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Description of ASTM-D2941 2013ASTM D2941 - 13Standard Test Method for Measuring Break Pattern of Leather (Break Scale)Active Standard ASTM D2941 | Developed by Subcommittee: D31.03 Book of Standards Volume: 15.04 ASTM D2941Significance and Use 4.1 Break depends on the fiber structure and on the relation between the grain and other strata of the leather. A fine break, or a grain pattern which shows many fine wrinkles when it is bent to form a concave surface, as it is in the vamp of a shoe, reflects favorably upon appearance and serviceability. A coarse break, on the other hand, where a few coarse wrinkles are formed on bending the grain to form a concave surface may indicate that the grain layer is separating from the corium or main stratum as in pipey leather. Shoes made from fine-break leather are more attractive and tend to wear longer than shoes made from coarse-break leather. (See MIL-STD?663 and the ALCA Journal). 4 1. Scope 1.1 This test method covers the measurement of the break pattern of shoe upper leather using an arbitrary break scale. 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.
ASTM Standards D1517 Terminology Relating to Leather Keywords break scale; grain pattern; loose finish; pipey; wrinkles ; ICS Code ICS Number Code 59.140.30 (Leather and furs) DOI: 10.1520/D2941-13 ASTM International is a member of CrossRef. ASTM D2941The following editions for this book are also available...This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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