.

Verifying Instructor _____________________________________ PADI No. _______________ Date ___________________Signature Day/Month/Year

Logged Trimix Diver Verification: I have verified that the applicant has logged at least 30 dives deeper than 40metres/130 feet using trimix as the bottom gas, with at least 10 of these dives deeper than 50 metres/165 feet using trimixwith less than 21 percent oxygen.


Course Assistance Verification: I have verified that the applicant has assisted with at least one DSAT Tec Trimix Divercourse.* If applicant has a qualifying certification as a trimix instructor with another organization, having taught or assistedwith one of those courses meets this requirement. (Contact your PADI office for information about qualifying certificationsand proper documentation.)


Tec Trimix Instructor Exams: I have verified that the applicant has successfully completed the Tec Trimix InstructorStandards Exam and Tec Trimix Instructor Theory and Practical Application Exam.


If Applicable:

Dive Center/Resort Name ____________________________________ Store No. ___________ Phone (_____)___________

*When meeting this requirement by qualifying certification enclose a copy of your trimix instructor certification and contact your local PADI Office regarding any additional required documents.


DSAT Tec Trimix Diver Course

Key StandardsMinimum Instructor Rating, All Dives:Renewed PADI Instructor with Tec Trimix Instructor rating.

Assessment DiveRatios: 6 students to 1 instructor, with 2 more students permitted with a certifiedassistant to a maximum of 8.

Minimum Certified Assistant Qualifications: Renewed PADI Divemaster or higher levelPADI Member who is a certified PADI Enriched Air Diver and certified as a DSATTec Deep Diver or a qualifying same level certification from another trainingorganization. 18 years or older.

Minimum Depth: Water in which it is too deep to stand

Maximum Depth: 18 metres/60 feet

Bottom Gas: Air/enriched air

Note that the Assessment Dive is optional for certi-

fied Tec Deep Divers who have made a technical

decompression dive deeper than 40 metres/130 feet

in the previous six months. It is required for student

divers entering the Tec Trimix Diver course with a

qualifying prerequisite certification from another

training organization.

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Training Dive OneRatios: 6 students to 1 instructor, with 2 more students permitted with a certified assistant to a maximum of 8.

Minimum Certified Assistant Qualifications: Renewed PADI Divemaster or higher levelPADI Member who is a certified PADI Enriched Air Diver and certified as a DSAT TecDeep Diver or a qualifying same level certification from another training organiza-tion. 18 years or older.

Minimum Depth: Water in which it is too deep to stand



Training Dive TwoRatios: 2 students to 1 instructor, with 1 more student permitted with a certified assistant to a maximum of 3.

Minimum Certified Assistant Qualifications: Renewed PADI Divemaster or higher levelPADI Member who is a certified PADI Enriched Air Diver and certified as a DSAT TecTrimix Diver or a qualifying full trimix diver from another training organization. Theindividual must have made at least 20 technical decompression dives to 40metres/130 feet or deeper, beyond those required for certification. 18 years or older.

Minimum Depth: 27 metres/90 feet



Note that Training Dive Two is optional for students certified as DSAT Tec Deep Divers who

were certified in the previous six months or who have logged at least one technical decom-

pression dive requiring a decompression cylinder to 40 metres/130 feet or deeper in the previ-

ous six months. It is required for student divers entering the Tec Trimix Diver course with a

qualifying prerequisite certification from another training organization.

Training Dive ThreeRatios: 2 students to 1 instructor, with 1 more student permittedwith a certified assistant to a maximum of 3.

Minimum Certified Assistant Qualifications: Renewed PADIDivemaster or higher level PADI Member who is a certifiedPADI Enriched Air Diver and certified as a DSAT Tec TrimixDiver or a qualifying full trimix diver from another trainingorganization. The individual must have made at least 20 tech-nical decompression dives to 40 metres/130 feet or deeper,beyond those required for certification. 18 years or older.



Bottom Gas: Normoxic trimix

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Training Dive FourRatios: 2 students to 1 instructor, with 1 more student permitted with a certifiedassistant to a maximum of 3.

Minimum Certified Assistant Qualifications: Renewed PADI Divemaster or higher levelPADI Member who is a certified PADI Enriched Air Diver and certified as a DSAT TecTrimix Diver or a qualifying full trimix diver from another training organization.The individual must have made at least 250 dives, with at least 40 technical decom-pression dives deeper than 40 metres/130 feet of which at least 20 are trimix decom-pression dives, beyond those required for certification. The individual must alsohave experience diving with trimix to the actual depth of each training dive. 18years or older.



Bottom Gas: Normoxic trimix

Note that Training Dive Four is optional for students certified as DSAT Tec Deep Divers. It

is required for student divers entering the Tec Trimix Diver course with a qualifying prereq-

uisite certification from another training organization.

Training Dive FiveRatios: 2 students to 1 instructor, with 1 more student permitted with a certified assistant to a maximum of 3.

Minimum Certified Assistant Qualifications: Renewed PADIDivemaster or higher level PADI Member who is a certi-fied PADI Enriched Air Diver and certified as a DSAT TecTrimix Diver or a qualifying full trimix diver from anoth-er training organization. The individual must have madeat least 250 dives, with at least 40 technical decompres-sion dives deeper than 40 metres/130 feet of which atleast 20 are trimix decompression dives, beyond thoserequired for certification. The individual must also haveexperience diving with trimix to the actual depth of each training dive. 18 years or older.



Bottom Gas: TMx 16 to 21 percent oxygen

Training Dive SixRatios: 2 students to 1 instructor, with 1 more student permitted with a certifiedassistant to a maximum of 3.

Minimum Certified Assistant Qualifications: Renewed PADI Divemaster or higher levelPADI Member who is a certified PADI Enriched Air Diver and certified as a DSAT TecTrimix Diver or a qualifying full trimix diver from another training organization.

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The individual must have made at least 250 dives, with at least 40 technical decom-pression dives deeper than 40 metres/130 feet of which at least 20 are trimix decom-pression dives, beyond those required for certification. The individual must also haveexperience diving with trimix to the actual depth of each training dive. 18 years orolder.



Bottom Gas: TMx 16 to 21 percent oxygen, END 40 metres/130 feet or less

Training Dive SevenRatios: 2 students to 1 instructor, with 1 more student permitted with a certified assistant to a maximum of 3.

Minimum Certified Assistant Qualifications: Renewed PADI Divemaster or higher levelPADI Member who is a certified PADI Enriched Air Diver and certified as a DSAT TecTrimix Diver or a qualifying full trimix diver from another training organization. Theindividual must have made at least 250 dives, with at least 40 technical decompres-sion dives deeper than 40 metres/130 feet of which at least 20 are trimix decompres-sion dives, beyond those required for certification. The individual must also haveexperience diving with trimix to theactual depth of each training dive. 18 years or older.



Bottom Gas:TMx 16 to 21 percent oxygen,END 40 metres/130 feet or less

Training Dive EightRatios: 2 students to 1 instructor, with 1more student permitted with a certifiedassistant to a maximum of 3.

Minimum Certified Assistant Qualifications: Renewed PADI Divemaster or higher levelPADI Member who is a certified PADI Enriched Air Diver and certified as a DSAT TecTrimix Diver or a qualifying full trimix diver from another training organization. Theindividual must have made at least 250 dives, with at least 40 technical decompres-sion dives deeper than 40 metres/130 feet of which at least 20 are trimix decompres-sion dives, beyond those required for certification. The individual must also haveexperience diving with trimix to the actual depth of each training dive. 18 years orolder.



Bottom Gas: TMx 16 to 21 percent oxygen, END 40 metres/130 feet or less

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Knowledge Review –

Chapter ONEPlease complete this review, and remove it from the manual to hand in to your instructor. If

there’s something you don’t understand, review the related material. If you still don’t under-

stand, be sure to have your instructor explain it to you.

1. Is a gas blend of 19 percent oxygen, 33 percent helium and 48 percent nitro-

gen a trimix? If so, is it a normoxic trimix, and how would you write the

abbreviation for it?

Yes it is trimix. It is not normoxic trimix.

You would abbreviate it TMx 19/33.

2. What are three benefits and three drawbacks of diving with trimix?

Benefits

1. Reduced narcosis

2. Reduced oxygen exposure

3. Reduced breathing resistance

Drawbacks

1. Expense

2. Longer Deco times

3. More complex logistics and planning

3. Below what depth is trimix the broad community standard for all diving?

Below what depth for overhead environments or complex environments? To

what depth is the typical range for new, beginning trimix divers, assuming

experience at that depth during training?

Below 50 metres/165 feet trimix is the broad community standard

for all diving. Below 40 metres/130 feet for overhead or complex

environments. To 75 metres/245 feet is the range for new, begin-

ning trimix divers.

4. Trimix can be made several ways. Describe how trimix is made by partial pres-

sure blending with enriched air.

The blender adds premixed enriched air to a cylinder with helium to

produce the desired trimix.

5. How do you analyze trimix? Is a helium analyzer mandatory? How might a

helium analyzer offset the cost of investing in one?

You analyze trimix like EANx, with an oxygen analyzer to within 1% of

desired blend. Helium analyzer is not mandatory. Helium analyzers

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make it possible to blend up partially filled trimix cylinders, which

can offset helium costs over time.

6. What information should appear on all cylinders used in a trimix dive?

Labels and marking identifying the gas, the analyzed blend, the

diver’s name and the blend’s maximum depth.

7. Describe two ways you can carry four stage/deco cylinders on a trimix dive.

You can carry all cylinders on the left, two stacked and two trailed.

You can carry on the right and left, high oxygen cylinders right and

low oxygen left. The cylinders may be worn stacked, or one worn

each side and the other two trailed.

8. Explain the two problems with using trimix in a dry suit. How do you avoid

these?

Helium conducts heat rapidly so you will get cold. Isobaric counter-

diffusion is possible when you’re breathing a heavy gas surrounded

by a light gas (helium). You avoid both by using a separate inflation

system, ideally with argon.

9. What is the general recommendation regarding how deep you take a cylin-

der, and what is the issue with this recommendation in trimix diving?

The recommendation is to never take a cylinder deeper than you

can breathe it. In trimix diving, if you lose your deco cylinders, you

won’t be able to deco adequately, so the priority is to not lose them

by wearing them the entire dive if necessary.

10. Describe the procedures for gas switches with the two ways you can carry four

stage/deco cylinders on a trimix dive?

You always use NO TOX procedures. For all left, you always

breathe cylinder on top. At switch, trail. You can move cylinders up

under one in use, or wear one and trail three. For right, left, you

breathe top then bottom on left and then top then bottom on right.

It’s common to trail top cylinder after finishing with it.

11. How precise should a decompression stop be? Why is this important on a

trimix dive?

You want to stay within .6 metres/2 feet of stop depth or better. It’s

important because helium’s rapid diffusion makes it less tolerant of

deco stop errors.

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12. List five reasons why the use of desktop decompression software is standard

practice in trimix diving.

1. Theoretically there are 100s of possible mixes.

2. It simplifies gas use calculations.

3. You can customize deep stops or use Tmx for deco.

4. It easily generates contingency tables.

5. You need it even with a multigas dive computer since dive

computers do not calculate gas consumption prior to the dive.

13. Name the two basic categories of decompression models found in desktop

deco software and list the basic attributes that distinguish them.

Neo-Haldanean: assumes no bubbles. Tends to bring divers up as

shallow as possible quickly. Lots of field data and testsing.

Bubble models: assumes bubbles form and tries to prevent them.

More stops beginning deeper,but often shorter over all deco.

Relatively little field data and testing.

14. METRIC You’re planning a dive to 57 metres for 30 minutes usingTMx21/35. Using deco software and inserting deep stops, you plan to decom-press at 40 metres, 30 metres, 27 metres and 24 metres for 1 minute eachusing bottom mix, 21 metres for 1 minute, 18 metres for 2 minutes, 15 metresfor 4 minutes, 12 metres for 6 minutes and 9 metres for 8 minutes usingEANx50, and 6 metres for 5 minutes and 5 metres for 29 minutes using pureoxygen. Your ascent rate is 10 mpm. Your working SAC rate is 18 lpm andyour deco SAC rate is 16 lpm. Using the tables in the appendix of this and theTec Deep Diver Manual: How much volume of each gas do you need, includinga 1/3rd reserve? What is your oxygen exposure for the dive? Assuming you’rewearing high pressure double 12 litre cylinders filled to 270 bar, what is yourturn pressure using the Back Gas Turn Pressure formula?

Dpth Tme SAC CnFct Vol. Gas PO2 OTU/mins OTUs CNS/min CNS%57 30 18 6.7 3618 TMx21/35 1.41 1.64 49.2 .83 24.9

48.5a 2 18 6.0 216 TMx21/35 1.28 1.45 2.9 .55 1.140 1 16 5.2 83.2 TMx21/35 1.09 1.15 1.15 .42 .4235a 1 18 4.6 82.8 TMx21/35 .97 .94 .94 .33 .3330 1 16 4.0 64 TMx21/35 .84 .73 .73 .28 .2827 1 16 3.7 59.2 TMx21/35 .78 .61 .61 .22 .2224 1(+1) 16 3.4 108.8 TMx21/35 .71 .49 .98 .22 .4421 1 16 3.1 49.6 EANx50 1.55 1.85 1.85 2.22 2.2218 2 16 2.8 89.6 EANx50 1.4 1.63 3.26 .67 1.3415 4 (+1) 16 2.5 200 EANx50 1.25 1.4 7 .55 2.7512 6 16 2.2 211.2 EANx50 1.1 1.16 6.96 .42 2.529 8 16 1.9 243.2 EANx50 .95 .92 7.36 .33 2.646 5 (+1) 16 1.6 153.6 oxygen 1.6 1.92 11.52 2.22 13.325 29 16 1.5 696 oxygen 1.5 1.78 51.62 .83 24.07

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TMx21/35: 6345 litres required (4232 + 2116 reserve)

EANx50 : 1190 litres required (793 + 397 reserve)

Oxygen: 1274 litres required (849 + 425 reserve)

OTUs: 146.08

CNS: 76.55%

Turn Pressure = 120 bar (119.25)

14. IMPERIAL You’re planning a dive to 185 feet for 30 minutes usingTMx21/35. Using deco software and inserting deep stops, you plan to decom-press at 130 feet, 100 feet, 90 feet and 80 feet for 1 minute each using bottommix, 70 feet for 1 minute, 60 feet for 2 minutes, 50 feet for 4 minutes, 40 feetfor 6 minutes and 30 feet for 8 minutes using EANx50, and 20 feet for 5 min-utes and 15 feet for 29 minutes using pure oxygen.Your ascent rate is 30 fpm.Your working SAC rate is .75 cfm and your deco SAC rate is .55 cfm. Using thetables in the appendix of this and the Tec Deep Diver Manual: How much vol-ume of each gas do you need, including a 1/3rd reserve? What is your oxygenexposure for the dive? Assuming you’re wearing double 120 cf cylinders,working pressure 2400 psi filled to 2700 psi, what is your turn pressure usingthe Back Gas Turn Pressure formula?

