Orion Reagent Chemistries  
Alkalinity-M, Acid/Indicator Method Iron, Low Range, III, Soluble, TPTZ Method
Alkalinity-P, Acid/Indicator Method Iron, II & III, Soluble, 1,10-Phenanthroline Method
Aluminum, Eriochrome Cyanine R Method Iron, Total, TPTZ Method
Ammonia as Nitrogen (N), Indophenole/Phenate Method Manganese, Formaldoxime Method
Ammonia as Nitrogen (N), Salicylate Method Manganese, Low Range, PAN Method
Ammonia as Nitrogen (N), High Range, Salicylate Method Manganese, High Range, Periodate Oxidation Method
Ammonia as Nitrogen (N), Low Range, Salicylate Method Molybdate/Molybdenum, Mercaptoacetic Acid Method
Bromine, DPD Method Nitrate as Nitrogen (N), Chromotropic Acid Method
Chloride, Silver Nitrate/Turbidity Method Nitrite as Nitrogen (N), Diazotization (Azo) Method
Chlorine, Free & Total, DPD Method Nitrite as Nitrogen (N), Low Range, Diazotization (Azo) Method
Chlorine, Free, DPD Method Nitrogen, Total, Low Range, Persulfate Digestion Method
Chlorine, Total, DPD Method Nitrogen, Total, High Range, Persulfate Digestion Method
Chlorine, Total, High Range, KI / Acid Method Ozone, Indigo Blue Method
Chlorine, Free, DPD Method pH, Phenol Red Method
Chlorine, Total, DPD Method Phosphate, Ortho, Low Range, Phosphomolybdic Acid/Ascorbic Acid Method
Chlorine Dioxide, DPD Method Phosphate, Ortho, High Range, Vanadomolybdate Method
COD, Low Range, Dichromate Reactor Digestion Method Phosphate, Ortho, Ascorbic Acid Method
COD, Mid Range, Dichromate Reactor Digestion Method Phosphate as Phosphorous (P), Total, Persulfate Digestion/Ascorbic Acid Method
COD, High Range, Dichromate Reactor Digestion Method Phosphate as Phosphorous (P), Acid Hydrolyzable, Acid Digestion/Ascorbic Acid Method
Copper, Free & Total, Biquinoline Method Phosphate, Ortho, Ascorbic Acid Method
Copper, Zincon Method Silica, Silicomolybdate, Heteropoly Blue Method
Copper, Free, Bicinchoninate Method Silica, Silicomolybdate, Heteropoly Blue Method with Phosphate Removal
Cyanuric Acid, Melamine Method Silica, High Range, Silicomolybdate Method
Fluoride, SPADNS Kit Method Sulfate, Barium Sulfate/Turbidity Method
Hardness, Total, Metallphthalein Method Sulfide, Methylene Blue Method
Hydrazine, Dimethylamino-benzaldehyde Method Zinc, Zincon Method