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Overview ISO 4658:2020 - "Acrylonitrile-butadiene rubber (NBR) - Evaluation procedure" defines standardized methods for evaluating raw NBR (acrylonitrile‑butadiene rubber). The standard covers sampli…
What is ISO 4658 about? ISO 4658 specifies, for acrylonitrile-butadiene rubbers (NBRs): Physical and chemical tests on raw rubbers Standard materials, a standard test formulation, equipment and proce…