SS-ISO-4645 › Rubber and rubber products - Guide to the identification of antidegradants - Thin layer chromatographic methods (ISO 4645:2022, IDT)
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This document describes two methods for identification of antidegradants (antioxidants, antiozonants and stabilizers) which can be present in raw rubber, unvulcanized compounded rubber, or rubber products, by thin layer chromatography. Method A is a simplified method that provides for the identification of known materials and can be used to check the presence or absence of a particular antidegradant which is expected to be present. Method B is a more detailed method that enables a greater degree of separation of the spots to be obtained and therefore can be used to detect and identify an unknown antidegradant. Antidegradants to which these methods are applicable include phosphited polyalkyl phenols, substituted bisphenols, secondary amines, substituted cresols and substituted p-phenylenediamines. Examination for other types of antidegradants is possible under the same condition when there is a standard chromatogram.
To find similar documents by classification:
83.060 (Rubber Raw rubber, see 83.040.10)
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Designation Name
SS-ISO 4645:2022
Revision Level
2022 EDITION
Status
Current
Publication Date
May 30, 2022
Language(s)
English
Page Count
20
International Equivalent
ISO 4645:2022(IDT)