GB/T 21884-2008 (English Version) PDF

Standard No.: GB/T 21884-2008
Language: Chinese, Available in English version
Release Date: 2008
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 21884-2008

Scope: This standard specifies the method for the determination of the chelating ability of chelating agents in textile printing and dyeing auxiliaries. This standard applies to the determination of the chelating ability of organic polyphosphonates, polymer polycarboxylic acids and their salts in textile printing and dyeing auxiliaries; it also applies to ethylenediaminetetraacetic acid (EDTA), N-hydroxyethylenediamine Determination of the chelating ability of tetraacetic acid (HEDTA), diethyltetraaminepentaacetic acid (DTPA) and their salts.

GB/T 21884-2008 Referenced Document

GB/T 601 Chemical reagent.Preparations of reference titration solutions*， 2016-10-13 Update
GB/T 603 Preparation of preparations and products used in chemical reagent test methods*， 2023-08-06 Update
GB/T 6368-1993 Surface active agents. Determination of pH of aqueous solutions. Potentiometric method
GB/T 6682 Water for analytical laboratory use.Specification and test methods
GB/T 679-2002 Chemical reagent Ethanol

2008 GB/T 21884-2008 Textile auxiliaries.Chelating agents.Determination of the capability of chelating