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  • BS 7442-3.1(1991) : 1991

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    RUBBER OR PLASTICS COVERED ROLLERS - METHODS OF TEST - DETERMINATION OF APPARENT HARDNESS (IRHD METHOD)

    Available format(s):  Hardcopy, PDF

    Superseded date:  15-01-1998

    Language(s):  English

    Published date:  01-01-1991

    Publisher:  British Standards Institution

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    Abstract - (Show below) - (Hide below)

    Describes a method for determining the apparent hardness of vulcanized rubber roller covers. The method is similar to those used for determining of the hardness of rubber vulcanizates. It consists essentially of measuring the depth of penetration of a spherical indentor operating under a specified force. Covers time-interval between vulcanization and finished grinding, and testing and conditioning and temperature of test.

    General Product Information - (Show below) - (Hide below)

    Committee PRM/73
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS 7442-4.1:1992 Rubber or plastics covered rollers. Requirements Specification for apparent hardness
    BS 903-1:1995 Physical testing of rubber Guide to the selection and use of methods of test for rubber

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 6123-1:2015 Rubber or plastics covered rollers — Specifications — Part 1: Requirements for hardness
    BS 903-A26:1969 Physical testing of rubber Determination of hardness
    ISO 1400:1975 Vulcanized rubbers of high hardness (85 to 100 IRHD) Determination of hardness
    ISO 1826:1981 Rubber, vulcanized Time-interval between vulcanization and testing Specification
    ISO 471:1995 Rubber Temperatures, humidities and times for conditioning and testing
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