Ethoprophos, 100 µg/ml, Toluene, 1ml

EPA Method 8260 Volatile Standard

1,2,7,8-Tetrachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

Ametryne, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 834-12-8