ISO 4658:2020

Acrylonitrile-butadiene rubber (NBR) — Evaluation procedure

Datum objavljivanja: 11. 8. 2020.

Опште информације

Trenutna faza: 90.92 Effective date: 22. 12. 2025.

Inicijator: ISO

Pripada: ISO/TC 45/SC 3

Vrsta: Međunarodni standard

ICS: 83.060

Jezik: engleski

Kupovina

Status: Objavljen

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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).