Paraoxon-methyl, 100 µg/ml, Acetonitrile, 5ml

Bis(2,4-diisopropylphenyl) phenyl phosphate, 1.2ml x 50ug/ml, toluene

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

1,2,3,4,6,7,8-Heptachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene