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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
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Publications and Tools
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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Master’s Scholarship and Supplement
Doctoral Scholarship and Supplement
Postdoctoral Fellowship
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substance
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substance
September 10, 2025
Benzoyl peroxide
French name in the regulation:
Peroxyde de benzoyle
CAS :
94-36-0
Exposure Standards in RROHS regulation
Permissible exposure values (PEV)
ppm
mg/m
3
f/cc
Notes
TWAEV
-
5
-
-
STEV
-
-
-
-
Ceiling
-
-
-
-
Carcinogenicity
Sensitizer
Simple asphyxiant
Percutaneous
Prohibited use
Prohibited recirculation
Minimum exposure
Explosion hazard
Ototoxic
TWA adjustment for unusual work schedules
1B
: No adjustment
CNESST – Toxicological Index Service
Consult REPTOX file:
Benzoyl peroxide
Analysis:
Peroxyde de benzoyle
Recommended method by the IRSST:
Method: NIOSH - 5009
Sampling protocol
Sampling device:
Mixed cellulose ester filter
Parameters:
Flow rate: 1-3 L/min
TWA sampling volume: 400 L
STEL sampling volume: -
Remarks:
Contact the IRSST before sampling. Keep the sampled cold during transport. Loss of 9% after one week at 25°C.
Analytical protocol
Principle:
High performance liquid chromatography with UV detection (HPLC-UV)
Reference
NIOSH Manual of Analytical Methods. 4th ed. Method 5009 : Benzoyl Peroxide. Cincinnati, NIOSH, 1994.
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