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).
OBJAVLJEN
ISO 4658:2020
PROJEKAT
ISO/DIS 4658
40.20
Nacrt na javnoj raspravi 60 dana
1. 4. 2026.
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