This Standard specifies procedures for the calibration and verification of the IRHD dead-load instruments (JIS K 6253-2), durometers (JIS K 6253-3) and IRHD pocket meters (JIS K 6253-4).
JIS K 6253-5:2012 Referenced Document
ISO 18899 Rubber - Guide to the calibration of test equipment*, 2013-07-01 Update