Exposure Standard Documentation
SUBSTANCE NAME:Hydrogen sulphide
CAS Number: 7783-06-4
TWA: 10 ppm 14 mg/m3
STEL: 15 ppm 21 mg/m3
Documentation notice. American Conference of Governmental Industrial Hygienists (ACGIH), Documentation of Threshold Limit Values and Biological Exposure Indices, 6th Edition, ACGIH, Cincinatti, Ohio, 1991
No standard should be applied without reference to the Guidance Note on the Interpretation of Exposure Standards for Atmospheric Contaminants in the Occupational Environment[NOHSC:3008(1995)], and to the related documentation.
Documentation for the majority of substances can be found in the American Conference of Governmental Indistrial Hygienists' (ACGIH) documentation of the threshold limit values and biological exposure indices - users should refer to the ACGIH documentation cited.