(Substance [CAS No.]Documentation date: Methyl isobutyl ketone [108-10-1] (2009

TWA: 20 ppm

STEL: 75 ppm

Notations: A3; BEI

MW: 100.16

TLV® Basis: URT irr; dizziness; headache

(BIOLOGICAL EXPOSURE DETERMINANTS METHYL ISOBUTYL KETONE [108-10-1] (2009
Determinant: Methyl isobutyl ketone in urine
Sampling Time: End of shift
BEI®: 1 mg/L