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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
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Research Fund and Partnerships
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substance
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substance
August 28, 2025
Silicon carbide (non fibrous) (Pr)
French name in the regulation:
Silicium, carbure de (non fibreux) (Pr)
CAS :
409-21-2
Exposure Standards in RROHS regulation
Permissible exposure values (PEV)
ppm
mg/m
3
f/cc
Notes
TWAEV
-
3
-
1
;
Pr
STEV
-
-
-
-
Ceiling
-
-
-
-
Carcinogenicity
Sensitizer
Simple asphyxiant
Percutaneous
Prohibited use
Prohibited recirculation
Minimum exposure
Explosion hazard
Ototoxic
TWA adjustment for unusual work schedules
Undetermined
CNESST – Toxicological Index Service
Consult REPTOX file:
Analysis:
Weight measurement for inhalable and respirable dusts
Method: IRSST - 424
Sampling protocol
Sampling device:
Sampling media required:
#IRSST
Description
924
Plastic IOM, PVC filter, 5 µm, 25 mm
Parameters:
Flow rate: 2,0 L/min
TWA sampling volume: 480 L
STEL sampling volume: -
Analytical protocol
Principle:
Gravimetric measurement (Grav)
Remarks:
The minimum reported value (MRV) is 60 µg for respirable dusts and 200 µg for inhalable dusts. The analytical uncertainty (CVa) is 2.3% for respirable dusts and 3.4% for inhalable dusts. Additional information is available in Info-Labo
1991-03
and in Info-Labo
2019-06
. The weight measurement method for dusts is by definition non-specific.
Reference
IRSST. "Détermination simultanée des poussières de fraction respirable et inhalable dans l'air". Méthode 424. Non publié.
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