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

Ethyl mercaptan  

French name in the regulation: Éthylmercaptan
CAS : 75-08-1
Synonyms: Éthanethiol

Exposure Standards in RROHS regulation

Permissible exposure values (PEV)
ppm mg/m3 f/cc Notes
TWAEV 0,5 1,3 - -
STEV - - - -
Ceiling - - - -
Carcinogenicity Sensitizer
Simple asphyxiantPercutaneous
Prohibited useProhibited recirculation
Minimum exposureExplosion hazard
Ototoxic

TWA adjustment for unusual work schedules

1B : No adjustment

CNESST – Toxicological Index Service

Consult REPTOX file: Ethyl mercaptan

Analysis:

Ethylmercaptan

Recommended method by the IRSST:
Method: NIOSH - 2542
Sampling device: Glass fiber filter impregnated with a solution of 5% (w/w) mercuric acetate.
Parameters:
Flow rate: 0,1-0,2 L/min
TWA sampling volume: 150 L
STEL sampling volume: -
Remarks: Contact the IRSST before sampling. Protect the samples from light.
Principle: Gas chromatography with flame photometric detection (GC-FPD)
NIOSH, Manual of Analytical Methods, 4th ed., Method 2542 Mercaptans, methyl-,Ethyl-, and n-Butyl, 1994.