EPA Method 8121 Analytes

Reagent kit for 100 tests (pH and free & total chlorine) Contains: 1 x 20 mL DPD1, 1 x 20 mL DPD2, 1 x 20mL DPD3, 1 x 20mL pH3

Ethoxyquin Dimer, 25mg

Monoethyl phthalate-3,4,5,6-d4, 100µg/ml in MeOH, 1ml