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OHS Research
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Reference Framework
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Magazine and Newsletter
Scientific Watch
Documentation Center
Useful Links
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Analysis and Testing Services
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Slip Resistance Test for Protective Footwear
Loan, Calibration and Repairs
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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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substance
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substance
October 16, 2025
Coal tar pitch volatiles, as benzene solubles
French name in the regulation:
Brai de goudron de houille volatile (fraction soluble dans le benzène)
CAS :
65996-93-2
Exposure Standards in RROHS regulation
Permissible exposure values (PEV)
ppm
mg/m
3
f/cc
Notes
TWAEV
-
0,2
-
-
STEV
-
-
-
-
Ceiling
-
-
-
-
Carcinogenicity
C1
Sensitizer
Simple asphyxiant
Percutaneous
Prohibited use
Prohibited recirculation
Minimum exposure
Explosion hazard
Ototoxic
TWA adjustment for unusual work schedules
III
: Weekly adjustment
CNESST – Toxicological Index Service
Consult REPTOX file:
Coal tar pitch volatiles, as benzene solubles
Analysis:
Fraction soluble dans le benzène
Method: IRSST - 201
Sampling protocol
Sampling device:
Sampling media required:
#IRSST
Description
911
GF filter, 37 mm, 0.8µm
Parameters:
Flow rate: 2 L/min
TWA sampling volume: 960 L
STEL sampling volume: -
Remarks:
After sampling, the samples must be stored in the freezer protected from light. The gravimetric result is used to establish the compliance with the standard. Simultaneous sampling and analysis of PAHs are possible if the complete sampling train is used (see the example of benzo(a)pyrene).
Analytical protocol
Principle:
Gravimetric measurement (Grav)
Precision (%):
8,7
Minimum reported value:
50 µg
Reference
IRSST. "Analyse du brai de houille/fumée". Méthode 201. Non publiée.
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