ISO/CD 25694-2

Carboxylic-acrylonitrile-butadiene rubber (XNBR) — Determination of carboxyl content — Part 2: Oxygen analysis

General information

Current stage: 30.60 Close of voting/ comment period Jul 8, 2026

Originator: ISO

Owner: ISO/TC 45/SC 3 Raw materials (including latex) for use in the rubber industry

Type: International Standard

Scope

This document specifies a method for the determination of the carboxyl content in carboxylic-acrylonitrile-butadiene rubber (XNBR) using elemental analyser.
This method is applicable to carboxylic-acrylonitrile-butadiene rubber with carboxyl content not less than 1%.

Life cycle

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IN_DEVELOPMENT
ISO/CD 25694-2
30.60 Close of voting/ comment period
Jul 8, 2026