标准号:IS 7479-1985
发布日期:1986/5/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:Covers the requirements of recess penetration gauges for checking cross recesses to IS : 7478-1985 'Dimensions for cross recesses (first revision )'. Method of penetration gauging of cross recesses is given in Appendix A.