Dpth Tme SAC CnFct Vol. Gas PO2 OTU/mins OTUs CNS/min CNS%185 30 .75 6.8 153 TMx21/35 1.42 1.66 49.8 .83 24.9

158(a) 2 .75 5.8 8.7 TMx21/35 1.23 1.37 2.74 .55 1.1130 1 .55 4.9 2.7 TMx21/35 1.04 1.06 1.06 .42 .42

115 (a) 1 .75 4.6 3.5 TMx21/35 .97 .96 .96 .33 .33100 1 .55 4.0 2.2 TMx21/35 .85 .74 .74 .28 .2890 1 .55 3.7 2.0 TMx21/35 .78 .62 .62 .22 .2280 1(+1) .55 3.4 3.7 TMx21/35 .72 .5 1.0 .22 .4470 1 .55 3.1 1.7 EANx50 1.56 1.87 1.87 2.22 2.2260 2 .55 2.8 3.1 EANx50 1.41 1.64 3.28 .83 1.6650 4 (+1) .55 2.5 6.9 EANx50 1.26 1.41 7.05 .55 2.7540 6 .55 2.2 7.3 EANx50 1.11 1.17 7.02 .48 2.8830 8 .55 1.9 8.4 EANx50 .95 .92 7.36 .33 2.6420 5 (+1) .55 1.6 5.3 oxygen 1.61 1.93 11.58 2.22 13.3215 29 .55 1.5 23.9 oxygen 1.45 1.71 49.59 .83 24.07

TMx21/35: 264 cf needed (176 + 88)

EANx50: 41 cf needed (27 + 14)

Oxygen: 44 cf needed (29 + 15)

OTUs: 144.67

CNS: 77.23%

Turn Pressure = 1170 psi

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(Note: Minor differences due to

rounding are acceptable.)

(Note: Minor differences due to

rounding are acceptable.)


15. List four benefits of team diving and how each relates to trimix diving.

1. Higher likelihood of mission success

2. Preparedness and resources for handling emergencies

3. Provides “backup brain”

4. Camaraderie from facing a challgenge

16. Explain how trimix makes it even more important and beneficial for team

members to use compatible gases.

Compatible gases make it easier to handle emergencies, plus helps

keep the team together. Makes “back up brain” better because

everyone switches together and dives the same schedule.

17. List what a Good Divers Main Objective Is To Live stands for, and one aspect

of each step that relates to planning a trimix dive.

[Answers may vary. See text for summary.]


Chapter TWOPlease complete this review, and remove it from the manual to hand in to your instructor. If

there’s something you don’t understand, review the related material. If you still don’t

understand, be sure to have your instructor explain it to you.

1. What is the primary advantage of using a fullface mask for trimix diving?

What two primary considerations do you have in using a fullface mask for

trimix diving?

The primary advantage is that it reduces your risk of drowning if

you have a CNS convulsion. The two primary considerations are

gas switches and gas sharing while wearing the mask.

2. How do you plan dives with a multigas trimix computer? How do you back

one up?

You plan multigas trimix computer dives with desktop deco software.

You back up the computer with either a second multigas trimix com-

puter, or with generated tables, a depth gauge and timer.

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3. What are the two primary advantages and four disadvantages of helium as a

dive gas?

Advantages

1. Doesn’t cause narcosis

2. Less breathing effort due to lower density

Disadvantages

1. Longer dives than comparable air/EANx dives

2. Less forgiving of decompression errors

3. Isobaric counterdiffusion is a theoretical concern

4. Generally inappropriate as a dry suit gas

4. How can putting trimix in your dry suit cause decompression problems?

Trimix in your dry suit can cause DCS by isobaric counterdiffusion

of helium through your skin when you’re breathing a denser gas.

5. What is an END? Using the appropriate tables in the appendix, what is the

END for 73 metres/240 feet if you’re diving with TMx18/33?

END is Equivalent Narcotic Depth. For a given depth and trimix, it is

the depth you would expect the same narcosis with air. Using the

END table, the END for 73 metres is 47 metres; for 240 feet it is

150 feet.

6. What are four considerations in choosing a trimix? What would the “ideal”

trimix be for 73 metres/240 feet be?

1. Narcosis

2. Oxygen exposure

3. Decompression issues

4. Logistics

Using the tables, the ideal trimix for 73 metres is TMx 16/41. For

240 feet it is TMX 16/41.

7. What is a hypoxic trimix? What is a travel gas? When do you need a travel

gas?

A hypoxic trimix is trimix with less than 21% oxygen. A travel gas is

a gas you breathe to get to the minimum useable depth for a hypox-

ic trimix . You need it with a trimxi with less than 16% oxygen, or

less than 18% if at altitude or expecting exertion at the surface.

8. What is a deep stop? What are three ways to determine deep stops using

desktop deco software, and two ways using a multigas trimix computer?

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A deep stop is a stop for 1 to 5 minutes between the bottom and the

first stop predicted by a neo Haldanean model.

Desktop deco software

1. Automatic generation by software

2. Use a bubble dynamics model

3. Calculate stops manually and enter as waypoints

Multigas trimix computer

1. Calculate in your head during ascent

2. Use the Deep Stop Calculation Table slate

9. As a general rule, which gas should you use at your first deep stop? Why.

As a general rule, you should use your back (bottom) gas at the

first deep stop to give yourself an oxygen exposure reduction after

the high PO2 at depth.

10. What’s an air break? How often should you do them?

An air break is a break to low oxygen gas to reduce the risk of CNS

toxicity. You should do them at least every 20 to 25 minutes for five

minutes, though every 10 to 12 minutes for 2 to 5 minutes has

some theoretical advantages.

11. What’s the theoretical benefit of having a small amount of helium in your deco

gas?

A small amount of helium in the deco gas may slow helium off gas

slightly to reduce potential bubble formation.

12. What’s the optimum way to ascend when trimix diving?

Ascend slowly and gradually, with a momentary pause or stop at

each 3 metres/10 feet until reaching your deco stops. Don’t skip

deco stops even if your schedule lets you . If it does, stop for one

minute at each 3 metres/10 foot interval. between the required stops.

13. Where do you wear travel gas when using it? What’s the procedure for begin-

ning a dive on travel gas?

You normally wear travel gas on the left. It is on top if wearing more

than one cylinder on that side. Travel gas breathing starts at the

surface. Teammates confirm that all are breathing travel gas, then

descend together. At the planned determined depth, the team NO

TOX switches together to back gas. This may be done with the

descent check or when staging deco cylinders.

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14. What are your options if you lose your decompression gases on a trimix dive?

Your options are to get support divers to bring some down to you, if

available. If your teammates have theirs, you may be able to

decompress with theirs after they’re done. Otherwise decompress

as long and as best you can with your back gas; however, you’re at

high risk of DCS.

15. How do you handle a failure with your multigas trimix computer if you’re

using a backup depth gauge, timer and tables, and the failure occurs in the

middle of your decompression?

Find the schedule for your bottom depth and time and then the time

for your present stop. Complete the time for that stop as shown on

the table and follow the table’s schedule for the rest of the decom-

pression.

16. Why are support divers especially beneficial on a trimix dive? What are the

characteristics of an effective support diver?

The added complexity of a trimix dive makes support divers espe-

cially beneficial. An effective support diver is qualified for the sup-

port dive and depths, is a good communicator, is a good problem

solver and has patience.

17. What four responsibilities do you have in the dive community due to your

role and position as a Tec Trimix Diver?

1. Be a role model

2. Show humility

3. Bring up less experienced divers

4. Stay current

A-16 padi.com



Chapter THREEPlease complete this review, and remove it from the manual to hand in to your instructor. If



1. You make a dive to 55 metres/180 feet for 20 minutes on TMx18/50. Not

counting deep stops, your deco schedule is 21 metres/70 feet for 1 minute, 18

metres/60 feet for 2, 15 metres/50 feet for 2, 12 metres/40 feet for 4, and 9

metres/30 feet for 7 using TMx50/10. Your final stop is 6 metres/20 feet for 24

minutes on oxygen. At the 18 metre/60 foot stop, your dry suit valve sticks

momentarily, causing you to rise to nearly 6 metres/20 feet as you disconnect

it, regain control and redescend to 18 metres/60 feet in less than 2 minutes.

What should you do?

Complete the 18 metre/60 foot stop and all stops up to and includ-

ing the 12 metre/40 foot stop as scheduled.. Extend the 9 metre/30

foot stop to 10.5 minutes and the 6 metre/20 foot stop to 36 min-

utes. Stay at 6 metres/20 feet as long as reasonably possible past

36 minutes.

2. What should you do if you experience DCS symptoms underwater?

Signal your teammates that you think you’re bent. If recompression

is not immediately available, complete decompression. Extend 6

metre/20 foot stop (ideally on oxygen) while your teammates com-

plete decompression, surface and prepare for transportation to

medical care. Stay on oxygen after surfacing and let your team-

mates deal with your gear, etc. Continue first aid for DCS until

reaching medical care.

3. What should you do if you experience CNS oxygen toxicity symptoms during

a trimix dive?

Immediately switch to low oxygen gas. Ascend if possible. Stay off

high oxygen gas until at least 15 minutes past the last symptoms.

If possible without affecting unreasonably affecting decompression,

stay on lower oxygen gas and limit oxygen exposure. Abort the dive

if possible.

4. Describe the level of streamlining and technique skill expected of a Tec

Trimix Diver.

padi.com A-17


Everything should be tucked, stowed and tight with nothing dangling

or protruding. Your buoyancy control should be precise, and you

should swim without stirring up silt, staying off the bottom.

5. Why does shallow breathing lead to rapid breathing and high gas consump-

tion? What are two ways that carbon dioxide buildup can affect you on a trim-

ix dive?

Shallow breathing is less efficient, so carbon dioxide builds up lead-

ing to rapid breathing. This consumes gas fast because of the

depth. High carbon dioxide can cause high gas consumption, and it

can cause narcosis to increase.

6. What are four differences of diving with trimix versus diving without it with

respect to mission planning?

The four differences of diving with trimix than can affect a mission

are decompression duration, depth, narcosis reduction and that

trimix is easier to breathe.

7. What is the primary mission of any dive?

The primary mission of any dive is for the team to return from the

dive unhurt.


Chapter FOURPlease complete this review, and remove it from the manual to hand in to your instructor. If



1. What are the limits of trimix diving? Why?

There are no limits because technical diving is still being explored.

2. What are the limits of your training in the Tec Trimix Diver course?

To 75 metres/245 feet or the deepest depth reached in the course,

whichever is less, in conditions comparable to those in which I

trained.

A-18 padi.com


3. How do you extend your limits as a Tec Trimix Diver?

Gradually, with dives progressively deeper. Master new conditions

shallow before going deeper. Team up with more experienced divers.

4. What are your responsibilities as a Tec Trimix Diver with respect to the state

of the art in trimix diving in particular, and technical diving in general?

It’s my responsibility to stay informed about the state of the art in

tec diving. It’s my responsibility to stop tec diving if the risk

becomes intolerable or my physical condition makes the risk

unacceptable. It’s my responsibility to keep my skills and knowledge

fresh, and to brush up after inactivity before resuming.

5. What’s the most important personal quality you can have with respect to

extending your limits?

Patience.

6. What is “crush depth”? What makes it an issue for trimix diving?

Crush depth is the depth at which equipment can fail due to the

pressure. It’s an issue in trimix diving because some equipment was

designed for recreational diving, which is much shallower.

7. What’s the safest course with respect to avoiding crush depth?

Stay within the manufacturer’s rated depth for the equipment.

8. What risks do you face by exceeding equipment’s depth rating?

Catastrophic failure, seal failure and cracks, and non catastrophic

crush.

9. What other depth-related issues might you encounter as a trimix diver?

Gauge and computer limits, BCD/dry suit inflation, wet suit com-

pression, regulator performance, and the reliability of decompres-

sion models.

10. What should you look for with respect to equipment rated to deep depths?

Check the manufacturer depth rating. Look for liquid filled mechani-

cal gauges. Trimix dive computers generally are rated to trimix

depths. Look for bulkheads in large items like light cansisters and

DPVs.

padi.com A-19

Product No. 10257 Version 1.0 (06/03) © International PADI, Inc. 2003

Name ________________________________________________________________________________(Please Print)

Class No. _____________ Date________________________ Total Correct ____________________

STUDEENT DIVER STATEMENT: I have reviewed the questions I answered incorrectly or incompletely, and I now understand what I missed.

_______________________________________________ Date_________________________________Student Signature

Tec Trimix Diver Exam ANSWER SHEET

TEC TRIMIX DIVER EXAM□ VERSION A □ VERSION B

1. □ □ □ □

2. □ □ □ □

3. □ □ □ □

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_________________________

A B C D A B C D A B C D

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50. □ □ □ □

A-20

Product No. 10260 Version 1.0 (06/03) © International PADI, Inc. 2003



STUDENT DIVER STATEMENT: I have reviewed the questions I answered incorrectly or incompletely, and I now understand what I missed.


Tec Trimix Diver Exam A ANSWER KEY

TEC TRIMIX DIVER EXAM� VERSION A □ VERSION B

1. □ □ □ �

2. □ � □ □

3. � □ □ □

4. � □ □ □

5. □ � □ □

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25. □ � □ □

26. □ □ □ �

27. � □ □ □

28. � □ □ □

29. (Metric) 31 meters

(Imperial) 103 feet

30. □ □ □ �

31. (Metric) TMx20/29

(Imperial) TMx19/30

32. □ □ □ �

33. □ □ □ �

34. □ □ □ �

35. (Metric) 42 m and 36 m

(Imperial) 140 ft and 120 ft


36. □ □ □ �

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38. � □ □ □

39. □ □ □ �

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42. □ □ � □

43. □ □ □ �

44. □ □ � □

45. EANx50: 2 @ 18m/60ft,

2 @ 15m/50ft, 4 @

12m/40 ft, 9 @ 10m/30 ft

Oxygen: 6 @ 6m/20ft,

30 @ 5m/15ft

46. □ � □ □

47. � □ □ □

48. � □ □ □

49. □ □ □ �

50. □ □ � □

A-21

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padi.com A-23Product No. 10261 Version 1.0 (06/03) © International PADI, Inc. 2003



STUDENT DIVER STATEMENT: I have reviewed the questions I answered incorrectly or incompletely, and I now understand what I missed.


