Draft
International Standard
ISO/DIS 4658
Acrylonitrile-butadiene rubber (NBR) — Evaluation procedure
Reference number
ISO/DIS 4658
Edition 5
© ISO 2026
Draft International Standard
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Under development
This Draft International Standard is in the enquiry phase with ISO members.
Will replace ISO 4658:2020

ISO/DIS 4658

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CHF 67
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Abstract

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).

General information

  • Status
     : Under development

    You can help develop this draft international standard by contacting your national member

    Stage
    : DIS ballot initiated: 12 weeks [40.20]
  • Edition
     : 5
    Number of pages
     : 10
  • Technical Committee :
    ISO/TC 45/SC 3
    ICS :
    83.060 
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Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

9
Industry, Innovation and Infrastructure

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