ASTM D2210 - 13

    Standard Test Method for Grain Crack and Extension of Leather by the Mullen Test

    Active Standard ASTM D2210 | Developed by Subcommittee: D31.03

    Book of Standards Volume: 15.04


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    Significance and Use

    4.1 The test method is designed to measure the force required to crack the grain of leather by steady hydraulic pressure on a diaphragm of definite diameter applied to the flesh side of the specimen to form a sphere. The cracking of the grain is a result of failure under elongation or stretch. The elongation or stretch of the leather can be measured at different loads or at the failure of the grain to determine if the stress leather will withstand under lasting conditions. Cuts, scratches, and other defects will cause considerable variation in the results by concentration of the applied force to the weak points. This test method is excellent for manufacturing control, specification acceptance, and service evaluation in the lasting property of leather. This test method may not apply when the conditions of the test employed differ widely from those specified in the test method.

    1. Scope

    1.1 This test method covers the determination of the resistance of leather to grain cracking and for measuring the extension of the leather. It is limited to light leathers such as shoe uppers, garment, gloves, and upholstery. This test method does not apply to wet blue.

    1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

    1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D1610 Practice for Conditioning Leather and Leather Products for Testing

    D1813 Test Method for Measuring Thickness of Leather Test Specimens


    ICS Code

    ICS Number Code 59.140.30 (Leather and furs)

    UNSPSC Code

    UNSPSC Code 11162300(Leathers)


    DOI: 10.1520/D2210

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