AATCC 168

Chelating Agents: Active Ingredient Content of Polyaminopolycarboxylic Acids and Their Salts; Copper PAN Method

contributor author	AATCC - The American Association of Textile Chemists and Colorists
date accessioned	2017-09-04T16:25:12Z
date available	2017-09-04T16:25:12Z
date copyright	2012.01.01
date issued	2012
identifier other	TWXSBFAAAAAAAAAA.pdf
identifier uri	https://yse.yabesh.ir/std/handle/yse/88387
description abstract	Purpose and Scope This test method is an alternate to AATCC Method 149, Chelating Agents: Chelation Value of Aminopolycarboxylic Acids and Their Salts; Calcium Oxalate Method. The active ingredient content of ethylenediaminetetraacetic acid (EDTA), N-hydroxyethylethylenediaminetriacetic acid (HEDTA) and diethylenetriaminepentaacetic acid (DTPA) and their salts is usually expressed by the calcium chelation value (CaCV). Titration with a calcium salt using either oxalate or a dye indicator, as done in AATCC Method 149, yields a value which includes partially substituted EDTA, HEDTA, DTPA, nitrilotriacetic acid (NTA), iminodiacetic acid (IDA), glycolate and other weak chelating agents found in some commercial products. This alternative procedure excludes the effect of the partially substituted products, providing a more stringent value.
language	English
title	AATCC 168	num
title	Chelating Agents: Active Ingredient Content of Polyaminopolycarboxylic Acids and Their Salts; Copper PAN Method	en
type	standard
page	3
status	Active
tree	AATCC - The American Association of Textile Chemists and Colorists:;2012
contenttype	fulltext