Disulfoton-sulfoxide, 10µg/mL in Cyclohexane, 10ml

Dimethyl phosphate, 100mg

2,2',3,3',4,4',5,6,6'-Nonachlorobiphenyl

Reagent kit for 45 tests (Free & total chlorine HR) Contains: 1 x 115 mL DPD0, 1 x 20mL DPD1, 1 x 20mL DPD3