EPA Method 509 Internal Standard

2,2',4,4',5,5'-Hexabromobiphenyl, 50µg/mL, Solvent-hexane, Unit 1mL, # of units-1, Cas.no. 59080-40-9

Methylpropyldisulfide, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 2179-60-4

1,1,2-Trichloroethane