Shfuqizuar
This International Standard 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.
WITHDRAWN
ISO 4658:1990
WITHDRAWN
ISO 4658:1999
95.99
Withdrawal of Standard
11 gush 2020
WITHDRAWN
ISO 4658:1999/Amd 1:2004