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November 22, 2024

According to Decree 280-2024 published on February 28, 2024, in the Gazette officielle du Québec, the amendment to the Appendix 1 of the Regulation respecting occupational health and safety (RSST, RLRQ, c. S-2.1, r. 13) will come into force on March 14, 2024. These regulatory changes have not yet been incorporated into the current Substance Data Sheets of the Sampling Guide for Air Contaminants in the Workplace. An update is currently underway and will be available as soon as possible. Consequently, the information contained in the data sheets of substances modified or added in Decree 280-2024 is partially inaccurate or incomplete. Please consult our infoLABO (in French only) for more details. Please contact our client service: [email protected] for further information.

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/m3 f/cc Notes
TWAEV - 0,2 - -
STEV - - - -
Ceiling - - - -
Carcinogenicity C1 Sensitizer
Simple asphyxiantPercutaneous
Prohibited useProhibited 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:
#IRSSTDescription
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).

Principle: Gravimetric measurement (Grav)
Precision (%): 8,7
Minimum reported value: 50 µg

IRSST. "Analyse du brai de houille/fumée". Méthode 201. Non publiée.