Tec Trimix Diver Exam B ANSWER KEY

TEC TRIMIX DIVER EXAM□ VERSION A � VERSION B

1. □ □ □ �

2. � □ □ □

3. □ � □ □

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26. □ � □ □

27. � □ □ □

28. � □ □ □

29. (Metric) 24 meters

(Imperial) 79 feet

30. □ □ □ �

31. (Metric) TMx17/39

(Imperial) TMx17/41

32. □ □ □ �

33. � □ □ □

34. □ □ □ �

35. (Metric) 42 m and 39 m

(Imperial) 140 ft and 130 ft


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43. □ □ □ �

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45. Oxygen: 4.5 @ 6m/20ft,

25.5 @ 5m/15ft

(rounding up to whole

minute is acceptable)

46. □ � □ □

47. □ □ � □

48. □ □ □ �

49. □ □ □ �

50. □ □ □ �

A-23

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padi.com A-25

OXYGEN CONTENT 10%DEPTH PO2 OTU/MIN CNS%

3 0.13 –– 0.00%

5 0.15 –– 0.00%

6 0.16 –– 0.00%

9 0.19 –– 0.00%

12 0.22 –– 0.00%

15 0.25 –– 0.00%

18 0.28 –– 0.00%

21 0.31 –– 0.00%

24 0.34 –– 0.00%

27 0.37 –– 0.00%

30 0.40 –– 0.00%

33 0.43 –– 0.00%

36 0.46 –– 0.00%

39 0.49 –– 0.00%

42 0.52 0.07 0.14%

45 0.55 0.15 0.14%

48 0.58 0.22 0.14%

51 0.61 0.28 0.17%

54 0.64 0.35 0.17%

57 0.67 0.41 0.17%

60 0.70 0.47 0.17%

63 0.73 0.52 0.22%

66 0.76 0.58 0.22%

69 0.79 0.64 0.22%

72 0.82 0.69 0.28%

75 0.85 0.74 0.28%


3 0.14 –– 0.00%

5 0.17 –– 0.00%

6 0.18 –– 0.00%

9 0.21 –– 0.00%

12 0.24 –– 0.00%

15 0.28 –– 0.00%

18 0.31 –– 0.00%

21 0.34 –– 0.00%

24 0.37 –– 0.00%

27 0.41 –– 0.00%

30 0.44 –– 0.00%

33 0.47 –– 0.00%

36 0.51 0.03 0.14%

39 0.54 0.12 0.14%

42 0.57 0.20 0.14%

45 0.61 0.27 0.17%

48 0.64 0.34 0.17%

51 0.67 0.41 0.17%

54 0.70 0.48 0.17%

57 0.74 0.54 0.22%

60 0.77 0.60 0.22%

63 0.80 0.66 0.22%

66 0.84 0.72 0.28%

69 0.87 0.78 0.28%

72 0.90 0.83 0.28%

75 0.94 0.89 0.33%


3 0.156 –– 0.00%

5 0.18 –– 0.00%

6 0.19 –– 0.00%

9 0.23 –– 0.00%

12 0.26 –– 0.00%

15 0.30 –– 0.00%

18 0.34 –– 0.00%

21 0.37 –– 0.00%

24 0.41 –– 0.00%

27 0.44 –– 0.00%

30 0.48 –– 0.00%

33 0.52 0.06 0.14%

36 0.55 0.15 0.14%

39 0.59 0.24 0.14%

42 0.62 0.31 0.17%

45 0.66 0.39 0.17%

48 0.70 0.46 0.17%

51 0.73 0.53 0.22%

54 0.77 0.60 0.22%

57 0.80 0.66 0.22%

60 0.84 0.73 0.28%

63 0.88 0.79 0.28%

66 0.91 0.85 0.33%

69 0.95 0.91 0.33%

72 0.98 0.97 0.33%

75 1.02 1.03 0.42%

TRIMIX OXYGEN MANAGEMENT TABLE – METRIC


A-26 padi.com


3 0.169 –– 0.00%

5 0.20 –– 0.00%

6 0.21 –– 0.00%

9 0.25 –– 0.00%

12 0.29 –– 0.00%

15 0.33 –– 0.00%

18 0.36 –– 0.00%

21 0.40 –– 0.00%

24 0.44 –– 0.00%

27 0.48 –– 0.00%

30 0.52 0.07 0.14%

33 0.56 0.17 0.14%

36 0.60 0.26 0.14%

39 0.64 0.34 0.17%

42 0.68 0.42 0.17%

45 0.72 0.50 0.22%

48 0.75 0.57 0.22%

51 0.79 0.64 0.22%

54 0.83 0.71 0.28%

57 0.87 0.78 0.28%

60 0.91 0.85 0.33%

63 0.95 0.91 0.33%

66 0.99 0.98 0.33%

69 1.03 1.04 0.42%

72 1.07 1.11 0.42%

75 1.11 1.17 0.48%

OXYGEN CONTEN 14%DEPTH PO2 OTU/MIN CNS%

3 0.182 –– 0.00%

5 0.21 –– 0.00%

6 0.22 –– 0.00%

9 0.27 –– 0.00%

12 0.31 –– 0.00%

15 0.35 –– 0.00%

18 0.39 –– 0.00%

21 0.43 –– 0.00%

24 0.48 –– 0.00%

27 0.52 0.06 0.14%

30 0.56 0.17 0.14%

33 0.60 0.27 0.14%

36 0.64 0.36 0.17%

39 0.69 0.44 0.17%

42 0.73 0.52 0.22%

45 0.77 0.60 0.22%

48 0.81 0.68 0.28%

51 0.85 0.75 0.28%

54 0.90 0.82 0.28%

57 0.94 0.90 0.33%

60 0.98 0.97 0.33%

63 1.02 1.04 0.42%

66 1.06 1.11 0.42%

69 1.11 1.17 0.48%

72 1.15 1.24 0.48%

75 1.19 1.31 0.48%


3 0.195 –– 0.00%

5 0.23 –– 0.00%

6 0.24 –– 0.00%

9 0.29 –– 0.00%

12 0.33 –– 0.00%

15 0.38 –– 0.00%

18 0.42 –– 0.00%

21 0.47 –– 0.00%

24 0.51 0.04 0.14%

27 0.56 0.16 0.14%

30 0.60 0.26 0.14%

33 0.65 0.36 0.17%

36 0.69 0.45 0.17%

39 0.74 0.53 0.22%

42 0.78 0.62 0.22%

45 0.83 0.70 0.28%

48 0.87 0.78 0.28%

51 0.92 0.86 0.33%

54 0.96 0.93 0.33%

57 1.01 1.01 0.42%

60 1.05 1.08 0.42%

63 1.10 1.16 0.42%

66 1.14 1.23 0.48%

69 1.19 1.30 0.48%

72 1.23 1.37 0.55%

75 1.28 1.44 0.55%


padi.com A-27


3 0.208 –– 0.00%

5 0.24 –– 0.00%

6 0.26 –– 0.00%

9 0.30 –– 0.00%

12 0.35 –– 0.00%

15 0.40 –– 0.00%

18 0.45 –– 0.00%

21 0.50 –– 0.00%

24 0.54 0.13 0.14%

27 0.59 0.25 0.14%

30 0.64 0.35 0.17%

33 0.69 0.44 0.17%

36 0.74 0.54 0.22%

39 0.78 0.63 0.22%

42 0.83 0.71 0.28%

45 0.88 0.80 0.28%

48 0.93 0.88 0.33%

51 0.98 0.96 0.33%

54 1.02 1.04 0.42%

57 1.07 1.12 0.42%

60 1.12 1.20 0.48%

63 1.17 1.27 0.48%

66 1.22 1.35 0.55%

69 1.26 1.42 0.55%

72 1.31 1.50 0.67%

75 1.36 1.57 0.67%


3 0.221 –– 0.00%

5 0.26 –– 0.00%

6 0.27 –– 0.00%

9 0.32 –– 0.00%

12 0.37 –– 0.00%

15 0.43 –– 0.00%

18 0.48 –– 0.00%

21 0.53 0.09 0.14%

24 0.58 0.21 0.14%

27 0.63 0.32 0.17%

30 0.68 0.43 0.17%

33 0.73 0.53 0.22%

36 0.78 0.62 0.22%

39 0.83 0.71 0.28%

42 0.88 0.80 0.28%

45 0.94 0.89 0.33%

48 0.99 0.98 0.33%

51 1.04 1.06 0.42%

54 1.09 1.14 0.42%

57 1.14 1.23 0.48%

60 1.19 1.31 0.48%

63 1.24 1.39 0.55%

66 1.29 1.46 0.55%

69 1.34 1.54 0.67%

72 1.39 1.62 0.67%

75 1.45 1.70 0.83%


3 0.234 –– 0.00%

5 0.27 –– 0.00%

6 0.29 –– 0.00%

9 0.34 –– 0.00%

12 0.40 –– 0.00%

15 0.45 –– 0.00%

18 0.50 0.02 0.00%

21 0.56 0.17 0.14%

24 0.61 0.29 0.17%

27 0.67 0.40 0.17%

30 0.72 0.51 0.22%

33 0.77 0.61 0.22%

36 0.83 0.70 0.28%

39 0.88 0.80 0.28%

42 0.94 0.89 0.33%

45 0.99 0.98 0.33%

48 1.04 1.07 0.42%

51 1.10 1.16 0.42%

54 1.15 1.25 0.48%

57 1.21 1.33 0.55%

60 1.26 1.42 0.55%

63 1.31 1.50 0.67%

66 1.37 1.58 0.67%

69 1.42 1.66 0.83%

72 1.48 1.74 0.83%

75 1.53 1.82 2.22%


A-28 padi.com


3 0.247 –– 0.00%

5 0.29 –– 0.00%

6 0.30 –– 0.00%

9 0.36 –– 0.00%

12 0.42 –– 0.00%

15 0.48 –– 0.00%

18 0.53 0.10 0.14%

21 0.59 0.24 0.14%

24 0.65 0.36 0.17%

27 0.70 0.47 0.17%

30 0.76 0.58 0.22%

33 0.82 0.69 0.28%

36 0.87 0.79 0.28%

39 0.93 0.88 0.33%

42 0.99 0.98 0.33%

45 1.05 1.07 0.42%

48 1.10 1.17 0.42%

51 1.16 1.26 0.48%

54 1.22 1.35 0.55%

57 1.27 1.44 0.55%

60 1.33 1.52 0.67%

63 1.39 1.61 0.67%

66 1.44 1.69 0.83%

69 1.50 1.78 0.83%

72 1.56 1.86 2.22%


3 0.26 –– 0.00%

5 0.30 –– 0.00%

6 0.32 –– 0.00%

9 0.38 –– 0.00%

12 0.44 –– 0.00%

15 0.50 0.00 0.00%

18 0.56 0.17 0.14%

21 0.62 0.31 0.17%

24 0.68 0.43 0.17%

27 0.74 0.54 0.22%

30 0.80 0.65 0.22%

33 0.86 0.76 0.28%

36 0.92 0.87 0.33%

39 0.98 0.97 0.33%

42 1.04 1.07 0.42%

45 1.10 1.16 0.42%

48 1.16 1.26 0.48%

51 1.22 1.35 0.55%

54 1.28 1.45 0.55%

57 1.34 1.54 0.67%

60 1.40 1.63 0.83%

63 1.46 1.72 0.83%

66 1.52 1.81 2.22%

69 1.58 1.89 2.22%


3 0.27 –– 0.00%

5 0.32 –– 0.00%

6 0.34 –– 0.00%

9 0.40 –– 0.00%

12 0.46 –– 0.00%

15 0.53 0.08 0.14%

18 0.59 0.24 0.14%

21 0.65 0.37 0.17%

24 0.71 0.49 0.22%

27 0.78 0.61 0.22%

30 0.84 0.73 0.28%

33 0.90 0.84 0.28%

36 0.97 0.94 0.33%

39 1.03 1.05 0.42%

42 1.09 1.15 0.42%

45 1.16 1.25 0.48%

48 1.22 1.35 0.55%

51 1.28 1.45 0.55%

54 1.34 1.54 0.67%

57 1.41 1.64 0.83%

60 1.47 1.73 0.83%

63 1.53 1.83 2.22%

66 1.60 1.92 2.22%


padi.com A-29


3 0.29 –– 0.00%

5 0.33 –– 0.00%

6 0.35 –– 0.00%

9 0.42 –– 0.00%

12 0.48 –– 0.00%

15 0.55 0.15 0.14%

18 0.62 0.30 0.17%

21 0.68 0.43 0.17%

24 0.75 0.56 0.22%

27 0.81 0.68 0.28%

30 0.88 0.80 0.28%

33 0.95 0.91 0.33%

36 1.01 1.02 0.42%

39 1.08 1.13 0.42%

42 1.14 1.23 0.48%

45 1.21 1.34 0.55%

48 1.28 1.44 0.55%

51 1.34 1.54 0.67%

54 1.41 1.64 0.83%

57 1.47 1.74 0.83%

60 1.54 1.84 2.22%


3 0.30 –– 0.00%

5 0.35 –– 0.00%

6 0.37 –– 0.00%

9 0.44 –– 0.00%

12 0.51 0.03 0.14%

15 0.58 0.21 0.14%

18 0.64 0.36 0.17%

21 0.71 0.49 0.22%

24 0.78 0.62 0.22%

27 0.85 0.75 0.28%

30 0.92 0.87 0.33%

33 0.99 0.98 0.33%

36 1.06 1.10 0.42%

39 1.13 1.21 0.48%

42 1.20 1.32 0.48%

45 1.27 1.42 0.55%

48 1.33 1.53 0.67%

51 1.40 1.63 0.67%

54 1.47 1.74 0.83%

57 1.54 1.84 2.22%


3 0.31 –– 0.00%

5 0.36 –– 0.00%

6 0.38 –– 0.00%

9 0.46 –– 0.00%

12 0.53 0.09 0.14%

15 0.60 0.26 0.14%

18 0.67 0.41 0.17%

21 0.74 0.55 0.22%

24 0.82 0.68 0.28%

27 0.89 0.81 0.28%

30 0.96 0.93 0.33%

33 1.03 1.05 0.42%

36 1.10 1.17 0.42%

39 1.18 1.28 0.48%

42 1.25 1.40 0.55%

45 1.32 1.51 0.67%

48 1.39 1.62 0.67%

51 1.46 1.72 0.83%

54 1.54 1.83 2.22%


A-30 padi.com


3 0.33 –– 0.00%

5 0.38 –– 0.00%

6 0.40 –– 0.00%

9 0.48 –– 0.00%

12 0.55 0.15 0.14%

15 0.63 0.32 0.17%

18 0.70 0.47 0.17%

21 0.78 0.61 0.22%

24 0.85 0.74 0.28%

27 0.93 0.87 0.33%

30 1.00 1.00 0.33%

33 1.08 1.12 0.42%

36 1.15 1.24 0.48%

39 1.23 1.36 0.55%

42 1.30 1.48 0.55%

