HG/T 2947-1986(1997) - 中外标准 - - 1986/11 - 作废
CNS 11746-1986 - 中外标准 - - 1986/10 - 现行
ISO 7267-2-1986 - 中外标准 - - 1986/7 - 作废
Describes the measurements of the appropriate hardness where only medium precision is required. The method and apparatus used are essentially those described in ISO 7619, the measurements in this case being made on the curved surface. Shore-type A and D instruments are specified, the latter being used for measurements on rollers of high hardness. Part 1 and 3 of this standard deal with the IRHD and Pusey and Jones method.