BOD Calibraton Standard

2,2',3,3',4,5,6'-Heptachlorobiphenyl (174)

pH 7.0 Standard @ 25°C

17 alpha(H),21 alpha(H)-(22RS)-Bishomohopane , neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 105498-25-7