45 1.38 1.59 0.67%

48 1.45 1.70 0.83%

51 1.53 1.81 2.22%


3 0.34 –– 0.00%

5 0.39 –– 0.00%

6 0.42 –– 0.00%

9 0.49 –– 0.00%

12 0.57 0.20 0.14%

15 0.65 0.37 0.17%

18 0.73 0.52 0.22%

21 0.81 0.67 0.28%

24 0.88 0.80 0.28%

27 0.96 0.94 0.33%

30 1.04 1.07 0.42%

33 1.12 1.19 0.48%

36 1.20 1.32 0.48%

39 1.27 1.44 0.55%

42 1.35 1.56 0.67%

45 1.43 1.67 0.83%

48 1.51 1.79 2.22%

51 1.59 1.90 2.22%


3 0.35 –– 0.00%

5 0.41 –– 0.00%

6 0.43 –– 0.00%

9 0.51 0.05 0.14%

12 0.59 0.25 0.14%

15 0.68 0.42 0.17%

18 0.76 0.57 0.22%

21 0.84 0.72 0.28%

24 0.92 0.86 0.33%

27 1.00 1.00 0.33%

30 1.08 1.13 0.42%

33 1.16 1.26 0.48%

36 1.24 1.39 0.55%

39 1.32 1.51 0.67%

42 1.40 1.63 0.67%

45 1.49 1.76 0.83%

48 1.57 1.87 2.22%


3 0.36 –– 0.00%

5 0.42 –– 0.00%

6 0.45 –– 0.00%

9 0.53 0.10 0.14%

12 0.62 0.30 0.17%

15 0.70 0.47 0.17%

18 0.78 0.63 0.22%

21 0.87 0.78 0.28%

24 0.95 0.92 0.33%

27 1.04 1.06 0.42%

30 1.12 1.20 0.48%

33 1.20 1.33 0.48%

36 1.29 1.46 0.55%

39 1.37 1.59 0.67%

42 1.46 1.71 0.83%

45 1.54 1.84 2.22%


3 0.38 –– 0.00%

5 0.44 –– 0.00%

6 0.46 –– 0.00%

9 0.55 0.15 0.14%

12 0.64 0.34 0.17%

15 0.73 0.52 0.22%

18 0.81 0.68 0.28%

21 0.90 0.83 0.28%

24 0.99 0.98 0.33%

27 1.07 1.12 0.42%

30 1.16 1.26 0.48%

33 1.25 1.40 0.55%

36 1.33 1.53 0.67%

39 1.42 1.66 0.83%

42 1.51 1.79 2.22%

45 1.60 1.92 2.22%


3 0.39 –– 0.00%

5 0.45 –– 0.00%

6 0.48 –– 0.00%

9 0.57 0.20 0.14%

12 0.66 0.39 0.17%

15 0.75 0.56 0.22%

18 0.84 0.73 0.28%

21 0.93 0.88 0.33%

24 1.02 1.03 0.42%

27 1.11 1.18 0.48%

30 1.20 1.32 0.48%

33 1.29 1.46 0.55%

36 1.38 1.60 0.67%

39 1.47 1.73 0.83%

42 1.56 1.87 2.22%


padi.com A-31


3 0.40 –– 0.00%

5 0.47 –– 0.00%

6 0.50 –– 0.00%

9 0.59 0.24 0.14%

12 0.68 0.43 0.17%

15 0.78 0.61 0.22%

18 0.87 0.78 0.28%

21 0.96 0.93 0.33%

24 1.05 1.09 0.42%

27 1.15 1.24 0.48%

30 1.24 1.38 0.55%

33 1.33 1.53 0.67%

36 1.43 1.67 0.83%

39 1.52 1.81 2.22%


3 0.42 –– 0.00%

5 0.48 –– 0.00%

6 0.51 0.05 0.14%

9 0.61 0.28 0.17%

12 0.70 0.48 0.17%

15 0.80 0.65 0.22%

18 0.90 0.82 0.28%

21 0.99 0.99 0.33%

24 1.09 1.14 0.42%

27 1.18 1.30 0.48%

30 1.28 1.45 0.55%

33 1.38 1.59 0.67%

36 1.47 1.74 0.83%

39 1.57 1.88 2.22%


3 0.43 –– 0.00%

5 0.50 –– 0.00%

6 0.53 0.09 0.14%

9 0.63 0.32 0.17%

12 0.73 0.52 0.22%

15 0.83 0.70 0.28%

18 0.92 0.87 0.33%

21 1.02 1.04 0.42%

24 1.12 1.20 0.48%

27 1.22 1.36 0.55%

30 1.32 1.51 0.67%

33 1.42 1.66 0.83%

36 1.52 1.80 2.22%


3 0.44 –– 0.00%

5 0.51 0.04 0.14%

6 0.54 0.13 0.14%

9 0.65 0.36 0.17%

12 0.75 0.56 0.22%

15 0.85 0.74 0.28%

18 0.95 0.92 0.33%

21 1.05 1.09 0.42%

24 1.16 1.25 0.48%

27 1.26 1.41 0.55%

30 1.36 1.57 0.67%

33 1.46 1.72 0.83%

36 1.56 1.87 2.22%


3 0.46 –– 0.00%

5 0.53 0.08 0.14%

6 0.56 0.17 0.14%

9 0.67 0.40 0.17%

12 0.77 0.60 0.22%

15 0.88 0.79 0.28%

18 0.98 0.97 0.33%

21 1.09 1.14 0.42%

24 1.19 1.31 0.48%

27 1.30 1.47 0.55%

30 1.40 1.63 0.67%

33 1.51 1.79 2.22%


3 0.47 –– 0.00%

5 0.54 0.12 0.14%

6 0.58 0.21 0.14%

9 0.68 0.44 0.17%

12 0.79 0.64 0.22%

15 0.90 0.83 0.28%

18 1.01 1.01 0.42%

21 1.12 1.19 0.48%

24 1.22 1.36 0.55%

27 1.33 1.53 0.67%

30 1.44 1.69 0.83%

33 1.55 1.85 2.22%


A-32 padi.com


3 0.55 0.14 0.14%

5 0.63 0.33 0.17%

6 0.67 0.41 0.17%

9 0.80 0.65 0.22%

12 0.92 0.87 0.33%

15 1.05 1.08 0.42%

18 1.18 1.28 0.48%

21 1.30 1.48 0.55%

24 1.43 1.67 0.83%

27 1.55 1.86 2.22%


3 0.56 0.17 0.14%

5 0.65 0.36 0.17%

6 0.69 0.44 0.17%

9 0.82 0.69 0.28%

12 0.95 0.91 0.33%

15 1.08 1.12 0.42%

18 1.20 1.33 0.48%

21 1.33 1.53 0.67%

24 1.46 1.72 0.83%

27 1.59 1.91 2.22%


3 0.57 0.20 0.14%

5 0.66 0.39 0.17%

6 0.70 0.48 0.17%

9 0.84 0.72 0.28%

12 0.97 0.95 0.33%

15 1.10 1.16 0.42%

18 1.23 1.37 0.55%

21 1.36 1.57 0.67%

24 1.50 1.77 0.83%


3 0.48 –– 0.00%

5 0.56 0.16 0.14%

6 0.59 0.25 0.14%

9 0.70 0.47 0.17%

12 0.81 0.68 0.28%

15 0.93 0.87 0.33%

18 1.04 1.06 0.42%

21 1.15 1.24 0.48%

24 1.26 1.41 0.55%

27 1.37 1.58 0.67%

30 1.48 1.75 0.83%

33 1.59 1.91 2.22%


3 0.49 –– 0.00%

5 0.57 0.20 0.14%

6 0.61 0.28 0.17%

9 0.72 0.51 0.22%

12 0.84 0.72 0.28%

15 0.95 0.92 0.33%

18 1.06 1.11 0.42%

21 1.18 1.29 0.48%

24 1.29 1.46 0.33%

27 1.41 1.64 0.83%

30 1.52 1.81 2.22%


3 0.51 0.03 0.14%

5 0.59 0.23 0.14%

6 0.62 0.31 0.17%

9 0.74 0.55 0.22%

12 0.86 0.76 0.28%

15 0.98 0.96 0.33%

18 1.09 1.15 0.42%

21 1.21 1.34 0.55%

24 1.33 1.52 0.67%

27 1.44 1.69 0.83%

30 1.56 1.87 2.22%


3 0.52 0.07 0.14%

5 0.60 0.26 0.14%

6 0.64 0.35 0.17%

9 0.76 0.58 0.22%

12 0.88 0.80 0.28%

15 1.00 1.00 0.33%

18 1.12 1.20 0.48%

21 1.24 1.38 0.55%

24 1.36 1.57 0.67%

27 1.48 1.75 0.83%

30 1.60 1.92 2.22%


3 0.53 0.10 0.14%

5 0.62 0.30 0.17%

6 0.66 0.38 0.17%

9 0.78 0.62 0.22%

12 0.90 0.83 0.28%

15 1.03 1.04 0.42%

18 1.15 1.24 0.48%

21 1.27 1.43 0.55%

24 1.39 1.62 0.67%

27 1.52 1.80 2.22%


padi.com A-33


3 0.59 0.23 0.14%

5 0.68 0.42 0.17%

6 0.72 0.51 0.22%

9 0.86 0.75 0.28%

12 0.99 0.98 0.33%

15 1.13 1.20 0.48%

18 1.26 1.42 0.55%

21 1.40 1.62 0.67%

24 1.53 1.82 2.22%


3 0.60 0.26 0.14%

5 0.69 0.45 0.17%

6 0.74 0.54 0.22%

9 0.87 0.79 0.28%

12 1.01 1.02 0.42%

15 1.15 1.24 0.48%

18 1.29 1.46 0.55%

21 1.43 1.67 0.83%

24 1.56 1.87 2.22%


3 0.61 0.29 0.17%

5 0.71 0.48 0.22%

6 0.75 0.57 0.22%

9 0.89 0.82 0.28%

12 1.03 1.06 0.42%

15 1.18 1.28 0.48%

18 1.32 1.50 0.67%

21 1.46 1.71 0.83%

24 1.60 1.92 2.22%


3 0.62 0.31 0.17%

5 0.72 0.51 0.22%

6 0.77 0.60 0.22%

9 0.91 0.85 0.33%

12 1.06 1.09 0.42%

15 1.20 1.32 0.48%

18 1.34 1.54 0.67%

21 1.49 1.76 0.83%


3 0.64 0.34 0.17%

5 0.74 0.53 0.22%

6 0.78 0.63 0.22%

9 0.93 0.88 0.33%

12 1.08 1.13 0.42%

15 1.23 1.36 0.55%

18 1.37 1.59 0.67%

21 1.52 1.81 2.22%


3 0.65 0.37 0.17%

5 0.75 0.56 0.22%

6 0.80 0.65 0.22%

9 0.95 0.92 0.33%

12 1.10 1.16 0.42%

15 1.25 1.40 0.55%

18 1.40 1.63 0.67%

21 1.55 1.85 2.22%


A-34 padi.com


10 0.13 –– 0.00%

15 0.15 –– 0.00%

20 0.16 –– 0.00%

30 0.19 –– 0.00%

40 0.22 –– 0.00%

50 0.25 –– 0.00%

60 0.28 –– 0.00%

70 0.31 –– 0.00%

80 0.34 –– 0.00%

90 0.37 –– 0.00%

100 0.40 –– 0.00%

110 0.43 –– 0.00%

120 0.46 –– 0.00%

130 0.49 –– 0.00%

140 0.52 0.08 0.14%

150 0.55 0.16 0.14%

160 0.58 0.23 0.14%

170 0.62 0.30 0.17%

180 0.65 0.36 0.17%

190 0.68 0.42 0.17%

200 0.71 0.48 0.22%

210 0.74 0.54 0.22%

220 0.77 0.59 0.22%

230 0.80 0.65 0.22%

240 0.83 0.70 0.28%

250 0.86 0.76 0.28%


10 0.14 –– 0.00%

15 0.16 –– 0.00%

20 0.18 –– 0.00%

30 0.21 –– 0.00%

40 0.24 –– 0.00%

50 0.28 –– 0.00%

60 0.31 –– 0.00%

70 0.34 –– 0.00%

80 0.38 –– 0.00%

90 0.41 –– 0.00%

100 0.44 –– 0.00%

110 0.48 –– 0.00%

120 0.51 0.04 0.14%

130 0.54 0.13 0.14%

140 0.58 0.21 0.14%

150 0.61 0.28 0.17%

160 0.64 0.35 0.17%

170 0.68 0.42 0.17%

180 0.71 0.49 0.22%

190 0.74 0.55 0.22%

200 0.78 0.61 0.22%

210 0.81 0.67 0.28%

220 0.84 0.73 0.28%

230 0.88 0.79 0.28%

240 0.91 0.85 0.33%

250 0.94 0.90 0.33%


10 0.16 –– 0.00%

15 0.17 –– 0.00%

20 0.19 –– 0.00%

30 0.23 –– 0.00%

40 0.27 –– 0.00%

50 0.30 –– 0.00%

60 0.34 –– 0.00%

70 0.37 –– 0.00%

80 0.41 –– 0.00%

90 0.45 –– 0.00%

100 0.48 –– 0.00%

110 0.52 0.07 0.14%

120 0.56 0.16 0.14%

130 0.59 0.25 0.14%

140 0.63 0.33 0.17%

150 0.67 0.40 0.17%

160 0.70 0.47 0.17%

170 0.74 0.54 0.22%

180 0.77 0.61 0.22%

190 0.81 0.67 0.28%

200 0.85 0.74 0.28%

210 0.88 0.80 0.28%

220 0.92 0.87 0.33%

230 0.96 0.93 0.33%

240 0.99 0.99 0.33%

250 1.03 1.05 0.42%

TRIMIX OXYGEN MANAGEMENT TABLE – IMPERIAL


padi.com A-35


10 0.17 –– 0.00%

15 0.19 –– 0.00%

20 0.21 –– 0.00%

30 0.25 –– 0.00%

40 0.29 –– 0.00%

50 0.33 –– 0.00%

60 0.37 –– 0.00%

70 0.41 –– 0.00%

80 0.45 –– 0.00%

90 0.48 –– 0.00%

100 0.52 0.08 0.14%

110 0.56 0.18 0.14%

120 0.60 0.27 0.14%

130 0.64 0.35 0.17%

140 0.68 0.43 0.17%

150 0.72 0.51 0.22%

160 0.76 0.58 0.22%

170 0.80 0.65 0.22%

180 0.84 0.72 0.28%

190 0.88 0.79 0.28%

200 0.92 0.86 0.33%

210 0.96 0.93 0.33%

220 1.00 0.99 0.33%

230 1.04 1.06 0.42%

240 1.08 1.12 0.42%

250 1.11 1.19 0.48%

OXYGEN CONTEN 14%DEPTH PO2 OTU/MIN CNS%

10 0.18 –– 0.00%

15 0.20 –– 0.00%

20 0.22 –– 0.00%

30 0.27 –– 0.00%

40 0.31 –– 0.00%

50 0.35 –– 0.00%

60 0.39 –– 0.00%

70 0.44 –– 0.00%

80 0.48 –– 0.00%

90 0.52 0.07 0.14%

100 0.56 0.18 0.14%

110 0.61 0.28 0.17%

120 0.65 0.37 0.17%

130 0.69 0.45 0.17%

