Hazard search

Ethanethiol

CAS number
75-08-1
Also known as
Ethyl mercaptan · Ethyl mercaptan (mercaptans) · Mercaptoethane · Thioethanol · Thioethyl alcohol

UK workplace exposure limits

LimitValueApplies to
8-hour TWA 0.5 ppm
8-hour TWA 1.3 mg/m³
15-minute STEL 2 ppm
15-minute STEL 5.2 mg/m³

Sampling methods

MethodSamplingMedium AnalysisPart numbers
NIOSH 2542
Mercaptans by GC-FPD
Method document (opens in a new tab)
Active (pump) Coated glass fibre filter in cassette GC-FPD 225-9007
225-1
Non-agency
Ethyl mercaptan by Colorimetric analysis
Direct-reading Gastec detector tube 810-72
810-72LN
810-70

Methods and limits as published by their agencies and summarised by SKC; check the current method and the limit that applies to you before sampling.

Source: SKC Ltd (UK), Hazard Search, used with SKC's permission (opens in a new tab); SKC Inc. (USA), Sampling Guides, used with SKC's permission (opens in a new tab)