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

substance

Laboratory Services   >   Analysis and Testing Services   >   Workplace Air Contaminants   >   substance
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.

tert-Butyl chromate  

French name in the regulation: Chromate de butyle tertiaire
CAS : 1189-85-1

Exposure Standards in RROHS regulation

Permissible exposure values (PEV)
ppm mg/m3 f/cc Notes
TWAEV - - - -
STEV - - - -
Ceiling - 0,1 - -
Carcinogenicity Sensitizer
Simple asphyxiantPercutaneous
Prohibited useProhibited recirculation
Minimum exposureExplosion hazard
Ototoxic

TWA adjustment for unusual work schedules

1A : No adjustment

CNESST – Toxicological Index Service

Consult REPTOX file: tert-Butyl chromate

Analysis:

Chromate de butyle tertiaire (exprimé en CrO3)

Method: IRSST - 365

Sampling protocol

Sampling device: Quartz filter
Parameters:
Flow rate: 1,5 to 4 L/min
TWA sampling volume: 360 L
STEL sampling volume: -
Remarks: IRSST method #365 could be adapted for this product. Contact the IRSST before sampling.

Principle: Ion chromatography with visible detection (IC-VIS)

IRSST. Détermination des composés inorganiques du chrome hexavalent hydrosolubles et hydroinsolubles dans l'air des lieux de travail, Méthodes analytiques, méthode 365, Montréal, IRSST, 2009, 17 pages.