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SRPS ISO 4658:2023

Acrylonitrile-butadiene rubber (NBR) — Evaluation procedure

Apr 28, 2023

General information

90.93     Jun 10, 2025

90.20    Apr 15, 2030

ISS

G045

International Standard

83.060  

English  

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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WITHDRAWN
SRPS ISO 4658:2015

NOW

PUBLISHED
SRPS ISO 4658:2023
90.93 Standard confirmed
Jun 10, 2025

Related project

Adopted from ISO 4658:2020 IDENTICAL