Methidathion, 100 µg/ml, Ethyl acetate, 5ml

Aqueous Ethanol Standard (0.3g/l), 10 x 1,2ml

2-Nitroanthracene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 3586-69-4

ASTM D-2887 Column Test Standard