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ISO 48-7:2018

Rubber, vulcanized or thermoplastic — Determination of hardness — Part 7: Apparent hardness of rubber-covered rollers by Shore-type durometer method
20 gush 2018

General information

90.93     4 jan 2024

ISO

ISO/TC 45/SC 2

International Standard

83.140.99  

anglisht   frëngjisht  

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Scope

This document specifies a method for the determination of the apparent hardness of vulcanized- or thermoplastic-rubber roller covers, expressed in Shore hardness, for measurement where only medium precision is required. The method and apparatus used are essentially those described in ISO 48-4, the measurements in this case being made on the curved surface of the conditioned rubber-covered roller rather than on a flat test piece. Shore type A and type D instruments are specified, the latter being used for measurements on rollers of high hardness.
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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 7267-2:2008

NOW

PUBLISHED
ISO 48-7:2018
90.93 Standard confirmed
4 jan 2024