EPA Methd 8330 Standard

Propamocarb-d7 (O-propyl-d7),100 µg/mL,acetonitrile,1mL,

alphaßß (20R,24S)-24-Methylcholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 71117-90-3

4,4'-DDE, 100 µg/ml, Toluene, 5ml