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API STD 521: Guide for Pressure-relieving and Depressuring Systems – Edition 6

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ISO 23075:2021

ISO 23075:2021 Vulcanized rubbers – Determination of antidegradants by high-performance liquid chromatography

CDN $186.00

Description

This document describes a procedure for the determination of the following antidegradants in vulcanized rubbers:

-    aminoketone group;

-    naphthylamine group;

-    diphenylamine group;

-    p-phenylenediamine;

-    monophenol group.

The groups of antidegradants are summarized in Table A.1 with the chemical names, the abbreviated terms and the CAS registry numbers.

Extender oils, when present, can interfere.

For poly-2,2,4-trimethyl-1,2-dihydroquinoline, the method provides only an approximation because of its polymeric nature.

Edition

1

Published Date

2021-03-31

Status

PUBLISHED

Pages

17

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

This document describes a procedure for the determination of the following antidegradants in vulcanized rubbers:

-    aminoketone group;

-    naphthylamine group;

-    diphenylamine group;

-    p-phenylenediamine;

-    monophenol group.

The groups of antidegradants are summarized in Table A.1 with the chemical names, the abbreviated terms and the CAS registry numbers.

Extender oils, when present, can interfere.

For poly-2,2,4-trimethyl-1,2-dihydroquinoline, the method provides only an approximation because of its polymeric nature.

Previous Editions

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