ISO 48:2007
Rubber, vulcanized or thermoplastic - Determination of hardness (hardness between 10 IRHD and 100 IRHD)

Standard No.

ISO 48:2007

Release Date

2007

Published By

International Organization for Standardization (ISO)

Status

Withdraw

Replace By

ISO 48:2007/Cor 1:2009

Latest

ISO 48:2010

Scope

This International Standard specifies four methods for the determination of the hardness of vulcanized or thermoplastic rubbers on flat surfaces (standard-hardness methods) and four methods for the determination of the apparent hardness of curved surfaces (apparent-hardness methods). The hardness is expressed in international rubber hardness degrees (IRHD). The methods cover the hardness range from 10 IRHD to 100 IRHD. The methods differ primarily in the diameter of the indenting ball and the magnitude of the indenting force, these being chosen to suit the particular application. The range of applicability of each method is indicated in Figure 1. The determination of hardness by a pocket hardness meter is described in ISO 7619-2.

ISO 48:2007 history

• 2010 ISO 48:2010 Rubber, vulcanized or thermoplastic - Determination of hardness (hardness between 10 IRHD and 100 IRHD)
• 2009 ISO 48:2007/Cor 1:2009 Rubber, vulcanized or thermoplastic - Determination of hardness (hardness between 10 IRHD and 100 IRHD); Technical Corrigendum 1
• 2007 ISO 48:2007 Rubber, vulcanized or thermoplastic - Determination of hardness (hardness between 10 IRHD and 100 IRHD)
• 1999 ISO 48:1994/Amd 1:1999 Rubber, vulcanized or thermoplastic - Determination of hardness (Hardness between 10 IRHD and 100 IRHD); Amendment 1
• 1994 ISO 48:1994 Rubber, vulcanized or thermoplastic - Determination of hardness (Hardness between 10 IRHD and 100 IRHD)
• 1979 ISO 48:1979 Vulcanized rubbers; Determination of hardness (Hardness between 30 and 85 IRHD)
• 1975 ISO 48:1975 Title missing - Legacy paper document
• 1974 ISO 48:1974 Title missing - Legacy paper document