Method 508 Calibration Standard

Desphenyl chloridazon, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no.

1-Heneicosanol, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 15594-90-8

2,2',3,3',4,4'-Hexachlorobiphenyl