EPA Method 524 & 624 - Internal Standard

Pirimiphos-methyl, 250mg

Sodium perfluoro-1-pentanesulfonate, 1.2ml x 50ug/ml, methanol

2,4,4',5-Tetrachlorobiphenyl, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 32690-93-0