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Turbidity Standard (Formazin), 4000 NTU
Zinc AA Standard, 1000 ppm (1mL = 1mg Zn)
Zinc Sulfate, Heptahydrate, ACS
Zinc Sulfate, 1.0M (2.0N)
Eriochrome¨ Black T in Methoxyethanol, for Hardness
Ammonium Thiocyanate, 0.025N (0.025M)
Vanadate-Molybdate Reagent, for Phosphorus
Oxalic Acid, 7.5% w/v, for Silica