ASTM D2213-00(R2020) pdf free download

ASTM D2213-00(R2020) pdf free download.Standard Test Method for Compressibility of Leather
1. Scope
1.1 This test method covers the determination of the com- pressibility of sole leather. 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 appro- priate safety, health, and environmental practices and deter- mine the applicability ofregulatory limitations prior to use. 1.4 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards: 2 D1610 Practice for Conditioning Leather and Leather Prod- ucts for Testing D1813 Test Method for Measuring Thickness of Leather Test Specimens
3. Terminology
3.1 Definitions: 3.1.1 compressibility—the percentage change in thickness of a specimen on being subjected to a specified pressure for a period of time.
4. Summary of Test Method
4.1 A load of 12 000 lbf (53 kN) or 3000 psi (21 MPa) is applied to a leather specimen 2 by 2-in. 2 (51 by 51-mm 2 ). The percentage change in initial thickness, determined by measur- ing thicknesses before and after compression, represents the compressibility of the sample.
5. Significance and Use
5.1 Compressibility is considered an important factor that influences wear resistance of sole leather. 3,4
6. Apparatus
6.1 Press, 5 either hand- or power-driven, having a capacity of at least 15 000 lbf (67 kN) permitting a pressure of 3000 6 100 psi (21 6 1 MPa). The rate of increase shall not exceed 200 psi/s (1.4 MPa/s). The press shall contain two flat steel plates and an indicator for reading the applied force. A suitable testing machine may also be used. 6.2 Stop Watch, or other suitable timing device.
7. Test Specimen
7.1 The specimen shall be a square of leather 2 by 2 6 1 ⁄ 32 in. (51 by 51 6 0.8 mm) cut by a die.
8. Procedure
8.1 Condition the specimens in accordance with Practice D1610. 8.2 Measure the initial thickness of the specimen at the middle of each side approximately 0.5 in. (12.7 mm) from the edge in accordance with Method D1813 averaged and recorded as T 1 8.3 Place the specimen between the flat steel plates and apply pressure at a rate not greater than 200 psi/s (1.4 MPa/s) until the required 3000 6 100 psi (21 6 1 MPa) is reached. N OTE 1—The operator shall take care to apply the force uniformly and perpendicular to the leather surfaces. 8.4 Maintain the load for 3 min, continuously correcting for relaxation or loss in force, and then release. 8.5 Remove the specimen from the apparatus and immedi- ately remeasure in accordance with 8.2. Record the final thickness as T 2 .