beta-Endosulfan-d4 (1,1,5,5-d4),100 µg/mL,n-nonane,1mL,

Tetradifon, 10.0 µg/ml, Ethyl acetate, 10ml

Chloridazon, 1000µg/ml in MeOH, 1ml

Thiophene in Toluene Units: 5x1mL ampoule, 1x10mL screw-capped bottle Chiron No. Concentration µgS/g (ppm) Wt.% S-4053-0 Blank 0 S-4053-K 1 000 0.1000 S-4053-2.5K 2 500 0.2500 S-4053-5K