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IRSST - Institut de recherche Robert-Sauvé en santé et en sécurité du travail
OHS Research
Research at the IRSST
Reference Framework
Scientists Directory
Publications and Tools
IRSST's Production
Magazine and Newsletter
Scientific Watch
Documentation Center
Useful Links
Laboratory Services
Laboratories
Analysis and Testing Services
Laboratory Methods
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
Grants
Scholarships
Master’s Scholarship and Supplement
Doctoral Scholarship and Supplement
Postdoctoral Fellowship
Research partnerships
Institute
About
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substance
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substance
October 15, 2025
Chlorine trifluoride
French name in the regulation:
Chlore, trifluorure de
CAS :
7790-91-2
Exposure Standards in RROHS regulation
Permissible exposure values (PEV)
ppm
mg/m
3
f/cc
Notes
TWAEV
-
-
-
-
STEV
-
-
-
-
Ceiling
0,1
0,38
-
-
Carcinogenicity
Sensitizer
Simple asphyxiant
Percutaneous
Prohibited use
Prohibited recirculation
Minimum exposure
Explosion hazard
Ototoxic
TWA adjustment for unusual work schedules
1A
: No adjustment
CNESST – Toxicological Index Service
Consult REPTOX file:
Chlorine trifluoride
Analysis:
Chlore, trifluorure de
Recommended method by the IRSST:
Method: OSHA - ID110
Sampling protocol
Sampling device:
Mixed cellulose ester filter with sodium carbonate treated pad
Parameters:
Flow rate: 1,5 L/min
TWA sampling volume: 90 L
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
Principle:
Ion specific electrode (SE)
Reference
OSHA Analytical Methods, Fluoride (F- and HF) in workplace atmospheres, Method ID110, 1991.
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