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OHS Research
Research at the IRSST
Reference Framework
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IRSST's Production
Magazine and Newsletter
Scientific Watch
Documentation Center
Useful Links
Laboratory Services
Laboratories
Analysis and Testing Services
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Masks Efficacy Evaluation
Workplace Air Contaminants
Slip Resistance Test for Protective Footwear
Loan, Calibration and Repairs
Recognition Programs
CQ Fibres
Quality Control of Fiber Counts
CQ Vrac
Recognized Laboratories
Interlaboratory quality
control program
Guides and Tools
Instruments and Sampling Material
Register
Research Fund and Partnerships
Research Fund and Partnerships
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Scholarships
Master’s Scholarship and Supplement
Doctoral Scholarship and Supplement
Postdoctoral Fellowship
Research partnerships
Institute
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substance
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substance
August 26, 2025
Selenium hexafluoride (as Se)
French name in the regulation:
Sélénium, hexafluorure de
CAS :
7783-79-1
Exposure Standards in RROHS regulation
Permissible exposure values (PEV)
ppm
mg/m
3
f/cc
Notes
TWAEV
0,05
0,16
-
-
STEV
-
-
-
-
Ceiling
-
-
-
-
Carcinogenicity
Sensitizer
Simple asphyxiant
Percutaneous
Prohibited use
Prohibited recirculation
Minimum exposure
Explosion hazard
Ototoxic
TWA adjustment for unusual work schedules
IV
: Daily or weekly adjustment ( the more stringent of the two)
CNESST – Toxicological Index Service
Consult REPTOX file:
Selenium hexafluoride (as Se)
Analysis:
Sélénium, hexafluorure de (exprimé en Se)
Recommended method by the IRSST:
Method: OSHA - IMIS2231
Sampling protocol
Sampling device:
Parameters:
Flow rate: -
TWA sampling volume: -
STEL sampling volume: -
Remarks:
This substance is not analyzed by our laboratories. It might be possible that the analysis be performed by another laboratory. Please contact the IRSST before sampling.
Analytical protocol
Remarks:
No supporting reference is suggested for this substance.
Reference
OSHA, Chemical Information Manual. IMIS2231: Selenium Hexafluoride (as Se), 1993.
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