1-(3,4-Dichlorophenyl)-3-methylurea, 100 µg/ml, A

Thiophene/2-Methylthiophene (2:1) in isooctane/Toluene(3:1); Units: 5x1mL ampoules, 1x10mL screw-capped bottle Chiron No. Concentration µgS/g (ppm) Wt.% S-4056-0 Blank 0 S-4056-5 5

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

Benzene, certified, 5ml