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Ammonia Nitrogen Analyzer （氨氮）
（Meathod A : Nessler's Reagent Colorimetry） （Meathod B : Salicylic Acid Spectrophotometry）
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BOD（5） Tester
Water Quality Determination of Biochemical Oxygen Demand after 5 days（BOD5） Dilution and Seeding Method
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COD（cr） Tester
Water Quality Determination of the Chemical Oxygen Demand by Fast Digestion Spectrophotometric Method
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