ASTM D6075-2013 red 1250 Standard Test Method for Cracking Resistance of Leather《皮革耐开裂性的标准试验方法》.pdf
《ASTM D6075-2013 red 1250 Standard Test Method for Cracking Resistance of Leather《皮革耐开裂性的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D6075-2013 red 1250 Standard Test Method for Cracking Resistance of Leather《皮革耐开裂性的标准试验方法》.pdf(3页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D6075 00 (Reapproved 2010)D6075 13Standard Test Method forCracking Resistance of Leather1This standard is issued under the fixed designation D6075; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revis
2、ion. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This test method covers the determination of th
3、e resistance of leather to cracking when the leather is bent or folded withthe grain (or finish) surface on the outside of the bend. Heavy leathers (for example, harness, belt, strap, bag, case, and so forth)are usually bent around a mandrel using either mechanical resistance (for example, clamp, vi
4、se, and so forth) or by hand. Lighterleathers (for example, shoe upper, upholstery, garment, glove, and so forth) are usually given a sharp double-fold (crosswise) bendafter cooling to a low temperature. This test method does not apply to wet blue.1.2 The values stated in SI units are to be regarded
5、 as the standard. The values given in parentheses are 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 responsibilityof the user of this standard to establish appropriate safety and health practices and determin
6、e the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D1517 Terminology Relating to LeatherD1610 Practice for Conditioning Leather and Leather Products for TestingD1813 Test Method for Measuring Thickness of Leather Test Specimens3. Terminology3.1 For d
7、efinitions of general leather terms used in this test method, refer to Terminology D1517.3.2 Definitions:3.2.1 finish crackingthe appearance of cracks (that is, ruptures) in the finish of leather which may extend through the finishlayer to the surface of the crust leather or deeper.3.2.2 grain crack
8、ingthe appearance of cracks (that is, ruptures of the grain enamel) on the grain surface of the leather whichmay even extend deeper into the leather cross section.4. Summary of Test Method4.1 A specimen of leather is conditioned and then bent by one of three procedures. The grain (or finish) surface
9、 of the bentspecimen is then examined for the appearance of any cracks or ruptures in the area around the bend.4.1.1 One bending procedure for heavier leathers involves a mandrel rod, a metal bar with thickness equal to the diameter ofthe mandrel, and a large clamp or vise to force and hold the leat
10、her in the bent configuration around the mandrel with the metalbar placed between the flesh surfaces of the bent leather.4.1.2 A second bending procedure for heavier leathers involves bending the leather around a mandrel by hand and forcing andholding the leather so the flesh surfaces of the bent le
11、ather are in contact.1 This test method is under the jurisdiction of ASTM Committee D31 on Leather and is the direct responsibility of Subcommittee D31.01 on Vegetable Leather. This testmethod is a combination of three methods (that is, Methods 4011, 4021, and 7211) that were part of Federal Test Me
12、thod Standard No. 311. This test method was developedin cooperation with the U.S. Defense Personnel Support Center, Directorate of Clothing and Textiles, Philadelphia, PAand the U.S.Army Natick Research, Development andEngineering Center Natick, MA.Current edition approved April 1, 2010May 1, 2013.
13、Published May 2010May 2013. Originally approved in 1997. Last previous edition approved in 20052010 asD6075 00 (2005).(2010). DOI: 10.1520/D6075-00R10.10.1520/D6075-13.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual
14、Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be tec
15、hnically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO
16、 Box C700, West Conshohocken, PA 19428-2959. United States14.1.3 A third bending procedure for lighter leathers involves cooling the leather specimen and then creating a sharp double(crosswise) fold while the specimen remains in the cold chamber.5. Significance and Use5.1 This test method is designe
17、d to determine the cracking resistance of the grain or finish surface of leather on a pass/fail basis.This test method attempts to replicate the conditions that may be encountered by leather that is bent around a buckle frame or otheranchoring device, folded over in seams or welts, and so forth. The
18、 cracking resistance of leather is influenced by many factors suchas quantity, location, and type of fatliquoring materials; moisture content; thickness; the presence of defects or scar tissue, or both;the presence of processing damages to the skin or hide tissue; finish system formulation, and so f
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
5000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ASTMD60752013RED1250STANDARDTESTMETHODFORCRACKINGRESISTANCEOFLEATHER 皮革 开裂 标准 试验 方法 PDF

链接地址:http://www.mydoc123.com/p-521459.html