Exposure Standard Documentation
Methyl isobutyl ketone
SUBSTANCE NAME:Methyl isobutyl ketone
Synonyms:MIBK
4-Methyl-2-pentanone
Hexone
CAS Number:108-10-1
Exposure Standard:
TWA: 50 ppm 205 mg/m3
STEL: 75 ppm 307 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 Guidance on the interpretation of Workplace exposure standards for airborne contaminants.
Footnotes:
Documentation for the majority of substances can be found in the American Conference of Governmental Industrial Hygienists' (ACGIH) documentation of the threshold limit values and biological exposure indices - users should refer to the ACGIH documentation cited.