NF ISO 7267-1

NF ISO 7267-1

November 2017
Standard Cancelled

Rubber-covered rollers - Determination of apparent hardness - Part 1: IRHD method

ISO 7267-1:2017 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 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, 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.

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Main informations

Collections

National standards and national normative documents

Publication date

November 2017

Number of pages

11 p.

Reference

NF ISO 7267-1

ICS Codes

83.140.99   Other rubber and plastics products

Classification index

T47-404-1

Print number

1

International kinship

ISO 7267-1:2017
Sumary
Rubber-covered rollers - Determination of apparent hardness - Part 1: IRHD method

ISO 7267-1:2017 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 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, 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.

Replaced standards (1)
NF ISO 7267-1
November 2008
Standard Cancelled
Rubber-covered rollers - Determination of apparent hardness - Part 1 : IRHD method

ISO 7267-1:2008 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 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, having a base specifically designed for application to roller covers and similar curved surfaces.

Standard replaced by (1)
NF ISO 48-6
December 2018
Standard Current
Rubber, vulcanized or thermoplastic - Determination of hardness - Part 6 : apparent hardness of rubber-covered rollers by IRHD method

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.

Table of contents
  • Avant-propos
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Délai entre mise en forme, rectification et essai
  • 5 Conditionnement et température d'essai
  • 6 Appareillage
  • 7 Mode opératoire
  • 8 Expression des résultats
  • 9 Rapport d'essai
  • Bibliographie
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