GB/T 6913-2023 Translated English of Chinese Standard (GB/T 6913-2023, GBT6913-2023): Analysis of water used in boiler and cooling system -- Determination of phosphate

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https://www.chinesestandard.net, 2023/10/09 - 19 ページ
This document describes methods for the determination of orthophosphate, total inorganic phosphate, and total phosphate content in water used in boiler and cooling system: ammonium molybdate spectrophotometric method and continuous flow-ammonium molybdate spectrophotometric method. This document applies to the determination of orthophosphate, total inorganic phosphate, and total phosphate content in water used in boiler and cooling system. The measurement range of the ammonium molybdate spectrophotometric method is 0.05 mg/L ~ 50 mg/L (based on PO43-); the measurement range of the continuous flow-ammonium molybdate spectrophotometric method is 0.1 mg/L ~ 50 mg/L (based on PO43-).
 

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