This standard is the shore hardness standard (hereinafter referred to as the standard) used for comprehensive error inspection of shore hardness testers.
KS B 5531-2005 history
2020KS B 5531-2020 Standardized blocks of shore hardness
2005KS B 5531-2005 Standardized blocks of shore hardness
1995KS B 5531-1995 Standardized blocks of shore hardness