Hazmat w Scba

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Hazmat (Hazardous Materials) w

SCBA Training

By

Lim Yee Teng

25 February 2011


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Introduction

Definition of Hazardous Materials (Hazmat)

Any substances such as

Toxic industrial chemicals (TIC)

Chemical warfare agent (CA) Biological agent (BA)

Radioactive materials

Fire & explosives

that when released from its enclosure may pose

unreasonable risks to Health, Safety, Property andEnvironment

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Role of HAZMAT ERTs

To response to Hazmat emergencies

To contain the impact

To identify the hazmat

To isolate or confine the hazards To mitigate the hazards

To return the situation to normalcy ASAP

To decontamination

Perform rescue and evacuation

Apply first aid or medical treatment

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Role of HAZMAT ERTs

Hazmat emergency response work is extremely

dangerous

Always assume a worst-case scenario and place

personal safety first

Always be prepare

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Incident Priorit ies

Always protect life:

Save lives

Minimise injuries

Protect environment:

Stabilisation of the incident

Mitigate the impact

Protect property

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Rule of thumb

To determine the distance to

hazmat:

If you can see the incidentaround your thumb, you are

too close.

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Where do you Stand?

Standing too close, you may be at risk.

Being too far away, you are ineffective

There are only 3 basic zone areas in which you can standin an event of emergency:

1.Cold Zone = Safe Zone

2.Warm Zone = Unsafe Zone

3.Hot Zone = Dangerous Zone

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The 3 Basic Zone Area

1. Cold Zone = Safe Zone

No harmful effects from the hazardous materials

exist at the present time

2. Warm Zone = Unsafe Zone (PPE needed)

Atmospheres or conditions that will cause harm if

you stay for a prolonged period of time

3. Hot Zone = Dangerous Zone

Situations or conditions that are immediate threat

to life and health This atmosphere could be deadly and result in

catastrophic events

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Site Management & Control

Site management refers to management of the physical

layout of the incident

The key to good site management is to isolate and deny

entry and call for help

If you do nothing else in an event, always control the

incident site. If no one can get close, no one get hurt

A cautious approach is always the best way to respond

to any emergency

To stay alive, recognise and identify the hazardousmaterials

If you dont know, dont go

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Health Effect Harm

Persons who have contact with hazardous materials may

experience negative health effects because the

chemicals interfere with normal function.

Immediately Dangerous to Life or Health (IDLH)

Threshold Limit Value Short-Term Exposure Limit

(TLV/STEL) safety exposed for 15 minutes period

Threshold Limit Value Time-Weighted Average

(TLV/TWA) - safety exposed for periods of 8 hours per

day, 40 hours per week Emergency Respond Planning Guideline 2 (ERPG-2) -

safety exposed for 1 hour w/o adverse effects

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Spill Kits Absorbent

What colour is use for acids, bases and solvents?

Pink

What colour is use for oil and hydrocarbons?

Black

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National Fire Protection Association (NFPA)Chemical Hazard Labels

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Hazard Labels

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Hazard Labels

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Why wear BA Set?

Two main factors which make an atmosphere unsafe to

breathe

Oxygen deficiency

Presence of toxic gas, vapour, mist, or dust

A person can usually only hold their breath for under a

minute, especially if undertaking some form of physical

activity

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Why wear BA Set?

The presence of an irritant gas may cause you to sneeze

or gasp in a matter of seconds.

It is therefore highly dangerous to enter a toxic or oxygen-deficient atmosphere without the appropriate protection

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COMPONENTS OF BA SET

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COMPONENTS OF BA SET

A cylinder of air under pressure

A face mask

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COMPONENTS OF BA SETA cylinder harness

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WEARING OF BA SETFull face piece donning procedure

Open the cylinder valve

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WEARING OF BA SET

Fully extend the head straps

and placed out over the

front of the face piece

Place your chin into the chin

cup and hold the face piece

snug against your face

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WEARING OF BA SETPull the head straps down

over the back of your head,

brushing away any hair from

the sealing surface.

Yourfirst breath will activate

the system, letting you breathe

freely.

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WEARING OF BA SETPull straight back on the head

straps to tighten.

Start with the lower chin straps

and work your way up to the

top straps

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WEARING OF BA SET

Positive Pressure / Regulator Test

Insert two fingers between your

cheek and the face piece, and

gently lift the face piece away

A good outward flow of air indicates

the face piece pressure is positive

After removing your finger to reseal the face piece, thereshould be no air leaking from the pressure-demand valve

or face piece

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WEARING OF BA SET

Emergency Bypass Test

Open the pressure-demand

valve by rotating the

emergency by-pass knob

There should be a constant

flow of air into the face piece

Turn the knob back to theclosed position.

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SAFETY TIPSBreathing apparatus must always be put on in fresh air

and removed in fresh air

Nobody is permitted to begin usage of a set unless thecylinder is at least 80 % full

As soon as the whistle sounds, the wearer must cease

work immediately, go into fresh air and remove the set

You should never exert yourselfmore than necessary

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SAFETY TIPSLearn to pace yourselfso that you will not exhaust easily

and use air extremely quickly

Care must be taken not to produce any sparks ininflammable atmospheres (e.g. solvent spills)

The simple action of switching the light on or off may be

enough to trigger an explosion

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Q & A

Thank You

25 February 2011

Hazmat w Scba

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