(Substance [CAS No.]Documentation date: Butenes, all isomers [106-98-9; 107-01-7;590-18-1; 624-64-6; 25167-67-3]
TWA: 250 ppm
STEL: Non
Notations: Non
MW: 56.11
TLV® Basis: Body weight eff
(Substance [CAS No.]Documentation date: Isobutene [115-11-7] (2008
TWA: 250 ppm
STEL: Non
[align=left]Notations: A4[/al
