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ISO 4658:2020

Acrylonitrile-butadiene rubber (NBR) — Evaluation procedure

Aug 11, 2020

General information

90.93     Jun 10, 2025

ISO

ISO/TC 45/SC 3

International Standard

83.060  

English  

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Published

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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WITHDRAWN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WITHDRAWN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
90.93 Standard confirmed
Jun 10, 2025

National adoptions

SRPS ISO 4658:2023  
ISS

Acrylonitrile-butadiene rubber (NBR) — Evaluation procedure

90.93   Standard confirmed

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