140 0.73 0.53 0.22%

150 0.78 0.61 0.22%

160 0.82 0.69 0.28%

170 0.86 0.76 0.28%

180 0.90 0.84 0.28%

190 0.95 0.91 0.33%

200 0.99 0.98 0.33%

210 1.03 1.05 0.42%

220 1.07 1.12 0.42%

230 1.12 1.19 0.48%

240 1.16 1.26 0.48%

250 1.20 1.32 0.48%


10 0.20 –– 0.00%

15 0.22 –– 0.00%

20 0.24 –– 0.00%

30 0.29 –– 0.00%

40 0.33 –– 0.00%

50 0.38 –– 0.00%

60 0.42 –– 0.00%

70 0.47 –– 0.00%

80 0.51 0.05 0.14%

90 0.56 0.17 0.14%

100 0.60 0.27 0.14%

110 0.65 0.37 0.17%

120 0.70 0.46 0.17%

130 0.74 0.55 0.22%

140 0.79 0.63 0.22%

150 0.83 0.71 0.28%

160 0.88 0.79 0.28%

170 0.92 0.87 0.33%

180 0.97 0.95 0.33%

190 1.01 1.02 0.42%

200 1.06 1.10 0.42%

210 1.10 1.17 0.42%

220 1.15 1.24 0.48%

230 1.20 1.32 0.48%

240 1.24 1.39 0.55%

250 1.29 1.46 0.55%


A-36 padi.com


10 0.21 –– 0.00%

15 0.23 –– 0.00%

20 0.26 –– 0.00%

30 0.31 –– 0.00%

40 0.35 –– 0.00%

50 0.40 –– 0.00%

60 0.45 –– 0.00%

70 0.50 –– 0.00%

80 0.55 0.14 0.14%

90 0.60 0.25 0.14%

100 0.64 0.36 0.17%

110 0.69 0.45 0.17%

120 0.74 0.55 0.22%

130 0.79 0.64 0.22%

140 0.84 0.72 0.28%

150 0.89 0.81 0.28%

160 0.94 0.89 0.33%

170 0.98 0.97 0.33%

180 1.03 1.05 0.42%

190 1.08 1.13 0.42%

200 1.13 1.21 0.48%

210 1.18 1.29 0.48%

220 1.23 1.36 0.55%

230 1.28 1.44 0.55%

240 1.32 1.51 0.67%

250 1.37 1.59 0.67%


10 0.22 –– 0.00%

15 0.25 –– 0.00%

20 0.27 –– 0.00%

30 0.32 –– 0.00%

40 0.38 –– 0.00%

50 0.43 –– 0.00%

60 0.48 –– 0.00%

70 0.53 0.10 0.14%

80 0.58 0.22 0.14%

90 0.63 0.33 0.17%

100 0.69 0.44 0.17%

110 0.74 0.54 0.22%

120 0.79 0.63 0.22%

130 0.84 0.73 0.28%

140 0.89 0.82 0.28%

150 0.94 0.90 0.33%

160 0.99 0.99 0.33%

170 1.05 1.08 0.42%

180 1.10 1.16 0.42%

190 1.15 1.24 0.48%

200 1.20 1.32 0.48%

210 1.25 1.40 0.55%

220 1.30 1.48 0.55%

230 1.35 1.56 0.67%

240 1.41 1.64 0.83%

250 1.46 1.72 0.83%


10 0.23 –– 0.00%

15 0.26 –– 0.00%

20 0.29 –– 0.00%

30 0.34 –– 0.00%

40 0.40 –– 0.00%

50 0.45 –– 0.00%

60 0.51 0.03 0.14%

70 0.56 0.18 0.14%

80 0.62 0.30 0.17%

90 0.67 0.41 0.17%

100 0.73 0.52 0.22%

110 0.78 0.62 0.22%

120 0.83 0.72 0.28%

130 0.89 0.81 0.28%

140 0.94 0.91 0.33%

150 1.00 1.00 0.33%

160 1.05 1.09 0.42%

170 1.11 1.18 0.48%

180 1.16 1.26 0.48%

190 1.22 1.35 0.55%

200 1.27 1.43 0.55%

210 1.33 1.52 0.67%

220 1.38 1.60 0.67%

230 1.43 1.68 0.83%

240 1.49 1.76 0.83%

250 1.54 1.84 2.22%


padi.com A-37


10 0.25 –– 0.00%

15 0.28 –– 0.00%

20 0.31 –– 0.00%

30 0.36 –– 0.00%

40 0.42 –– 0.00%

50 0.48 –– 0.00%

60 0.54 0.11 0.14%

70 0.59 0.25 0.14%

80 0.65 0.37 0.17%

90 0.71 0.48 0.22%

100 0.77 0.59 0.22%

110 0.82 0.70 0.28%

120 0.88 0.80 0.28%

130 0.94 0.90 0.33%

140 1.00 0.99 0.33%

150 1.05 1.09 0.42%

160 1.11 1.18 0.48%

170 1.17 1.27 0.48%

180 1.23 1.36 0.55%

190 1.28 1.45 0.55%

200 1.34 1.54 0.67%

210 1.40 1.63 0.67%

220 1.46 1.71 0.83%

230 1.51 1.80 2.22%

240 1.57 1.88 2.22%


10 0.26 –– 0.00%

15 0.29 –– 0.00%

20 0.32 –– 0.00%

30 0.38 –– 0.00%

40 0.44 –– 0.00%

50 0.50 0.01 0.00%

60 0.56 0.18 0.14%

70 0.62 0.31 0.17%

80 0.68 0.44 0.17%

90 0.75 0.55 0.22%

100 0.81 0.67 0.28%

110 0.87 0.77 0.28%

120 0.93 0.88 0.33%

130 0.99 0.98 0.33%

140 1.05 1.08 0.42%

150 1.11 1.18 0.48%

160 1.17 1.27 0.48%

170 1.23 1.37 0.55%

180 1.29 1.46 0.55%

190 1.35 1.56 0.67%

200 1.41 1.65 0.83%

210 1.47 1.74 0.83%

220 1.53 1.83 2.22%

230 1.59 1.92 2.22%


10 0.27 –– 0.00%

15 0.31 –– 0.00%

20 0.34 –– 0.00%

30 0.40 –– 0.00%

40 0.46 –– 0.00%

50 0.53 0.09 0.14%

60 0.59 0.24 0.14%

70 0.66 0.38 0.17%

80 0.72 0.50 0.22%

90 0.78 0.62 0.22%

100 0.85 0.74 0.28%

110 0.91 0.85 0.33%

120 0.97 0.96 0.33%

130 1.04 1.06 0.42%

140 1.10 1.16 0.42%

150 1.16 1.27 0.48%

160 1.23 1.37 0.55%

170 1.29 1.46 0.55%

180 1.36 1.56 0.67%

190 1.42 1.66 0.83%

200 1.48 1.75 0.83%

210 1.55 1.85 2.22%

220 1.61 1.94 2.22%


A-38 padi.com


10 0.29 –– 0.00%

15 0.32 –– 0.00%

20 0.35 –– 0.00%

30 0.42 –– 0.00%

40 0.49 –– 0.00%

50 0.55 0.16 0.14%

60 0.62 0.31 0.17%

70 0.69 0.44 0.17%

80 0.75 0.57 0.22%

90 0.82 0.69 0.28%

100 0.89 0.81 0.28%

110 0.95 0.92 0.33%

120 1.02 1.03 0.42%

130 1.09 1.14 0.42%

140 1.15 1.25 0.48%

150 1.22 1.35 0.55%

160 1.29 1.46 0.55%

170 1.35 1.56 0.67%

180 1.42 1.66 0.83%

190 1.49 1.76 0.83%

200 1.55 1.86 2.22%


10 0.30 –– 0.00%

15 0.33 –– 0.00%

20 0.37 –– 0.00%

30 0.44 –– 0.00%

40 0.51 0.03 0.14%

50 0.58 0.22 0.14%

60 0.65 0.36 0.17%

70 0.72 0.50 0.22%

80 0.79 0.63 0.22%

90 0.86 0.76 0.28%

100 0.93 0.88 0.33%

110 1.00 0.99 0.33%

120 1.07 1.11 0.42%

130 1.14 1.22 0.48%

140 1.21 1.33 0.55%

150 1.28 1.44 0.55%

160 1.35 1.55 0.67%

170 1.41 1.65 0.83%

180 1.48 1.75 0.83%

190 1.55 1.86 2.22%


10 0.31 –– 0.00%

15 0.35 –– 0.00%

20 0.39 –– 0.00%

30 0.46 –– 0.00%

40 0.53 0.10 0.14%

50 0.60 0.27 0.14%

60 0.68 0.42 0.17%

70 0.75 0.56 0.22%

80 0.82 0.69 0.28%

90 0.89 0.82 0.28%

100 0.97 0.95 0.33%

110 1.04 1.07 0.42%

120 1.11 1.18 0.48%

130 1.19 1.30 0.48%

140 1.26 1.41 0.55%

150 1.33 1.52 0.67%

160 1.40 1.63 0.67%

170 1.48 1.74 0.83%

180 1.55 1.85 2.22%


padi.com A-39


10 0.33 –– 0.00%

15 0.36 –– 0.00%

20 0.40 –– 0.00%

30 0.48 –– 0.00%

40 0.55 0.16 0.14%

50 0.63 0.32 0.17%

60 0.70 0.48 0.17%

70 0.78 0.62 0.22%

80 0.86 0.75 0.28%

90 0.93 0.89 0.33%

100 1.01 1.01 0.42%

110 1.08 1.14 0.42%

120 1.16 1.26 0.48%

130 1.23 1.38 0.55%

140 1.31 1.49 0.67%

150 1.39 1.61 0.67%

160 1.46 1.72 0.83%

170 1.54 1.83 2.22%


10 0.34 –– 0.00%

15 0.38 –– 0.00%

20 0.42 –– 0.00%

30 0.50 –– 0.00%

40 0.58 0.21 0.14%

50 0.65 0.38 0.17%

60 0.73 0.53 0.22%

70 0.81 0.68 0.28%

80 0.89 0.81 0.28%

90 0.97 0.95 0.33%

100 1.05 1.08 0.42%

110 1.13 1.21 0.48%

120 1.21 1.33 0.55%

130 1.28 1.45 0.55%

140 1.36 1.57 0.67%

150 1.44 1.69 0.83%

160 1.52 1.81 2.22%

170 1.60 1.92 2.22%


10 0.35 –– 0.00%

15 0.39 –– 0.00%

20 0.43 –– 0.00%

30 0.52 0.06 0.14%

40 0.60 0.26 0.14%

50 0.68 0.43 0.17%

60 0.76 0.58 0.22%

70 0.84 0.73 0.28%

80 0.92 0.87 0.33%

90 1.01 1.01 0.42%

100 1.09 1.14 0.42%

110 1.17 1.27 0.48%

120 1.25 1.40 0.55%

130 1.33 1.53 0.67%

140 1.42 1.65 0.83%

150 1.50 1.77 0.83%

160 1.58 1.89 2.22%


10 0.36 –– 0.00%

15 0.41 –– 0.00%

20 0.45 –– 0.00%

30 0.53 0.11 0.14%

40 0.62 0.30 0.17%

50 0.70 0.48 0.17%

60 0.79 0.63 0.22%

70 0.87 0.79 0.28%

80 0.96 0.93 0.33%

90 1.04 1.07 0.42%

100 1.13 1.21 0.48%

110 1.21 1.34 0.55%

120 1.30 1.47 0.55%

130 1.38 1.60 0.67%

140 1.47 1.73 0.83%

150 1.55 1.86 2.22%


10 0.38 –– 0.00%

15 0.42 –– 0.00%

20 0.47 –– 0.00%

30 0.55 0.16 0.14%

40 0.64 0.35 0.17%

50 0.73 0.52 0.22%

60 0.82 0.69 0.28%

70 0.91 0.84 0.33%

80 0.99 0.99 0.33%

90 1.08 1.13 0.42%

100 1.17 1.27 0.48%

110 1.26 1.41 0.55%

120 1.34 1.55 0.67%

130 1.43 1.68 0.83%

140 1.52 1.81 2.22%

150 1.61 1.94 2.22%


10 0.39 –– 0.00%

15 0.44 –– 0.00%

20 0.48 –– 0.00%

30 0.57 0.20 0.14%

40 0.66 0.40 0.17%

50 0.75 0.57 0.22%

60 0.85 0.74 0.28%

70 0.94 0.89 0.33%

80 1.03 1.05 0.42%

90 1.12 1.19 0.48%

100 1.21 1.34 0.55%

110 1.30 1.48 0.55%

120 1.39 1.62 0.67%

130 1.48 1.75 0.83%

140 1.57 1.88 2.22%


A-40 padi.com


10 0.40 –– 0.00%

15 0.45 –– 0.00%

20 0.50 –– 0.00%

30 0.59 0.24 0.14%

40 0.69 0.44 0.17%

50 0.78 0.62 0.22%

60 0.87 0.79 0.28%

70 0.97 0.95 0.33%

80 1.06 1.10 0.42%

90 1.16 1.25 0.48%

100 1.25 1.40 0.55%

110 1.34 1.54 0.67%

120 1.44 1.68 0.83%

130 1.53 1.82 2.22%


10 0.42 –– 0.00%

15 0.47 –– 0.00%

20 0.51 0.05 0.14%

30 0.61 0.29 0.17%

40 0.71 0.48 0.22%

50 0.80 0.66 0.22%

60 0.90 0.83 0.28%

70 1.00 1.00 0.33%

80 1.10 1.16 0.42%

90 1.19 1.31 0.48%

100 1.29 1.46 0.55%

110 1.39 1.61 0.67%

120 1.48 1.75 0.83%

130 1.58 1.90 2.22%


10 0.43 –– 0.00%

15 0.48 –– 0.00%

20 0.53 0.10 0.14%

30 0.63 0.33 0.17%

40 0.73 0.52 0.22%

50 0.83 0.71 0.28%

60 0.93 0.88 0.33%

70 1.03 1.05 0.42%

80 1.13 1.21 0.48%

90 1.23 1.37 0.55%

100 1.33 1.52 0.67%

110 1.43 1.67 0.83%

120 1.53 1.82 2.22%


10 0.44 –– 0.00%

15 0.49 –– 0.00%

20 0.55 0.14 0.14%

30 0.65 0.37 0.17%

40 0.75 0.57 0.22%

50 0.86 0.75 0.28%

60 0.96 0.93 0.33%

70 1.06 1.10 0.42%

80 1.16 1.27 0.48%

90 1.27 1.43 0.55%

100 1.37 1.58 0.67%

110 1.47 1.74 0.83%

120 1.58 1.89 2.22%


10 0.46 –– 0.00%

15 0.51 0.04 0.14%

20 0.56 0.18 0.14%

30 0.67 0.40 0.17%

40 0.77 0.61 0.22%

50 0.88 0.80 0.28%

