EPA Method 552 Internal Standard

Temephos-d12 (O,O,O',O'-tetramethyl-d12), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1219795-39-7

Diethylnitramine, 1000µg/mL, Solvent-methanol, Unit 1.1mL, # of units-1, Cas.no. 7119-92-8

Chloridazon-methyl-desphenyl, 100µg/mL in Acetonitrile, 1ml