BS 7442-3.1(1991) : 1991被替代
RUBBER OR PLASTICS COVERED ROLLERS - METHODS OF TEST - DETERMINATION OF APPARENT HARDNESS (IRHD METHOD)
出版：British Standards Institution
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基本信息
标准编号： BS 7442-3.1(1991) : 1991
发布时间：1991/1/1 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：8
标准简介
Describes a method for determining the apparent hardness of vulcanized rubber roller covers. The method is similar to those used for determining of the hardness of rubber vulcanizates. It consists essentially of measuring the depth of penetration of a spherical indentor operating under a specified force. Covers time-interval between vulcanization and finished grinding, and testing and conditioning and temperature of test.
替代本标准的新标准
等同采用的国际标准
ISO 7267-1 : 2017 - Identical
