AIHce 2010 - Design of a Test Laboratory for Chemical ...€¦ · Design of a New Laboratory for...
Transcript of AIHce 2010 - Design of a Test Laboratory for Chemical ...€¦ · Design of a New Laboratory for...
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Design of a New Laboratoryfor Chemical Challenge Testing of
Respirator Cartridges, Canisters, and Filters
C.R. (Gus) Manning, PhD, CIH
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Miller-Nelson, a leading independent Lab for 3 decades Founded by Gary O. Nelson (Fellow AIHA)
Miller-Nelson Lab acquired by Assay Technology (2004)
Incorporated into existing Analytical Lab facility tasks performed are different from an Analytical Lab
Eventually * we would need to design a more appropriate Lab
___________________________* 2009
Chemical Challenge TestingBackground
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AT / Miller-Nelson LabTypical Services
Respirator & Filter Testing (Chemical Challenge)Pre-Certification Test Data for APR Mfr
– Submitted to NIOSH
3rd Party QC Test– for Manufactured Respirator
Special Challenge Testing– Challenge Agents additional to those included in
NIOSH certification testing
Special Projects– Filters and Adsorbents
___________________________APR = Air Purifying Respirator
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Chemical ChallengeRespirator & Filter Testing
Characteristics
Flowing Toxic Stream with plumbing issues– Fume removal by hood
Control Flow, Concentration, Humidity, Temp– Complex Work
Continuous Monitoring with multiple Instruments– “Instrument Cluster”
Lots of Utilities required– Power, Water, Nitrogen, Air, Compressed Gases
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Lab Design ConsiderationsPreliminary
SpacePerform 3 - 4 tests at one time
Health & SafetyPrevent Exposures, Spills, and Explosions
Quick Set-Up and Take -DownQuick Changeover for Short Runs
TestingAccommodate Instrument Cluster
– 5 or more Instruments used in 1 test
StorageSafe gas storage in or near Lab
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Assay Technology Facility(Livermore, California)
10,550 sq. ft.
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EntireFacility
1382 Stealth StLivermore, CA
10,550 Sq. ft. 340ft2
960ft2
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Components ofthe
Instrument Cluster
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MNR Flow GeneratorHCS-401
25” x 25” x 12”
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IR Spectrometer(long path vapor cell)
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Electrochemical Monitors
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Mass Flow Controller
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RH Vessel Cal Vessel
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Schematic Set-Up for Test
IR
TapeMonitorGlass Tube
NH3Flow
Switch
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Lab Bench Unit(criteria)
Within Fume Hood environment– May leak toxic vapors
Can Contain “Instrument Cluster”– Provides power, water, gas, & air
Rugged & Robust – Physically & chemically
Semi-Portable – Re-arrange for new experiments
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Lab Bench Layout(Side View)
IRIR
Recorder
FID
RHVessel
CalVessel
TestCell
MFCSyringePump
6'
Compressed Air5'
MNR FlowGenerator
E ChemMonitor
Nitrogen
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Lab BenchLayout(Top View)
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WorkStation
(model)
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Work Station(example)
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Lab BenchLayout(Top View)
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Lab Bench Layout(Side View)
IRIR
Recorder
FID
RHVessel
CalVessel
TestCell
MFCSyringePump
6'
Compressed Air5'
MNR FlowGenerator
E ChemMonitor
Nitrogen
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Lab Bench(except for Hood)
E ChemMonitor
Recorder MFCSyringePump
Test Cell
IRSpec
IRSpec
MNR FlowGenerator
RHVessel Cal
Vessel
GasCyl
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Lab Bench(complete view)
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Lab Bench(close-up)
A
E CD
BF
G
I
H
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Overall Lab Arrangement(Integration of Bench Units)
Need 4-5 separate Test Benches– 2-5 tests simultaneously
Comply with Air Handling Constraints – Share Hood Ventilation Fans
Spaced as close as practical– Limited to ca. 1,000 sq.ft
Open, Portable Layout – Re-arrange for new experiments
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Lab Facility1382 Stealth
Livermore, CA
AT MNR LabRev 12-08-091,250 sq.ft.
1382 Stealth StLivermore, CA
AnalyticalLab
MNRLAB E1
E1
Diluted Gas Cylinders2% Hydrogen Cyanide1.5% Cyanogen Chloride0.9% Phosphine0.2% Phosgene7% Chlorine30% Carbon Monoxide7% Hydrogen Sulfide
Solvents(1, 2, 4 L. bottles)AcetonitrileDichloromethaneCyclohexaneMethanolEthanolGlyceroletc.
T
E2
E3
E3
5'
2.5'
5'
5'
5.5'
E4
E 4
13'
8.5'
E2
2.5'
Ovn
6'
13'
E5
4'
10'
Ovn
GC GC
GCGC
40'
24'
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MNR Lab(close-up)
AT MNR LabRev 12-08-09
1,250 sq.ft.1382 Stealth StLivermore, CA
AnalyticalLab
MNRLAB
Ho
od
Hoo
d
E1
E1
A
Diluted Gas Cylinders2% Hydrogen Cyanide1.5% Cyanogen Chloride0.9% Phosphine0.2% Phosgene7% Chlorine30% Carbon Monoxide7% Hydrogen Sulfide T
E2
E3
E3
5'
2.5'
5'
5'
5.5'
E4
E 4
13'
8.5'
E2
2.5'
10'
GC GC
GCGC
40'
24'
Stor
age
Lab
Ben
ch Test A
Test B
Test C
Test D
Test EGas Cabinets
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AT Respirator and FilterChemical Challenge Test Lab
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Chemical Challenge Testing Benches(+ Sink)
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Lab Center Aisle
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Set-Up Bench & Storage
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AT Respirator and FilterChemical Challenge Test Lab
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Finis
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Ammonia Testing
Challenge Level at 1000 mg/M3– Same as some NIOSH tests– Monitor by IR
Breakthrough Monitoring at 17 mg/M3– Monitor by Colorimetric Tape Method
Beyond Breakthrough (up to 170 mg/M3) – Monitor by IR
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Dimethylmethylphosponate (DMMP) Testing
Challenge Level at 3000 mg/M3– There is no NIOSH test– Verify Gravimetrically & by FID
Breakthrough Monitoring (0.04 mg/M3)– Monitor by Flame Photometric Detector *
Beyond Breakthrough (0.4 mg/M3) – Monitor by FID
___________________________________________________(*) We have only found FPD available as part of a GC-FPD
(Need to purchase soon to complete tests on schedule.)
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Nitrogen Dioxide Testing
Challenge Level at 376 & 188 mg/M3– 100 and 200 ppm– Similar to NIOSH tests– Verify by Titration or Monitor by IR
Breakthrough Monitoring– 9 mg/M3 (as NO2) or 30 mg/M3 (as NO)– Monitor by Electrochemical Monitors
Beyond Breakthrough (9/30 mg/M3) – Interrupt Challenge and Monitor by FID
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Hydrogen Cyanide Testing
Challenge Level at 4000 mg/M3 – Higher than NIOSH tests– Verify by Titration
Breakthrough Monitoring– 5 mg/M3 HCN and 5 mg/M3 (CN)2– Monitor by Colorimetric Tape & FID
Beyond Breakthrough ( up to 50 mg/M3) – Monitor by FID