60 0.99 0.98 0.33%

70 1.09 1.15 0.42%

80 1.20 1.32 0.48%

90 1.30 1.48 0.55%

100 1.41 1.64 0.83%

110 1.52 1.80 2.22%


10 0.47 –– 0.00%

15 0.52 0.08 0.14%

20 0.58 0.21 0.14%

30 0.69 0.44 0.17%

40 0.80 0.65 0.22%

50 0.91 0.84 0.33%

60 1.01 1.02 0.42%

70 1.12 1.20 0.48%

80 1.23 1.37 0.55%

90 1.34 1.54 0.67%

100 1.45 1.70 0.83%

110 1.56 1.87 2.22%


padi.com A-41


10 0.55 0.14 0.14%

15 0.61 0.29 0.17%

20 0.67 0.42 0.17%

30 0.80 0.66 0.22%

40 0.93 0.88 0.33%

50 1.06 1.09 0.42%

60 1.18 1.30 0.48%

70 1.31 1.49 0.67%

80 1.44 1.69 0.83%

90 1.57 1.87 2.22%


10 0.56 0.17 0.14%

15 0.63 0.32 0.17%

20 0.69 0.45 0.17%

30 0.82 0.69 0.28%

40 0.95 0.92 0.33%

50 1.08 1.13 0.42%

60 1.21 1.34 0.55%

70 1.34 1.54 0.67%

80 1.47 1.74 0.83%

90 1.60 1.93 2.22%


10 0.57 0.20 0.14%

15 0.64 0.35 0.17%

20 0.71 0.48 0.22%

30 0.84 0.73 0.28%

40 0.97 0.96 0.33%

50 1.11 1.17 0.48%

60 1.24 1.38 0.55%

70 1.37 1.59 0.67%

80 1.51 1.79 2.22%


10 0.48 –– 0.00%

15 0.54 0.12 0.14%

20 0.59 0.25 0.14%

30 0.71 0.48 0.22%

40 0.82 0.69 0.28%

50 0.93 0.88 0.33%

60 1.04 1.07 0.42%

70 1.15 1.25 0.48%

80 1.27 1.43 0.55%

90 1.38 1.60 0.67%

100 1.49 1.76 0.83%

110 1.60 1.93 2.22%


10 0.50 –– 0.00%

15 0.55 0.15 0.14%

20 0.61 0.29 0.17%

30 0.73 0.52 0.22%

40 0.84 0.73 0.28%

50 0.96 0.93 0.33%

60 1.07 1.12 0.42%

70 1.19 1.30 0.48%

80 1.30 1.48 0.33%

90 1.42 1.65 0.83%

100 1.53 1.82 2.22%


10 0.51 0.03 0.14%

15 0.57 0.19 0.14%

20 0.63 0.32 0.17%

30 0.74 0.55 0.22%

40 0.86 0.77 0.28%

50 0.98 0.97 0.33%

60 1.10 1.16 0.42%

70 1.22 1.35 0.55%

80 1.34 1.53 0.67%

90 1.45 1.71 0.83%

100 1.57 1.88 2.22%


10 0.52 0.07 0.14%

15 0.58 0.22 0.14%

20 0.64 0.35 0.17%

30 0.76 0.59 0.22%

40 0.88 0.80 0.28%

50 1.01 1.01 0.42%

60 1.13 1.21 0.48%

70 1.25 1.40 0.55%

80 1.37 1.58 0.67%

90 1.49 1.76 0.83%

100 1.61 1.94 2.22%


10 0.53 0.11 0.14%

15 0.60 0.25 0.14%

20 0.66 0.39 0.17%

30 0.78 0.62 0.22%

40 0.91 0.84 0.33%

50 1.03 1.05 0.42%

60 1.16 1.25 0.48%

70 1.28 1.45 0.55%

80 1.40 1.63 0.67%

90 1.53 1.82 2.22%


A-42 padi.com


10 0.59 0.23 0.14%

15 0.65 0.38 0.17%

20 0.72 0.51 0.22%

30 0.86 0.76 0.28%

40 1.00 0.99 0.33%

50 1.13 1.21 0.48%

60 1.27 1.43 0.55%

70 1.40 1.64 0.67%

80 1.54 1.84 2.22%


10 0.60 0.26 0.14%

15 0.67 0.41 0.17%

20 0.74 0.54 0.22%

30 0.88 0.79 0.28%

40 1.02 1.03 0.42%

50 1.16 1.25 0.48%

60 1.30 1.47 0.55%

70 1.44 1.68 0.83%

80 1.58 1.89 2.22%


10 0.61 0.29 0.17%

15 0.68 0.44 0.17%

20 0.75 0.57 0.22%

30 0.90 0.83 0.28%

40 1.04 1.07 0.42%

50 1.18 1.29 0.48%

60 1.32 1.51 0.67%

70 1.47 1.73 0.83%

80 1.61 1.94 2.22%


10 0.63 0.32 0.17%

15 0.70 0.46 0.17%

20 0.77 0.60 0.22%

30 0.92 0.86 0.33%

40 1.06 1.10 0.42%

50 1.21 1.33 0.55%

60 1.35 1.56 0.67%

70 1.50 1.78 0.83%


10 0.64 0.34 0.17%

15 0.71 0.49 0.22%

20 0.79 0.63 0.22%

30 0.94 0.89 0.33%

40 1.08 1.14 0.42%

50 1.23 1.37 0.55%

60 1.38 1.60 0.67%

70 1.53 1.82 2.22%


10 0.65 0.37 0.17%

15 0.73 0.52 0.22%

20 0.80 0.66 0.22%

30 0.95 0.92 0.33%

40 1.11 1.17 0.48%

50 1.26 1.41 0.55%

60 1.41 1.64 0.83%

70 1.56 1.87 2.22%


padi.com A-43

Depth (m) Conversion Depth (ft) ConversionFactor Factor

3 1.3 10 1.3

5 1.5 15 1.5

6 1.6 20 1.6

9 1.9 30 1.9

12 2.2 40 2.2

15 2.5 50 2.5

18 2.8 60 2.8

21 3.1 70 3.1

24 3.4 80 3.4

27 3.7 90 3.7

30 4.0 100 4.0

33 4.3 110 4.3

36 4.6 120 4.6

39 4.9 130 4.9

42 5.2 140 5.2

45 5.5 150 5.5

48 5.8 160 5.8

51 6.1 170 6.2

54 6.4 180 6.5

57 6.7 190 6.8

60 7.0 200 7.1

63 7.3 210 7.4

66 7.6 220 7.7

69 7.9 230 8.0

72 8.2 240 8.3

75 8.5 250 8.6

78 8.8 260 8.9

81 9.1 270 9.2

84 9.4 280 9.5

87 9.7 290 9.8

90 10.0 300 10.1

METRIC IMPERIAL

TRIMIX SAC CONVERSION FACTORS

Multiply your SAC rate by the factor to determine your gas comsumption rate at depth.


A-44 padi.com

TRIMIX EQUIVALENT NARCOTIC DEPTH TABLE – METRIC

Fraction Depth MetersHe 24 27 30 33 36 39 42 45 48 51 54 57 60 63 66 69 72 75 78 81 84 87 90

10% 21 23 26 29 31 34 37 40 42 45 48 50 53 56 58 61 64 67 69 72 75 77 8011% 20 23 26 28 31 34 36 39 42 44 47 50 52 55 58 60 63 66 68 71 74 76 7912% 20 23 25 28 30 33 36 38 41 44 46 49 52 54 57 60 62 65 67 70 73 75 7813% 20 22 25 27 30 33 35 38 40 43 46 48 51 54 56 59 61 64 67 69 72 74 7714% 19 22 24 27 30 32 35 37 40 42 45 48 50 53 55 58 61 63 66 68 71 73 7615% 19 21 24 27 29 32 34 37 39 42 44 47 50 52 55 57 60 62 65 67 70 72 7516% 19 21 24 26 29 31 34 36 39 41 44 46 49 51 54 56 59 61 64 66 69 71 7417% 18 21 23 26 28 31 33 36 38 41 43 46 48 51 53 56 58 61 63 66 68 71 7318% 18 20 23 25 28 30 33 35 38 40 42 45 47 50 52 55 57 60 62 65 67 70 7219% 18 20 22 25 27 30 32 35 37 39 42 44 47 49 52 54 56 59 61 64 66 69 7120% 17 20 22 24 27 29 32 34 36 39 41 44 46 48 51 53 56 58 60 63 65 68 7021% 17 19 22 24 26 29 31 33 36 38 41 43 45 48 50 52 55 57 60 62 64 67 6922% 17 19 21 24 26 28 31 33 35 38 40 42 45 47 49 52 54 56 59 61 63 66 6823% 16 18 21 23 25 28 30 32 35 37 39 42 44 46 49 51 53 55 58 60 62 65 6724% 16 18 20 23 25 27 30 32 34 36 39 41 43 45 48 50 52 55 57 59 61 64 6625% 16 18 20 22 25 27 29 31 34 36 38 40 43 45 47 49 52 54 56 58 61 63 6526% 15 17 20 22 24 26 28 31 33 35 37 40 42 44 46 48 51 53 55 57 60 62 6427% 15 17 19 21 24 26 28 30 32 35 37 39 41 43 45 48 50 52 54 56 59 61 6328% 14 17 19 21 23 25 27 30 32 34 36 38 40 43 45 47 49 51 53 56 58 60 6229% 14 16 18 21 23 25 27 29 31 33 35 38 40 42 44 46 48 50 52 55 57 59 6130% 14 16 18 20 22 24 26 29 31 33 35 37 39 41 43 45 47 50 52 54 56 58 6031% 13 16 18 20 22 24 26 28 30 32 34 36 38 40 42 45 47 49 51 53 55 57 5932% 13 15 17 19 21 23 25 27 29 31 34 36 38 40 42 44 46 48 50 52 54 56 5833% 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 5734% 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 5635% 12 14 16 18 20 22 24 26 28 30 32 34 36 37 39 41 43 45 47 49 51 53 5536% 12 14 16 18 19 21 23 25 27 29 31 33 35 37 39 41 42 44 46 48 50 52 5437% 11 13 15 17 19 21 23 25 27 28 30 32 34 36 38 40 42 44 45 47 49 51 5338% 11 13 15 17 19 20 22 24 26 28 30 32 33 35 37 39 41 43 45 46 48 50 5239% 11 13 14 16 18 20 22 24 25 27 29 31 33 35 36 38 40 42 44 46 47 49 5140% 10 12 14 16 18 19 21 23 25 27 28 30 32 34 36 37 39 41 43 45 46 48 5041% 10 12 14 15 17 19 21 22 24 26 28 30 31 33 35 37 38 40 42 44 45 47 4942% 10 11 13 15 17 18 20 22 24 25 27 29 31 32 34 36 38 39 41 43 45 46 4843% 9 11 13 15 16 18 20 21 23 25 26 28 30 32 33 35 37 38 40 42 44 45 4744% 9 11 12 14 16 17 19 21 22 24 26 28 29 31 33 34 36 38 39 41 43 44 4645% 9 10 12 14 15 17 19 20 22 24 25 27 29 30 32 33 35 37 38 40 42 43 4546% 8 10 12 13 15 16 18 20 21 23 25 26 28 29 31 33 34 36 38 39 41 42 4447% 8 10 11 13 14 16 18 19 21 22 24 26 27 29 30 32 33 35 37 38 40 41 4348% 8 9 11 12 14 15 17 19 20 22 23 25 26 28 30 31 33 34 36 37 39 40 4249% 7 9 10 12 13 15 17 18 20 21 23 24 26 27 29 30 32 33 35 36 38 39 4150% 7 9 10 12 13 15 16 18 19 21 22 24 25 27 28 30 31 33 34 36 37 39 4051% 7 8 10 11 13 14 15 17 18 20 21 23 24 26 27 29 30 32 33 35 36 38 3952% 6 8 9 11 12 14 15 16 18 19 21 22 24 25 26 28 29 31 32 34 35 37 3853% 6 7 9 10 12 13 14 16 17 19 20 21 23 24 26 27 29 30 31 33 34 36 3754% 6 7 8 10 11 13 14 15 17 18 19 21 22 24 25 26 28 29 30 32 33 35 3655% 5 7 8 9 11 12 13 15 16 17 19 20 22 23 24 26 27 28 30 31 32 34 3556% 5 6 8 9 10 12 13 14 16 17 18 19 21 22 23 25 26 27 29 30 31 33 3457% 5 6 7 8 10 11 12 14 15 16 18 19 20 21 23 24 25 27 28 29 30 32 3358% 4 6 7 8 9 11 12 13 14 16 17 18 19 21 22 23 24 26 27 28 29 31 3259% 4 5 6 8 9 10 11 13 14 15 16 17 19 20 21 22 24 25 26 27 29 30 3160% 4 5 6 7 8 10 11 12 13 14 16 17 18 19 20 22 23 24 25 26 28 29 3061% 3 4 6 7 8 9 10 11 13 14 15 16 17 18 20 21 22 23 24 25 27 28 2962% 3 4 5 6 7 9 10 11 12 13 14 15 17 18 19 20 21 22 23 25 26 27 2863% 3 4 5 6 7 8 9 10 11 13 14 15 16 17 18 19 20 21 23 24 25 26 2764% 2 3 4 5 7 8 9 10 11 12 13 14 15 16 17 18 20 21 22 23 24 25 2665% 2 3 4 5 6 7 8 9 10 11 12 13 15 16 17 18 19 20 21 22 23 24 2566% 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 2467% 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 2368% 1 2 3 4 5 6 7 8 9 10 10 11 12 13 14 15 16 17 18 19 20 21 2269% 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 14 15 16 17 18 19 20 2170% 0 1 2 3 4 5 6 7 7 8 9 10 11 12 13 14 15 16 16 17 18 19 20


padi.com A-45

Fraction Depth ImperialHe 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300

