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Zinc Sulfate, 10% w/v, for Nitrogen (Ammonia), Nitrogen (Organic)
Zinc Acetate, 10% w/v, for Cyanide
Sodium Hydroxide, 50% w/v
Sulfuric Acid, 3.0N (1.5M)
Sodium Chlorite, Technical, 80%
Water, Deionized, ACS, ASTM Type I
o-Tolidine, 0.1%
Turbidity Stock Solution I, Hydrazine Sulfate, 1%
Zobell's Solution (ORP Standard, 220 mV)
Zinc, Granular, 20 Mesh, ACS
Sodium Hydroxide, 6.0N (6.0M)
Sodium Oxalate, 0.025M (0.05N), for Nitrogen (Nitrite)
Sodium Thiosulfate, 0.025N (0.025M)
Sodium Thiosulfate, 0.0394N (0.0394M), for Iodine Absorption Number
Sodium Thiosulfate, 0.0375N (0.0375M)
Stannous Chloride, 10% w/v
