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Standard Test Method for Measuring the Relative Stiffness of Leather by Means of a Torsional Wire Apparatus
NORMA vydaná dňa 1.4.2019
Označenie normy: ASTM D2821-19
Dátum vydania normy: 1.4.2019
Kód tovaru: NS-948748
Počet strán: 4
Približná hmotnosť: 12 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
glove leather, stiffness ,, ICS Number Code 59.140.30 (Leather and furs)
Adjunct to D2821 Test Method for Measuring the Relative Stiffness of Leather by Means of a Torsional Wire Apparatus
Vybraný formát:Significance and Use | ||||
3.1 This test method is designed to measure the apparent torsional modulus3 of a leather specimen. Experience has shown that the torsion modulus of leather is directly related to the characteristic known as stiffness when felt in a glove.4 |
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1. Scope | ||||
1.1 This test method describes the use of a torsional apparatus for measuring the relative stiffness of gloving leathers. This test method does not apply to wet blue. 1.2 The values stated in SI units are to be regarded as the standard. The values shown in parentheses are provided for information only. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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2. Referenced Documents | ||||
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