10% 69 78 87 96 105 114 123 132 141 150 159 168 177 186 195 204 213 222 231 240 249 258 26711% 68 76 85 94 103 112 121 130 139 148 157 165 174 183 192 201 210 219 228 237 246 254 26312% 66 75 84 93 102 110 119 128 137 146 154 163 172 181 190 198 207 216 225 234 242 251 26013% 65 74 83 91 100 109 118 126 135 144 152 161 170 178 187 196 205 213 222 231 239 248 25714% 64 73 81 90 99 107 116 124 133 142 150 159 167 176 185 193 202 210 219 228 236 245 25315% 63 72 80 89 97 106 114 123 131 140 148 157 165 174 182 191 199 208 216 225 233 242 25016% 62 70 79 87 96 104 112 121 129 138 146 154 163 171 180 188 196 205 213 222 230 238 24717% 61 69 77 86 94 102 111 119 127 135 144 152 160 169 177 185 194 202 210 218 227 235 24318% 60 68 76 84 92 101 109 117 125 133 142 150 158 166 174 183 191 199 207 215 224 232 24019% 59 67 75 83 91 99 107 115 123 131 140 148 156 164 172 180 188 196 204 212 221 229 23720% 57 65 73 81 89 97 105 113 121 129 137 145 153 161 169 177 185 193 201 209 217 225 23321% 56 64 72 80 88 96 104 112 119 127 135 143 151 159 167 175 183 191 198 206 214 222 23022% 55 63 71 79 86 94 102 110 118 125 133 141 149 157 164 172 180 188 196 203 211 219 22723% 54 62 69 77 85 93 100 108 116 123 131 139 146 154 162 170 177 185 193 200 208 216 22324% 53 60 68 76 83 91 98 106 114 121 129 136 144 152 159 167 174 182 190 197 205 212 22025% 52 59 67 74 82 89 97 104 112 119 127 134 142 149 157 164 172 179 187 194 202 209 21726% 51 58 65 73 80 88 95 102 110 117 125 132 139 147 154 162 169 176 184 191 199 206 21327% 49 57 64 71 79 86 93 101 108 115 122 130 137 144 152 159 166 174 181 188 195 203 21028% 48 56 63 70 77 84 92 99 106 113 120 128 135 142 149 156 164 171 178 185 192 200 20729% 47 54 61 69 76 83 90 97 104 111 118 125 132 140 147 154 161 168 175 182 189 196 20330% 46 53 60 67 74 81 88 95 102 109 116 123 130 137 144 151 158 165 172 179 186 193 20031% 45 52 59 66 73 79 86 93 100 107 114 121 128 135 142 148 155 162 169 176 183 190 19732% 44 51 57 64 71 78 85 91 98 105 112 119 125 132 139 146 153 159 166 173 180 187 19333% 43 49 56 63 70 76 83 90 96 103 110 116 123 130 137 143 150 157 163 170 177 183 19034% 42 48 55 61 68 75 81 88 94 101 108 114 121 127 134 141 147 154 160 167 174 180 18735% 40 47 53 60 66 73 79 86 92 99 105 112 118 125 131 138 144 151 157 164 170 177 18336% 39 46 52 59 65 71 78 84 91 97 103 110 116 123 129 135 142 148 155 161 167 174 18037% 38 44 51 57 63 70 76 82 89 95 101 107 114 120 126 133 139 145 152 158 164 170 17738% 37 43 49 56 62 68 74 80 87 93 99 105 111 118 124 130 136 142 149 155 161 167 17339% 36 42 48 54 60 66 73 79 85 91 97 103 109 115 121 127 134 140 146 152 158 164 17040% 35 41 47 53 59 65 71 77 83 89 95 101 107 113 119 125 131 137 143 149 155 161 16741% 34 40 45 51 57 63 69 75 81 87 93 99 104 110 116 122 128 134 140 146 152 158 16342% 33 38 44 50 56 62 67 73 79 85 91 96 102 108 114 120 125 131 137 143 149 154 16043% 31 37 43 49 54 60 66 71 77 83 88 94 100 106 111 117 123 128 134 140 145 151 15744% 30 36 41 47 53 58 64 69 75 81 86 92 97 103 109 114 120 125 131 137 142 148 15345% 29 35 40 46 51 57 62 68 73 79 84 90 95 101 106 112 117 123 128 134 139 145 15046% 28 33 39 44 50 55 60 66 71 77 82 87 93 98 104 109 114 120 125 131 136 141 14747% 27 32 37 43 48 53 59 64 69 75 80 85 90 96 101 106 112 117 122 128 133 138 14348% 26 31 36 41 47 52 57 62 67 73 78 83 88 93 99 104 109 114 119 125 130 135 14049% 25 30 35 40 45 50 55 60 65 71 76 81 86 91 96 101 106 111 116 122 127 132 13750% 24 29 34 39 44 49 54 59 64 69 74 79 84 89 94 99 104 109 114 119 124 129 13451% 22 27 32 37 42 47 52 57 62 66 71 76 81 86 91 96 101 106 111 115 120 125 13052% 21 26 31 36 40 45 50 55 60 64 69 74 79 84 88 93 98 103 108 112 117 122 12753% 20 25 30 34 39 44 48 53 58 62 67 72 77 81 86 91 95 100 105 109 114 119 12454% 19 24 28 33 37 42 47 51 56 60 65 70 74 79 83 88 93 97 102 106 111 116 12055% 18 22 27 31 36 40 45 49 54 58 63 67 72 76 81 85 90 94 99 103 108 112 11756% 17 21 26 30 34 39 43 48 52 56 61 65 70 74 78 83 87 92 96 100 105 109 11457% 16 20 24 28 33 37 41 46 50 54 59 63 67 71 76 80 84 89 93 97 102 106 11058% 14 19 23 27 31 35 40 44 48 52 56 61 65 69 73 77 82 86 90 94 98 103 10759% 13 17 22 26 30 34 38 42 46 50 54 58 63 67 71 75 79 83 87 91 95 99 10460% 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72 76 80 84 88 92 96 10061% 11 15 19 23 27 31 34 38 42 46 50 54 58 62 66 70 73 77 81 85 89 93 9762% 10 14 18 21 25 29 33 37 40 44 48 52 56 59 63 67 71 75 78 82 86 90 9463% 9 13 16 20 24 27 31 35 38 42 46 50 53 57 61 64 68 72 75 79 83 87 9064% 8 11 15 18 22 26 29 33 36 40 44 47 51 54 58 62 65 69 72 76 80 83 8765% 7 10 14 17 21 24 28 31 35 38 42 45 49 52 56 59 63 66 70 73 77 80 8466% 5 9 12 16 19 22 26 29 33 36 39 43 46 50 53 56 60 63 67 70 73 77 8067% 4 8 11 14 17 21 24 27 31 34 37 41 44 47 50 54 57 60 64 67 70 74 7768% 3 6 10 13 16 19 22 26 29 32 35 38 42 45 48 51 54 58 61 64 67 70 7469% 2 5 8 11 14 18 21 24 27 30 33 36 39 42 45 49 52 55 58 61 64 67 7070% 1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67

TRIMIX EQUIVALENT NARCOTIC DEPTH TABLE – IMPERIAL


A-46 padi.com

FractionO2 @1.4 @1.6

70% 10 13

71% 10 13

72% 9 12

73% 9 12

74% 9 12

75% 9 11

76% 8 11

77% 8 11

78% 8 11

79% 8 10

80% 8 10

81% 7 10

82% 7 10

83% 7 9

84% 7 9

85% 6 9

86% 6 9

87% 6 8

88% 6 8

89% 6 8

90% 6 8

91% 5 8

92% 5 7

93% 5 7

94% 5 7

95% 5 7

96% 5 7

97% 4 6

98% 4 6

99% 4 6

100% 4 6


40% 25 30

41% 24 29

42% 23 28

43% 23 27

44% 22 26

45% 21 26

46% 20 25

47% 20 24

48% 19 23

49% 19 23

50% 18 22

51% 17 21

52% 17 21

53% 16 20

54% 16 20

55% 15 19

56% 15 19

57% 15 18

58% 14 18

59% 14 17

60% 13 17

61% 13 16

62% 13 16

63% 12 15

64% 12 15

65% 12 15

66% 11 14

67% 11 14

68% 11 14

69% 10 13


10% 130 150

11% 117 135

12% 107 123

13% 98 113

14% 90 104

15% 83 97

16% 78 90

17% 72 84

18% 68 79

19% 64 74

20% 60 70

21% 57 66

22% 54 63

23% 51 60

24% 48 57

25% 46 54

26% 44 52

27% 42 49

28% 40 47

29% 38 45

30% 37 43

31% 35 42

32% 34 40

33% 32 38

34% 31 37

35% 30 36

36% 29 34

37% 28 33

38% 27 32

39% 26 31

TRIMIX MAXIMUM DEPTHS IN METRES OF SEAWATER


padi.com A-47


70% 33 42

71% 32 41

72% 31 40

73% 30 39

74% 29 38

75% 29 37

76% 28 36

77% 27 36

78% 26 35

79% 25 34

80% 25 33

81% 24 32

82% 23 31

83% 23 31

84% 22 30

85% 21 29

86% 21 28

87% 20 28

88% 20 27

89% 19 26

90% 18 26

91% 18 25

92% 17 24

93% 17 24

94% 16 23

95% 16 23

96% 15 22

97% 15 21

98% 14 21

99% 14 20

100% 13 20


40% 83 99

41% 80 96

42% 77 93

43% 74 90

44% 72 87

45% 70 84

46% 67 82

47% 65 79

48% 63 77

49% 61 75

50% 59 73

51% 58 71

52% 56 69

53% 54 67

54% 53 65

55% 51 63

56% 50 61

57% 48 60

58% 47 58

59% 45 56

60% 44 55

61% 43 54

62% 42 52

63% 40 51

64% 39 50

65% 38 48

66% 37 47

67% 36 46

68% 35 45

69% 34 44


10% 429 495

11% 387 447

12% 352 407

13% 352 407

14% 297 344

15% 275 319

16% 256 297

17% 239 278

18% 224 260

19% 210 245

20% 198 231

21% 187 218

22% 177 207

23% 168 197

24% 160 187

25% 152 178

26% 145 170

27% 138 163

28% 132 156

29% 126 149

30% 121 143

31% 116 137

32% 111 132

33% 107 127

34% 103 122

35% 99 118

36% 95 114

37% 92 110

38% 89 106

39% 85 102

TRIMIX MAXIMUM DEPTHS IN FEET OF SEAWATER


A-48 padi.com

Principles for Surviving a Tec DivePrinciple of Secondary Life Support. You should

have at least two independent sources of anything that keeps

you alive and unhurt: gas supply, depth and decompression

information, buoyancy control, etc. If one fails, you abort the

dive on the other.

Principle of Gas Reserve. You should have ample gas

to handle reasonably foreseeable emergencies and still com-

plete your decompression. This generally means that one third

or more of each gas should be a reserve.Principle of Self Sufficiency. At any point in the dive,

you should be able to complete it independently.Principle of Depth. Your dive plan should account for

narcosis, decompression, oxygen toxicity and gas supply needs

based on a planned depth and a contingency depth (and times)

that you do not exceed.

Principle of Simplicity (KISS principle). Your dive

should be planned as simple as possible, with complexities

eliminated.

Principle of Procedure and Discipline. You follow

the rules and work the procedures without exception on every

dive, no matter how familiar the dive and no matter how much

experience you have. Cutting corners kills.

Product No. 61400 Ver 1.0 (05/03)© Diving Science & Technology, Corp. (DSAT) 2003

Distributed by PADI

010PDE3

Deep Stop Calculation Table

METRIC

Bottom/Prev

Stop

1st Required Stop Depth

Depth 45 42 39 36 33 30 27 24 21 18 15 12 9

90 68 66 65 63 62 60 59 57 56 54 53 51 50

87 66 65 63 62 60 59 57 56 54 53 51 50 48

84 65 63 62 60 59 57 56 54 53 51 50 48 47

81 63 62 60 59 57 56 54 53 51 50 48 47 45

78 62 60 59 57 56 54 53 51 50 48 47 45 44

75 60 59 57 56 54 53 51 50 48 47 45 44 42

72 59 57 56 54 53 51 50 48 47 45 44 42 41

69 57 56 54 53 51 50 48 47 45 44 42 41 39

66 56 54 53 51 50 48 47 45 44 33 41 39 38

63 54 53 51 50 48 47 45 44 42 41 39 38 36

60 53 51 50 48 47 45 44 42 41 39 38 36 35

57 51 50 48 47 45 44 42 41 39 38 36 35 33

54 50 48 47 45 44 42 41 39 38 36 35 33 32

51 48 47 45 44 42 41 39 38 36 35 33 32 30

4845 44 42 41 39 38 36 35 33 32 30 29

4542 41 39 38 36 35 33 32 30 29 27

4239 38 36 35 33 32 30 29 27 26

39

36 35 33 32 30 29 27 26 24

36

33 32 30 29 27 26 24 23

33

30 29 27 26 24 23 21

30

27 26 24 23 21 20

27

24 23 21 20 18

24

21 20 18 17

21

18 17 15

18

15 14

15

12


padi.com A-49

Principles for Surviving a Tec DivePrinciple of Secondary Life Support. You should

have at least two independent sources of anything that keeps

you alive and unhurt: gas supply, depth and decompression

information, buoyancy control, etc. If one fails, you abort the

dive on the other.

