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BSI
BS ISO 4658:2020
Acrylonitrile-butadiene rubber (NBR). Evaluation procedure
2020
18
Offline
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).