Carbazole-d8, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 97960-57-1

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

Lake Michigan Study Solutions of single reference substances KIT: 9 compounds, 10 µg/mL each in isooctane Chiron No. Compound PBDE No. Conc. 1961.12-50-IO 2,4,4’-Tribromodiphenyl ether PBDE-28 50 µg/mL 1962.12-50-IO 2,2’,4,4’-Tetrabromodiphenyl ether

PCB No. 29, 10μg/mL in Isooctane, 10ml