Principle of Gas Reserve. You should have ample gas

to handle reasonably foreseeable emergencies and still com-

plete your decompression. This generally means that one third

or more of each gas should be a reserve.Principle of Self Sufficiency. At any point in the dive,

you should be able to complete it independently.Principle of Depth. Your dive plan should account for

narcosis, decompression, oxygen toxicity and gas supply needs

based on a planned depth and a contingency depth (and times)

that you do not exceed.

Principle of Simplicity (KISS principle). Your dive

should be planned as simple as possible, with complexities

eliminated.

Principle of Procedure and Discipline. You follow

the rules and work the procedures without exception on every

dive, no matter how familiar the dive and no matter how much

experience you have. Cutting corners kills.

Deep Stop Calculation Table

IMPERIAL

Product No. 60400 Ver 1.0 (05/03)© Diving Science & Technology, Corp. (DSAT) 2003

Distributed by PADI

010PDE3

Bottom/Prev

Stop

1st Required Stop Depth

Depth 150 140 130 120 110 100 90 80 70 60 50 40 30

300 225 220 215 210 205 200 195 190 185 180 175 170 165

290 220 215 210 205 200 195 190 185 180 175 170 165 160

280 215 210 205 200 195 190 185 180 175 170 165 160 155

270 210 205 200 195 190 185 180 175 170 165 160 155 150

260 205 200 195 190 185 180 175 170 165 160 155 150 145

250 200 195 190 185 180 175 170 165 160 155 150 145 140

240 195 190 185 180 175 170 165 160 155 150 145 140 135

230 190 185 180 175 170 165 160 155 150 145 140 135 130

220 185 180 175 170 165 160 155 150 145 140 135 130 125

210 180 175 170 165 160 155 150 145 140 135 130 125 120

200 175 170 165 160 155 150 145 140 135 130 125 120 115

190 170 165 160 155 150 145 140 135 130 125 120 115 110

180 165 160 155 150 145 140 135 130 125 120 115 110 105

170 160 155 150 145 140 135 130 125 120 115 110 105 100

160150 145 140 135 130 125 120 115 110 105 100 95

150140 135 130 125 120 115 110 105 100 95 90

140130 125 120 115 110 105 100 95 90 85

130

120 115 110 105 100 95 90 85 80

120

110 105 100 95 90 85 80 75

110

100 95 90 85 80 75 70

100

90 85 80 75 70 65

90

80 75 70 65 60

80

70 65 60 55

70

65 60 55 50

60

55 50 45

50

45 40


A-50 padi.com

OMITTED DECOMPRESSION – from deeper than 6 m/20 ft,

no DCS symptoms• Return to stop depth as quickly as possible (less than five minutes

ideally).• Decompress according to schedule up to and including

12 m/40 ft stop.• Extend 9 m/30 ft stop and all shallower stops by 1.5 times normal

deco time.• Extend final stop beyond 1.5 times deco time as much as practicable,

gas allowing.

OXYGEN TOXICITY – CNS symptoms underwater• Immediately switch to low oxygen gas (back gas or travel gas)

• Ascend as much as possible without compromising decompression.

• Stay on low oxygen gas for at least 15 minutes after all symptoms subside.• Keep PO2 as low as possible (gas choice/depth) for the

deco schedule.

_______________________________________________________

_______________________________________________________

_______________________________________________________

_______________________________________________________

_______________________________________________________

_______________________________________________________

_______________________________________________________

_______________________________________________________

_______________________________________________________

_______________________________________________________

Product No. 60402 Ver. 1.0 (05/03)© Diving Science & Technology Corp. (DSAT) 2003

Distributed by PADI

010PDE3

Emergency Procedures Slate

MISSED DECOMPRESSION STOP – Immediate Redescent

• Immediately redescend (within one minute if possible).

• Complete the stop plus one minute.

• Decompress according to normal schedule.

MISSED DECOMPRESSION STOP – Redescent Not Possible

• Stay at the next stop for combined time of both stops.

• Extend 6 m/20 ft stop and final stop by 1.5 times normal deco time.

DELAY IN ASCENT – Before Reaching First Stop

• Add delay to bottom time and decompress on new schedule.

• Extend final stop as much as practicable, gas allowing.

DELAY IN ASCENT – Between Stops

• Not critical if not longer than two-three minutes.

• Do not count delay time as deco time.


OMITTED DECOMPRESSION – from 6 m/20 ft or shallower,

no DCS symptoms and return to stop in less than one minute

• Complete decompression as scheduled.


OMITTED DECOMPRESSION – from 6 m/20 ft or shallower,

no DCS symptoms and return more than one minute

• Extend 6 m/20 ft stop and final stop by 1.5 times normal deco time.

• Extend final stop beyond 1.5 times deco time as much as practicable,

gas allowing.

padi.com

G Product No. 10266 Version 1.1 (07/03) © International PADI, Inc. 2003

Liability Release and Express Assumption of Risk for Technical Diving

Please read carefully, fill in all blanks and initial each paragraph before signing.

I, _________________________________________, HEREBY DECLARE THAT I AM A CERTIFIED (Participant)

SCUBA DIVER, TRAINED IN SAFE DIVING PRACTICES INCLUDING THE USE OF NITROX, AND AMAWARE OF THE INHERENT HAZARDS OF SCUBA DIVING.

_____ I further state that I am an experienced diver and have been certified by the followingtraining organization(s): ____________________________ and that I am aware of the requiredcertification or equivalent experience required to participate in technical diving activities. I havebeen a certified diver since __________, and have been diving for ________ years, with a total ofapproximately ________ dives, to a maximum depth of _________ metres/feet (circle one).

_____ I further declare that I have been advised and thoroughly informed of the inherent hazardsof participating in technical and recreational scuba diving activities, and in consideration of beingallowed to participate in this activity, I hereby assume all risks in connection with said activity, forany harm, injury or damage that I may suffer while I am participating in this activity, including allrisks connected therewith, whether foreseen or unforeseen.

_____ I further declare that I am properly trained, thoroughly informed, and completely under-stand the inherent hazards of Technical Scuba Diving activities, including the risk of serious injuryor death. Further, I understand that diving with compressed air, oxygen-enriched air (nitrox) trimix,and 100 percent oxygen involves certain inherent risks that include but are not limited to: decom-pression sickness, embolism, oxygen toxicity, inert gas narcosis, marine life injuries, fire and/orexplosion hazards, and barotrauma or hyperbaric injuries which can occur and require treatmentin a recompression chamber. I further understand that Technical Scuba Diving activities may beconducted at a site that is remote, either by time or distance or both, from such a recompressionchamber. I still choose to participate in such Technical Scuba Diving activities, despite the possi-ble absence of a recompression chamber in proximity to the dive site.

_____ I further declare that I understand Technical Diving involves risks which exceed thoseencountered in recreational scuba diving. These risks may include but are not limited to: depthswhich exceed the limits of recreational diving; decompression procedures; over-head environ-ments and/or the risk of entanglement which may prevent direct ascent to the surface in the eventof an emergency; sudden loss of visibility; necessity for computing both nitrogen and oxygenloading to plan dives; and the need for specialized training, equipment, and planning for differenttypes of Technical Scuba Diving. I understand that Technical Scuba Diving may involve a greaterrisk of serious injury or death than recreational scuba diving, and I assume the risk of this activity.

A-51

_____ I understand that I AM SOLELY RESPONSIBLE FOR ENSURING MY OWN SAFETY DURINGPARTICIPATION IN THIS ACTIVITY and agree that: 1) the facility(ies), organization(s) or supervisorypersonnel offering this activity, ___________________, or their employees; 2) the organizers orpromoters of this event; 3) Diving Science and Technology Corp. (DSAT); and 4) International PADIInc. (PADI), its affiliate or subsidiary corporations, any of their respective employees, officers,agents or assigns (1 through 4 hereinafter referred to as "Released Parties"), may not be held liableor responsible in any way for any injury, death or other damages to me or my family, heirs, orassigns, that may occur as a result of my participation in this activity, or as a result of the negligenceof any party, including the Released Parties, whether passive or active.

_____ I declare that I am in good mental and physical fitness for diving, that I am not under theinfluence of alcohol, nor am I under the influence of any drugs that are contraindicated to diving. IfI am taking any medication, I declare that I have seen a physician and have approval to dive underthe conditions of this activity while under the influence of the medication/drugs.

_____ I understand that all types of scuba diving, including Technical Diving, are physically strenu-ous activities and that I will be exerting myself during this activity; and if I am injured as a result ofheart attack, panic, hyperventilation, etc. that I assume the risk of said injuries and that I will nothold the Released Parties responsible for the same.

_____ I will inspect all of my equipment prior to every use during this activity, ensuring that I haveall necessary equipment, and that it is functioning properly. I will not hold the Released Partiesresponsible for my failure to inspect my equipment prior to diving.

_____ I further save and hold harmless the Released Parties from any claim or lawsuit for personalinjury, property damage or wrongful death, by me, my family, estate, heirs, or assigns, arising out ofmy participation in this activity, including both claims arising during the activity or after I completethe activity.

_____ I further declare that I am of lawful age and legally competent to sign this liability release,or that I have acquired the written consent of my parent or guardian. I further agree that if any por-tion of this Agreement is held to be invalid for any reason that the remaining provisions shallremain in full force and effect.

I, ______________________________________, understand and agree that the terms hereinare contractual and not a mere recital, that this instrument is a legally binding document,and that I have signed this document of my own free act, after reading and understandingthe entire Liability Release and Express Assumption of Risk agreement.

__________________ _______________________________________________________(Date) (Signature of Participant)

__________________ _______________________________________________________(Date) (Signature of Parent or Guardian if applicable)

__________________ _______________________________________________________(Date) (Witness)

padi.comA-52

Tec Diver Statement of Understanding and Learning Agreement

This statement informs you of hazards, risks and your responsibilities for participating in the DSAT Tec Diver

course. Your signature acknowledges that you accept these risks and responsibilities.

I, ___________________________________________________, understand that as a DSAT Tec Diver I should:

1. Maintain good mental and physical health for diving.Refrain from being under the influence of alcohol ordrugs when tec diving. Stay proficient in divingskills, in particular, the skills required for certifica-tion as a DSAT Tec Diver.

2. Engage only in diving activities consistent with mytraining and experience.

3. Use complete, well-maintained, reliable equipmentfor which I have appropriate training.

4. Adhere to the team diving concept, but always beprepared to complete any dive without the assis-tance of a team mate. Although self sufficient, theresponsible tec diver dives as part of a team andadheres to team diving principles.

5. Maintain the proper attitude during training in whichI agree to:

• Follow the instructor’s directions and dive plansstrictly, and not to separate from the instructor ormy dive team.

• Refrain from tec diving outside this course until I amfully qualified and certified.

• Accept the risk for this type of diving, and for spe-cific risks unique to each dive environment, and toimmediately notify the instructor if this riskbecomes intolerable for me.

• Recognize the desirability of carrying diver accidentinsurance that covers tec diving (if available in mylocal area), and recognize that my instructor mayrequire me to have it.

6. Demonstrate self sufficiency – plan each dive asthough it will be necessary to make the dive andhandle all emergencies alone.

7. Demonstrate discipline and an attitude consistentwith responsible technical diving – I will not cut cor-ners, bend the rules, disregard dive plans, omit safe-ty equipment or exceed the limits of my training.

8. Obtain an orientation when diving in new environ-ments.

9. Know, obey and respect local diving laws and regula-tions including private land owner relations.

10. Accept the responsibility for my personal safety,while accepting and acknowledging the risks, anddemands tec diving imposes.

11. Stay informed on and dive according to the stateof the art in diving, tec diving, dive rescue, diveequipment and other influences on my safety as atec diver.

12. Accept that technical scuba diving has many gen-eral risks and hazards that either don’t exist inrecreational diving, or aren’t as severe, including:

• No direct access to the surface in an emergencydue to decompression requirements.

• Hypoxia/hyperoxia resulting from switching to thewrong gas, which can lead to drowning.

• Narcosis, which can lead to poor judgment/baddecisions that can cause an accident.

• DCS due to improper gas analysis, missed decostops, loss of deco gas and individual susceptibili-ty. DCS can cause permanent injury or death.

• Omitted procedures due to task loading, whichcan lead to accidents, DCS, air embolism, oxygentoxicity, or drowning.

• Drowning or air embolism due to BCD failure.• Extensive equipment requirements with redundant

configurations, which can lead to ergonomic com-plexity, increased risk of error and a physical bur-den.

13. I accept that a significant difference exists betweenrecreational scuba diving and technical scuba div-ing, and that in technical scuba diving, even if youdo everything right, there is still a higher inherentpotential for an accident leading to permanentinjury or death.

14. I accept that physical fitness affects my perform-ance and ability as a tec diver. Lack of the physicalfitness required can affect my safety by limiting myability to respond to an emergency, or by directlyleading to injuries. It is my responsibility to stay fitto dive, and to dive with the limits of my fitness.

I have read the above statements and have had any questions answered to my satisfaction. I understand the impor-tance and purpose of these practices and recognize they are for my own safety and well being.

I understand that failing to ahere to the above statements will put me at risk, and may be grounds for my dismissalfrom the Tec Deep Diver course. I acknowledge that the instructor is not permitted to and will not certify me if Idon’t meet all course performance requirements or if I demonstrate an attitude or behavior incompatible withresponsible technical diving practices.

__________________________________________________ ___________________________Participant Signature Day/Month/Year

padi.com

G Product No. 10267 Version 1.0 (07/03) © International PADI, Inc. 2003A-53


A-54 padi.com

SAMPLE TRIMIX DECAL

Product No. 50075 Ver. 1.0 (05/03) 010PDE3 © International PADI, Inc. 2003

OXYGEN HELIUMTMxMax Depth

Diver

Appendix

Sports

Transcript of Appendix