ISO 4658:2020

Acrylonitrile-butadiene rubber (NBR) — Evaluation procedure

Publication date: 11 gush 2020

General information

Current stage: 90.92 Effective date: 22 dhj 2025

Originator: ISO

Owner: ISO/TC 45/SC 3

Type: International Standard

ICS: 83.060

Gjuha: anglisht

Buying

Statusi: Publikuar

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Scope

This document specifies, for acrylonitrile-butadiene rubbers (NBRs):
— physical and chemical tests on raw rubbers;
— standard materials, a standard test formulation, equipment and processing methods for evaluating the vulcanization characteristics.
The mixing preferred method is the single stage mixing with LIM (laboratory internal mixer).

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 4658:1999

WITHDRAWN
ISO 4658:1999/Amd 1:2004

NOW

PUBLISHED
ISO 4658:2020
90.92 Standard to be revised
22 dhj 2025

REVISED BY

IN_DEVELOPMENT
ISO/DIS 4658