There are also prescribed standards for the use of sodium tripolyphosphate tech grade in water treatment

 The shortage of water resources and serious water pollution have caused serious water shortages in many places. In order to alleviate the severe water situation, water treatment has largely eased the tension of water resources. With the continuous improvement of environmental protection requirements, there has been a great breakthrough in the treatment of rainwater, recycled sewage, air water resources, and industrial wastewater, and the discharge has reached the standard. As an important water treatment agent, sodium tripolyphosphate tech grade also has relevant usage standards.


The country also attaches great importance to the quality testing of sodium tripolyphosphate. After combining the opinions of many parties, it issued HG / T 5563-2019 "Water Treatment Agent Sodium Tripolyphosphate" and stipulated that the standard will be July 1, 2020. No. officially implemented.


Test regulations and items of sodium tripolyphosphate tech grade water treatment agent


Requirements for the detection of sodium tripolyphosphate content: ≥92%

Testing requirements for total phosphate content: quality inspection at 56.0% -59.0%

Water insoluble matter content detection requirements: ≤0.1%

Iron content detection requirements: ≤0.015%

pH test requirements: between 9.2-10.0

Whiteness detection requirements: 85%

Test requirement for arsenic content: ≤0.003%

Cadmium content detection requirements: ≤0.0005%

Test requirements for lead content: ≤0.003%

Chromium content detection requirements: ≤0.003%


Although HG/T 5563-2019 is only an industry-recommended standard, it is of great reference value for enterprise quality production, government supervision and random inspection, and purchaser decision vouchers and arbitration inspection by arbitration institutions. The implementation of HG/T 5563-2019 also marks the entry of sodium tripolyphosphate as a water treatment agent into the era of standardization and standardization, which is of great significance for promoting the improvement of quality management in enterprises.


Under more stringent environmental protection requirements, water companies and water treatment technologies need to be implemented. Good at using high-quality water treatment agents such as sodium tripolyphosphate tech grade, so saving water resources will not be an empty talk.

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