The Standard specifies four methods for the determination of the hardness of vulcanized or thermoplastic rubbers on flat surfaces.
DIN ISO 48:2003 history
1970DIN ISO 48:2016-09 Rubber, vulcanized or thermoplastic - Determination of hardness (hardness between 10 IRHD and 100 IRHD)
0000 DIN ISO 48:2016
2009DIN ISO 48:2009 Rubber, vulcanized or thermoplastic - Determination of hardness (hardness between 10 IRHD and 100 IRHD) (ISO 48:2007);English version of DIN ISO 48:2009-10
2003DIN ISO 48:2003 Rubber, vulcanized or thermoplastic - Determination of hardness (hardness between 10 IRHD and 100 IRHD) (ISO 48:1994 + Amd. 1:1999)