Semi-Volatile Standard

EPA Method 507 Nitrogen Phosphorus Pesticides

4-Methoxy-2',3,5,5'-tetrachlorobiphenyl, 100µg/ml in IO, 1ml

2,6,10,15,19-Pentamethyleicosane, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 73303-36-3