Publikuar
This document specifies a method for the determination of the apparent hardness, expressed in International Rubber Hardness Degrees (IRHD), of vulcanized- or thermoplastic-rubber roller covers.
The method is similar in principle to the methods used for the determination of the hardness of rubber in ISO 48-2 in that it consists essentially of measuring the depth of penetration of a spherical indentor operating under a specified force. The apparatus used is similar to that described in ISO 48-2, having a base specifically designed for application to roller covers and similar curved surfaces.
NOTE With some rollers, there can be significant variation in the thickness of the rubber over the surface of the roller, which could affect the measured apparent hardness.
WITHDRAWN
ISO 7267-1:2017
PUBLISHED
ISO 48-6:2018
90.93
Standard confirmed
4 jan 2024
Gomë e vullkanizuar ose termoplastike - Përcaktimi i fortësisë - Pjesa 6: Fortësia e dukshme e rrotullave të mbuluar me gomë me metodën IRHD
60.60 Standard published
English