T/GDPMA 0003-2026 Hygiene safety and management standards for scale inhibitors in drinking water

Scope

This document stipulates the hygiene and safety, testing, and management requirements for scale inhibitors used in drinking water. This document applies to the production, use, and management of scale inhibitors used in drinking water. 1. This document is one of the outcomes of the special research project "Study on the Hygiene and Safety of Slow-Release Scale Inhibitors for Drinking Water" commissioned by the Second Supervision Department of the National Center for Disease Control and Prevention (GB/T 17218-2025), and can serve as a reference for relevant professionals. 2. Introduction This document supplements the normative requirements for the hygiene and safety, testing, and management of scale inhibitors used in drinking water as specified in GB/T 17218-2025: "Evaluation of the Hygiene and Safety of Chemical Treatment Agents for Drinking Water". 3. Terms and Definitions 3.1 Scale inhibitors in drinking water A compound or mixture of chemicals that prevents or interferes with the precipitation and scaling of hard-to-dissolve inorganic salts (calcium and magnesium), disperses hard-to-dissolve inorganic salts in drinking water, and meets the hygiene and safety requirements for drinking water. Note: Hereinafter, "scale inhibitors" are referred to as "scale inhibitors for drinking water". Scale inhibitors for drinking water are divided into non-slow-release and slow-release types, and into pre-membrane and non-pre-membrane types according to their application scenarios. 3.2 Non-slow-release scale inhibitors for drinking water This category includes scale inhibitors for municipal water supply and scale inhibitors used in large-scale water treatment plants before membrane filtration. 3.2.1 Scale inhibitors for municipal water supply Products that prevent the scaling of municipal water after heating (e.g., the formation of floating flakes on the water surface, scale deposits, and other visual water quality issues) and have a certain corrosion inhibiti

Development Information

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