D4-Acetylsalicylic acid, 100 µg/ml, Acetonitrile,

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

2,2',3,3',5,5',6,6'-Octachlorobiphenyl (202)

Ioxynil, 100 µg/ml, Acetonitrile, 5ml