IRSST - Institut de recherche Robert-Sauvé en santé et en sécurité du travail

 Important Notice Concerning COVID-19

Due to the rapid spread of COVID-19, and to ensure the health and safety of its employees and its entire network, the IRSST has implemented exceptional measures.
Learn More 

On March 26, 2020, according to Decree 159-2020 published on March 11, 2020 in the Gazette officielle du Québec, the Regulation respecting occupational health and safety (RSST, RLRQ, c. S-2.1, r. 13) is amended in Appendix 1. 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 159-2020 is probably inaccurate or incomplete. Please contact our client service: [email protected] for further information.


French name in the regulation: Résorcinol
CAS : 108-46-3
Synonyms: Benzene, m-dihydroxy-, 1,3-Benzenediol, m-Hydroquinone, 3-Hydroxycyclohexadien-1-one, 3-Hydroxyphenol, Resorcine

Exposure Standards in RROHS regulation

Permissible exposure values (PEV)
ppm mg/m3 f/cc Notes
TWAEV 10 45 - -
STEV 20 90 - -
Ceiling - - - -
Simple asphyxiant Percutaneous
Minimum exposure Sensitizer
Prohibited use Prohibited recirculation

TWA adjustment for unusual work schedules

II : Daily adjustment

CNESST – Toxicological Index Service

Consult REPTOX file: Resorcinol



Recommended method by the IRSST:
Method: OSHA - PV2053
Sampling device: Versatile OVS-7 tube with XAD-7 and a glass fiber filter
Flow rate: 1 L/min
TWA sampling volume: 60 L
STEL sampling volume: -
Remarks: This substance is not analyzed by our laboratories. It might be possible that the analysis be performed by another laboratory. Please contact the IRSST before sampling.
Principle: Gas chromatography with flame ionization detection (GC-FID)
OSHA, Chemical information Manual, PV2053, Resorcinol, 1994.