Piperonyl butoxide, 100 µg/ml, Acetonitrile, 5ml

1-Naphthaldehyde,1000 µg/mL,isooctane,1mL,

EPA Method 8032 Internal Standard

6-Methyl-2',3,4,4'-tetrachlorodiphenylmethane, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no.