Standard Test Method for Slit Tear Resistance of Leather
4.1 This test method is designed to measure the load required to tear leather at a slit cut perpendicular to its surface. Tanners and leather buyers have found that it gives an indication of the resistance of the cross-sectional thickness of leather to tearing. It is of particular value in estimating the durability of leather to withstand tearing stresses encountered in the manufacture of shoes, garments, and upholstered products. The thickness of the specimen and direction of slit relative to the backbone will affect the uniformity of the test results. This test method may not apply when the conditions of the test employed differ widely from those specified in the test method.
1.1 This test method covers the determination of the slit tear resistance of light leathers such as shoe uppers, 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.
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