GB/T 26324-20251-Hydroxyethylidene-1,1-diphosphonic acid (English PDF)

1 Scope

This document specifies the requirements, inspection rules, marking, packaging, transportation, and storage of hydroxyethylidene diphosphonic acid (HEDP), and describes the relevant...

The corresponding test method.

This document applies to hydroxyethylidene diphosphonic acid (HEDP).

Note. This product is mainly used as a scale and corrosion inhibitor in industrial water treatment, and can also be used as a chelating agent in textile printing and dyeing, and as an additive in daily chemical products.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB 190 Packaging Marks for Dangerous Goods

GB/T 191 Packaging and Storage Graphic Symbols

GB/T 601 Preparation of Standard Titration Solutions for Chemical Reagents

GB/T 602 Preparation of standard solutions for the determination of impurities in chemical reagents

GB/T 603 Preparation of reagents and products used in chemical reagent test methods

GB/T 6678 General Rules for Sampling of Chemical Products

GB/T 6682-2008 Specifications and test methods for water used in analytical laboratories

GB/T 8170 Rules for rounding off numerical values and the representation and determination of limiting values

GB/T 22592 General Rules for Determination of pH Value of Water Treatment Agents

GB/T 22594-2018 General Rules for Determination of Density of Water Treatment Agents

3 Terms and Definitions

The following terms and definitions apply to this document.

4 Molecular Formula and Structural Formula

Molecular formula. C2H8O7P2 […]