EPA Method 8141 Standard

Propyphenazone-d3 (2N-methyl-d3), neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 162935-29-7

Metazachlor OA, 100µg/ml in Acetonitrile, 1ml

2,2',4,5,5'-Pentachlorobiphenyl,neat,neat,10mg,