GB15892-2020

Polyaluminium chloride for treatment of drinking water

生活饮用水用聚氯化铝

GB 15892-2020 は現行の中国強制国家規格です：Polyaluminium chloride for treatment of drinking water。業界：電子。テーマ：製品安全。施行日：2021年8月1日。

適用可否は製品範囲、認証ルート、所管当局の通知、移行規定によって異なります。コンプライアンス判断に使う前に、翻訳をご依頼いただくか公式情報源をご確認ください。

コンプライアンス概要

この概要は現在英語のみで提供しています。

適用範囲

This standard applies to polyaluminium chloride specifically used for the treatment of drinking water. It covers the requirements, test methods, inspection rules, and labeling for both liquid and solid forms of this water treatment chemical. It is strictly applicable to products used for the purification of domestic potable water and does not cover industrial-grade variants.

技術要求

The standard specifies the physical and chemical requirements for polyaluminium chloride, categorized into liquid and solid product types. It mandates strict controls on the aluminum oxide (Al2O3) mass fraction, basicity, density, and insoluble matter content. Manufacturers must ensure the product's physical appearance and pH values fall within the specified regulatory limits. A significant portion of the requirements focuses on the heavy metal limits to ensure drinking water safety. The standard enforces maximum mass fractions for iron, arsenic, lead, cadmium, mercury, and chromium. Compliance with these toxic substance thresholds is mandatory for all market access. Additionally, the standard outlines specific raw material requirements, stating that hydrochloric acid must comply with GB/T 320 and aluminum hydroxide with GB/T 4294. It also includes an informative appendix detailing the evaluation method for coagulation performance using natural raw water.

試験方法

The standard outlines rigorous analytical procedures to verify compliance. Key testing methods include: - Al2O3 Content: Determined via titration using either a zinc chloride standard solution (arbitration method) or a copper sulfate standard solution. - Basicity: Measured using an acid-base back-titration method with sodium hydroxide after masking aluminum ions with potassium fluoride. - Heavy Metals (As, Pb, Cd, Hg, Cr): Evaluated using advanced instrumental techniques such as atomic fluorescence spectrometry (for As and Hg) and electrothermal/flame atomic absorption spectrometry (for Pb, Cd, and Cr). - Physical Parameters: Density is measured using a hydrometer, pH using an acidometer, and insoluble matter via gravimetric filtration.

よくある質問

What products are regulated under GB 15892-2020?

This standard regulates polyaluminium chloride used specifically for the treatment of drinking water. It applies to both liquid and solid forms of the product intended for potable water purification.

Are there any updates from the previous version of GB 15892?

The 2020 version has updated the technical limits for various indicators. It also added new testing methods for iron and chromium content, and updated the testing methodologies for arsenic, lead, cadmium, and mercury by introducing atomic fluorescence spectrometry and flame atomic absorption spectrometry.

How does GB 15892-2020 relate to international standards?

The standard references several Chinese national standards for reagent preparation and testing methodologies, such as GB/T 22596 for iron determination and GB/T 6682 for laboratory water specifications. While it aligns with modern analytical techniques, manufacturers must strictly adhere to the specified GB testing methods for compliance.

The summary above provides a high-level overview of GB 15892-2020. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 15892-2020 today to access all detailed parameters, tables, and testing procedures.

適用のヒント

種別: 製品
CCS: G77
ICS: 71.100.80
所管部門: Ministry of Industry and Information Technology
技術委員会: Ministry of Industry and Information Technology