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AATCC 168

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

Organization:
AATCC - The American Association of Textile Chemists and Colorists
Year: 2012

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.
URI: https://yse.yabesh.ir/std/handle/yse/88387
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    AATCC 168

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contributor authorAATCC - The American Association of Textile Chemists and Colorists
date accessioned2017-09-04T16:25:12Z
date available2017-09-04T16:25:12Z
date copyright2012.01.01
date issued2012
identifier otherTWXSBFAAAAAAAAAA.pdf
identifier urihttps://yse.yabesh.ir/std/handle/yse/88387
description abstractPurpose 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.
languageEnglish
titleAATCC 168num
titleChelating Agents: Active Ingredient Content of Polyaminopolycarboxylic Acids and Their Salts; Copper PAN Methoden
typestandard
page3
statusActive
treeAATCC - The American Association of Textile Chemists and Colorists:;2012
contenttypefulltext
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