1、Designation: D6015 10D6015 14Standard Test Method forStatic Water Absorption of Leather1This standard is issued under the fixed designation D6015; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number
2、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 U.S. Department of Defense.1. Scope1.1 This test method covers the determination of the amount
3、of water absorbed by leather at 23 6 2C by immersion under staticconditions. It may be used on all types of 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 mathematicalconversions to SI
4、 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 responsibilityof the user of this standard to establish appropriate safety and health practices and deter
5、mine 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 TestingD2813 Practice for Sampling Leather for Physical and Chemical Tests3. Terminology3.1 Fo
6、r definitions of leather terms used in this test method refer to Terminology D1517.4. Summary of Test Method4.1 In this test method the amount of water absorbed by a leather specimen is measured at room temperature with all surfacesexposed to water.5. Significance and Use5.1 This test method is used
7、 to determine compliance with specifications for water absorption of upper leather. The significanceof the test method is limited by the static conditions employed, and the results do not reflect the water absorption under dynamicconditions of flexing.6. Apparatus6.1 Beaker, 1000 mL.6.2 Balance, sen
8、sitive to 0.01 g.6.3 Blotting Paper3.6.4 Timer.6.5 1000 g of weight.1 This test method is under the jurisdiction of ASTM Committee D31 on Leather and is the direct responsibility of Subcommittee D31.03 on Footwear.Current edition approved Oct. 1, 2010May 1, 2014. Published October 2010June 2014. Ori
9、ginally approved in 1996. Last previous edition approved in 20052010 asD6015 - 00D6015 - 10.(2005). DOI: 10.1520/D6015-10.10.1520/D6015-14.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume
10、information, refer to the standards Document Summary page on the ASTM website.3 Blotting paper suitable to meet requirements of this method can be purchased at either: AATCC, Order #08344a, P.O. Box 12215, Research Triangle Park, NC27709-2215, www.aatcc.org or Testfabrics Inc., P.O. Box 26, West Pit
11、tiston, PA 18643, .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 technically possible to adequately depict all changes accurately, ASTM recommends that user
12、s 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 Box C700, West Conshohocken, PA 19428-2959. United States17. Test Specimen7.1 When taki
13、ng test specimens from skins or hides refer to Practice D2813.7.2 The test specimen shall be a square of leather approximately 4 by 4 in. (102 by 102 mm).7.3 Unless otherwise specified in the detail specification, one specimen from each test unit of sample shall be tested.7.4 Prior to testing, the s
14、pecimen shall be conditioned according to Practice D1610.8. Procedure8.1 Weigh the specimen to the nearest 0.01 g and record the mass as W1.8.2 One to three specimens shall be completely immersed in a 1000 mL beaker of distilled water at 23C 6 2C. This shouldbe done in such a manner that the surface
15、 of the specimens do not touch each other.8.3 After 1 h 61 min immersion, the specimens shall be removed from the beaker and the surface water from each removedby lightly blotting the specimen with blotting paper prior to weighing.8.4 Blotting paper that has been cut to the same size as the leather
16、test specimen shall be used. A 4 by 4 in. (102 by 102 mm)non-water absorbing, rigid flat plate shall be placed on a level surface. Two died squares of blotting paper shall be stacked uponthe rigid flat plate. One test specimen shall be removed from the container and placed, grain up on top of the bl
17、otting squares. Twomore blotting paper squares shall be placed upon the first specimen. A second specimen shall be removed from the container andplaced grain up upon the stack. This procedure shall be repeated until all the specimens are removed from the container andstacked. Two squares blotting pa
18、per shall be placed on the last specimen added to the stack. The stack shall be topped by a secondnon-water absorbing, rigid flat plate. The entire stack shall be immediately squared (that is, the edges of the specimen, blotters andplates shall be made flush), and 1000 g weight shall be centered on
19、top of the upper plate. Note: the total time required for removingthe specimen from the container forming the stack and placing the 1000 g weight upon the stack shall not exceed 3 min. The 1000g weight shall remain on the stack for 5 min. At the end of 5 min, the weight shall be removed. The stack,
20、held together by theplates, shall be turned upside down and in this position returned to the level surface. The 1000 g weight shall again by centeredon top of the upper plate and allowed to remain for 5 min. The alignment of the stack shall not be disturbed during this procedure.At the end of 5 min
21、the weight, top plate, and first two blotters shall be removed.8.5 The specimen shall then be weighed immediately and the mass recorded as W2.9. Calculation9.1 The amount of water absorbed by each specimen shall be calculated as follows:Water absorbed,%5W22W 1!/W1#3100 (1)where:W1 = weight of the or
22、iginal specimen, grams, andW2 = weight of the specimen after water immersion, grams.10. Report10.1 The amount of water absorbed by the specimen shall be reported to the nearest 0.01 %.11. Precision and Bias11.1 This test method is adopted from the procedures of the Federal Government where it has lo
23、ng been in use. It was approvedfor publication before the inclusion of precision and bias statements was mandated. The original interlaboratory test data is nolonger available. The user is cautioned to verify by use of reference materials, if available, that the precision and bias of this testmethod
24、 is adequate for contemplated use.D6015 14212. Keywords12.1 leather; static; water absorptionASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determinati
25、on of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdr
26、awn.Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your c
27、omments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single
28、or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).D6015 143
