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Norm

ISO 48-7:2018

Issue date: 2018 08 20

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

This document specifies a method for the determination of the apparent hardness of vulcanized- or thermoplastic-rubber roller covers, expressed in Shore hardness, for mea...
Valid
Publisher:
International Organization for Standardization
Format:
Digital | 4 Pages
Language:
English

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.

ISO 48-7:2018
2018 08 20
Rubber, vulcanized or thermoplastic — Determination of hardness — Part 7: Apparent hardness of rubbe...
Norm
ISO 7267-2:2008
2008 07 21
Rubber-covered rollers — Determination of apparent hardness — Part 2: Shore-type durometer method
Norm
ISO 7267-2:1986
1986 07 03
Rubber-covered rollers — Determination of apparent hardness — Part 2: Shore-type durometer method
Norm