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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
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Scholarships
Master’s Scholarship and Supplement
Doctoral Scholarship and Supplement
Postdoctoral Fellowship
Research partnerships
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substance
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substance
August 26, 2025
Ketene
French name in the regulation:
Cétène
CAS :
463-51-4
Synonyms:
Ketene; Éthinone
Exposure Standards in RROHS regulation
Permissible exposure values (PEV)
ppm
mg/m
3
f/cc
Notes
TWAEV
0,5
0,86
-
-
STEV
1,5
2,6
-
-
Ceiling
-
-
-
-
Carcinogenicity
Sensitizer
Simple asphyxiant
Percutaneous
Prohibited use
Prohibited recirculation
Minimum exposure
Explosion hazard
Ototoxic
TWA adjustment for unusual work schedules
II
: Daily adjustment
CNESST – Toxicological Index Service
Consult REPTOX file:
Ketene
Analysis:
Cétène
Recommended method by the IRSST:
Method: NIOSH - S92
Sampling protocol
Sampling device:
Glass fritted tip impinger containing 10 mL of hydroxylammonium chloride
Parameters:
Flow rate: 1 L/min
TWA sampling volume: 50 L
STEL sampling volume: 15 L
Remarks:
An impinger containing toluene and placed ahead of the main impinger can minimize the interference of the acetic anhydride. Contact the IRSST before sampling.
Analytical protocol
Principle:
Colorimetry (Colo)
Remarks:
Any compound containing an R-CO group such as esters, acid chlorides and anhydrous acids may cause interferences.
Reference
NIOSH Method S92: Ketene, 1975.
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