COD Calibration Standard

Tris(4-chlorophenyl)methane, 1.2ml x 50ug/ml, nonane

4-Dodecylphenol, mixture of isomers, neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 210555-94-5

Heptachlor-exo-epoxide, 100 µg/ml, Ethyl acetate,