EPA Method 502.2/524.2 - Liquids, VOC, 200ug/ml in MeOH, 1ml

2-Ethyl-5-methylthiophene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 40323-88-4

Atrazine desethyl, 100µg/mL in MeOH, 1ml

CDPOS, 10mg