ASTM D1777-1996(2015) Standard Test Method for Thickness of Textile Materials《纺织材料厚度的标准试验方法》.pdf
《ASTM D1777-1996(2015) Standard Test Method for Thickness of Textile Materials《纺织材料厚度的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D1777-1996(2015) Standard Test Method for Thickness of Textile Materials《纺织材料厚度的标准试验方法》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D1777 96 (Reapproved 2015)Standard Test Method forThickness of Textile Materials1This standard is issued under the fixed designation D1777; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A n
2、umber in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers the measurement of the thick-ness of most textile materials.1.2 This test method applies to most fabrics includi
3、ngwoven fabrics, air bag fabrics, blankets, napped fabrics, knittedfabrics, layered fabrics, and pile fabrics. The fabrics may beuntreated, heavily sized, coated, resin-treated, or otherwisetreated. Instructions are provided for testing thickness, exceptas provided for in another standard such as li
4、sted in Section 2.1.3 The values stated in SI units are to be regarded as thestandard. The values stated in inch-pound may be approximate.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to
5、establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD1776 Practice for Conditioning and Testing TextilesD2904 Practice for Interlaboratory Testing of
6、 a Textile TestMethod that Produces Normally Distributed Data (With-drawn 2008)3D2906 Practice for Statements on Precision and Bias forTextiles (Withdrawn 2008)32.2 ASTM Adjuncts:TEX-PAC43. Terminology3.1 DefinitionsFor definitions of textile terms used in thistest method, see Terminology D123.3.1.1
7、 The following terms are relevant to this standard:cross-machine direction, machine direction, pressure, andthickness.4. Summary of Test Method4.1 A specimen is placed on the base of a thickness gaugeand a weighted presser foot lowered. The displacement be-tween the base and the presser foot is meas
8、ured as the thicknessof the specimen.5. Significance and Use5.1 This test method is considered satisfactory for accep-tance testing of commercial shipments since current estimatesof between-laboratory precision are acceptable, and this testmethod is used extensively in the trade for acceptance testi
9、ng.5.1.1 In case of a dispute arising from differences inreported test results when using this test method for acceptancetesting of commercial shipments, the purchaser and the sup-plier should conduct comparative tests to determine if there isa statistical bias between their laboratories. Competent
10、statis-tical assistance is recommended for the investigation of bias.As a minimum, the two parties should take a group of testspecimens that are as homogeneous as possible and that arefrom a lot of material of the type in question. Test specimensthen should be randomly assigned in equal numbers to e
11、achlaboratory for testing. The average results from the twolaboratories should be compared using the appropriate statis-tical analysis and an acceptable probability level chosen by thetwo parties before testing is begun. If a bias is found, either itscause must be found and corrected, or the purchas
12、er and thesupplier must agree to interpret future test results with consid-eration to the known bias.5.2 Thickness is one of the basic physical properties oftextile materials. In certain industrial applications, the thick-ness may require rigid control within specified limits. Bulk andwarmth propert
13、ies of textile materials are often estimated fromtheir thickness values, and thickness is also useful in measuringsome performance characteristics, such as before and afterabrasion and shrinkage.1This test method is under the jurisdiction of ASTM Committee D13 on Textilesand is the direct responsibi
14、lity of Subcommittee D13.59 on Fabric Test Methods,General.Current edition approved July 1, 2015. Published September 2015. Originallyapproved in 1960. Last previous edition approved in 2011 as D1777 96(2011)1.DOI: 10.1520/D1777-96R15.2For referenced ASTM standards, visit the ASTM website, www.astm.
15、org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.4A PC program on floppy disk for analyzing
16、 Committee D13 interlaboratorydata are available from ASTM Headquarters. For a 312-in. disk, request PCN:12-429040-18. For a 514-in. disk, request PCN:12-429041-18.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States15.3 The thickness valu
17、e of most textile materials will varyconsiderably depending on the pressure applied to the speci-men at the time the thickness measurement is taken. In allcases, the apparent thickness varies inversely with the pressureapplied. For this reason, it is essential that the pressure bespecified when disc
18、ussing or listing any thickness value.5.4 When using this test method for measuring the thicknessof textile materials, the primary method for the specificmaterial such as listed in the Referenced Document sectionshall take precedence over the directions described in this testmethod, unless specifica
19、lly provided for in that test method.This test method is used in its entirety when no test method formeasuring thickness is available for the specific material to betested or unless otherwise specified in a material specificationor contract order.6. Apparatus6.1 Thickness Gauge, having dimensions ap
20、propriate to thematerial to be tested as specified in Table 1, unless otherwisespecified in a material specification or contract order.Acircularpresser foot commonly is used for most materials; however, forcertain materials, such as narrow tapes, a rectangular foot ismore appropriate when agreed upo
21、n between the purchaser andthe supplier.6.1.1 Automatic Microprocessor Data Gathering Systems,optional.6.1.2 Spring Force or Compression Test Apparatus, may besubstituted for the dead-weight-type thickness gauge providingthey meet the specified conditions cited in Table 1.6.2 Cutting Dies or Templat
22、es, to cut specimens havingminimum dimensions at least 20 % greater than any dimensionof the presser foot to be used in measuring the thickness(optional).7. Sampling and Test Specimens7.1 Lot SampleAs a lot sample for acceptance testing,randomly select the number of rolls or pieces of fabric directe
23、din an applicable material specification or other agreementbetween the purchaser and the supplier. Consider the rolls orpieces of fabric to be the primary sampling units. In theabsence of such an agreement, take the number of fabric rollsspecifed in Table 2.NOTE 1An adequate specification or other a
24、greement between thepurchaser and the supplier requires taking into account the variabilitybetween rolls or pieces of fabric and between specimens from a swatchfrom a roll or piece of fabric to provide a sampling plan with a meaningfulproducers risk, consumers risk, acceptable quality level, and lim
- 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
10000 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:
- ASTMD177719962015STANDARDTESTMETHODFORTHICKNESSOFTEXTILEMATERIALS 纺织 材料 厚度 标准 试验 方法 PDF

链接地址:http://www.mydoc123.com/p-510447.html