ASTM D1813-2013 Standard Test Method for Measuring Thickness of Leather Test Specimens《皮件试样厚度测量的标准试验方法》.pdf

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1、Designation: D1813 00 (Reapproved 2010)D1813 13Standard Test Method forMeasuring Thickness of Leather Test Specimens1This standard is issued under the fixed designation D1813; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the yea

2、r of last revision. 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 meas

3、urement of the thickness of leather test specimens in which the dimensions of thespecimens are used directly in determining the results of tests for physical properties. 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 g

4、iven in parentheses are mathematicalconversions 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 responsibilityof the user of this standard to establ

5、ish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D1610 Practice for Conditioning Leather and Leather Products for Testing3. Significance and Use3.1 This test method shall be used where precise

6、 dimensions are necessary for calculation of properties expressed in physicalunits. It is not intended to replace practical thickness measurements based on commercial portable tools, nor is it implied thatthickness measurements made by the two procedures will agree exactly.4. Apparatus4.1 Gage, equi

7、pped with a dial micrometer, a flat anvil, and a presser foot loaded by a dead mass.34.2 Dial, graduated to read to the nearest 0.01 mm, with small second dial graduated to read to the nearest 1 mm or to the nearest0.001 in. and 0.1 in. respectively.4.3 Anvil, flat, with a diameter of 0.395 6 0.02 i

8、n. (10 6 0.5 mm) and projecting 0.1 in. (2.5 mm) from the surface of a flatcircular platform about 2 in. (50 mm) in diameter.4.4 Presser Foot, having a flat surface 0.395 6 0.02 in. (10 6 0.5 mm) in diameter, and can be lifted by a lever at least 13 mmor 0.5 in. It shall be dead-mass loaded to exert

9、 a total load of 13.86 6 0.35 oz (393 6 10 g) on the specimen. The load is equivalentto 500 g/cm2. The contacting surface of the presser foot and the surface of the anvil shall be parallel within 0.0001 in. (0.0025 mm).5. Test Specimen5.1 The test specimen shall be a piece of leather that has been c

10、onditioned according to Practice D1610 and cut to thedimensions required for the particular physical test.1 This test method is under the jurisdiction of ASTM Committee D31 on Leather and is the direct responsibility of Subcommittee D31.07 on Physical Properties. Thistest method was developed in coo

11、peration with the American Leather Chemists Assn (Standard Method E41983).Current edition approved Oct. 1, 2010May 1, 2013. Published January 2011May 2013. Originally approved in 1960. Last previous edition approved in 20052010 asD1813 00(2005).00(2010). DOI: 10.1520/D1813-00R10.10.1520/D1813-13.2 F

12、or referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 The sole source of supply of the dead-mass type gage known to

13、the committee at this time is B.C. Ames, Model #70-1355 (formerly Frank E. Randall Co., Inc., 246Ash Street, Watham, MA 02154.Inc.) 1644 Concord Street, Framingham, MA 01701. If you are aware of alternative suppliers, please provide this information to ASTMHeadquarters. Your comments will receive ca

14、reful consideration at a meeting of the responsible technical committee,1 which you may attend.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 pos

15、sible 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 Box C700, W

16、est Conshohocken, PA 19428-2959. United States16. Procedure6.1 Place the specimen on the anvil, and lower the presser foot gently (do not drop) until it rests on the specimen. Take thereading 5 s after the full load is reached. Read the thickness to the nearest 0.01 mm or 0.001 in.6.2 Take the numbe

17、r of thickness measurements at the desired locations as specified in the particular physical test method beingused.7. Report7.1 The report shall include the following:7.1.1 Thickness of each specimen, reported as the average of the thickness measurements taken, and7.1.2 Thickness of the sample, if p

18、ertinent, reported as the average thickness of all the specimens measured.8. Precision8.1 The coefficient of variation of measurements of thickness of consecutive specimens by this method is less than 5.0%.9. Keywords9.1 leather; thicknessASTM International takes no position respecting the validity

19、of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject t

20、o revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters.

21、Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments 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 c

22、opyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single 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/).D1813 132

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