EPA Method 528 Fortification Solution

CONOSTAN Standard S-21, 500 ppm, 100g

2,2',3,3',6,6'-Hexachlorobiphenyl (136)

4-n-Nonylphenol (ring13C6) (same as S-4376-1-5AC), 1µg/ml, Solvent-Acetone, Unit 4.5ml, # of units-1, Cas.no.