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OHS Research
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Magazine and Newsletter
Scientific Watch
Documentation Center
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Slip Resistance Test for Protective Footwear
Loan, Calibration and Repairs
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CQ Fibres
Quality Control of Fiber Counts
CQ Vrac
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Interlaboratory quality
control program
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Instruments and Sampling Material
Register
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substance
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substance
September 18, 2025
Halothane
French name in the regulation:
Halothane
CAS :
151-67-7
Synonyms:
Bromo-2 chloro-2 trifluoro-1,1,1 éthane
Exposure Standards in RROHS regulation
Permissible exposure values (PEV)
ppm
mg/m
3
f/cc
Notes
TWAEV
50
404
-
-
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:
Halothane
Analysis:
Halothane
Method: IRSST - 266-2
Sampling protocol
Sampling device:
Sampling media required:
#IRSST
Description
2120
Activated charcoal tube 100/50 mg
Parameters:
Flow rate: Max: 0,2 L/min
TWA sampling volume: 5 L
STEL sampling volume: -
Remarks:
Halothane must be specifically sampled due to the specific analysis performed.
Analytical protocol
Principle:
Gas chromatography with flame ionization detection (GC-FID)
Precision (%):
0,7
Minimum reported value:
41 µg
Remarks:
However, simultaneous sampling and analysis of isoflurane and enflurane are possible.
Reference
IRSST. "Analyse de l'halothane dans l'air". Méthode 266-2. Méthodes analytiques. Montréal: IRSST, 1995.
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