Rubber, vulcanized or thermoplastic -
Determination of hardness -
Part 5: Indentation hardness by IRHD pocket
meter method
(ISO 48-5:2018, IDT)
This document specifies a method for determining the indentation hardness of vulcanized or
thermoplastic rubber by means of a pocket hardness meter calibrated in IRHD. The use of such meters is
primarily intended for control, not specification, purposes (for specification, see ISO 48-2). It is possible
to increase precision by fixing the pocket hardness meter on a support.
