ASTM D3936-2017 Standard Test Method for Resistance to Delamination of the Secondary Backing of Pile Yarn Floor Covering《簇绒地毯第二层底布的脱层强度的测试方法》.pdf
《ASTM D3936-2017 Standard Test Method for Resistance to Delamination of the Secondary Backing of Pile Yarn Floor Covering《簇绒地毯第二层底布的脱层强度的测试方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D3936-2017 Standard Test Method for Resistance to Delamination of the Secondary Backing of Pile Yarn Floor Covering《簇绒地毯第二层底布的脱层强度的测试方法》.pdf(4页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D3936 17Standard Test Method forResistance to Delamination of the Secondary Backing ofPile Yarn Floor Covering1This standard is issued under the fixed designation D3936; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision,
2、the year 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.1. Scope1.1 This test method covers the measurement of the resis-tance to delamination of the secondary backing applie
3、d to somepile yarn floor coverings.1.2 This test method is applicable to all backings includingnatural manufactured fibers or attached cushion.1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are pro
4、vided for information onlyand are not considered standard.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 establish appro-priate safety and health practices and determine the applica-bil
5、ity of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the Wo
6、rld Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D76 Specification for Tensile Testing Machines for TextilesD123 Terminology Relating to TextilesD1776 Practice for Conditioning and Testing TextilesD4697 Guide for Maintaining Test Methods in
7、 the UsersLaboratory (Withdrawn 2009)3D5684 Terminology Relating to Pile Floor CoveringsE177 Practice for Use of the Terms Precision and Bias inASTM Test Methods3. Terminology3.1 For all other terminology related to Pile FloorCoverings, D13.21, see Terminology D5684.3.1.1 The following terms are rel
8、evant to this standard:attached cushion, carpet, constant-rate-of-extension, finished,finished pile yarn floor covering, floor covering, peak force,pile, pile yarn floor covering, resistance to delamination,secondary backing, textile floor covering, tufted fabric.3.2 For all other terminology relate
9、d to textiles, see Termi-nology D123.4. Summary of Test Method4.1 A specimen is separated manually for a distance ofabout 1.5 in. (38 mm). Each layer then is placed in opposingclamps of a tensile tester, and the force to continue theseparation for a specified distance is recorded. The peak forcesin
10、specified length intervals are averaged and the resistance todelamination calculated.5. Significance and Use5.1 This test method is used for acceptance testing ofcommercial shipments. Comparative tests as directed in 5.2may be advisable.5.2 In a case of a dispute arising from differences inreported
11、test results when using this test method, the purchaserand the supplier should conduct comparative tests to determineif there is a statistical bias between their laboratories. Compe-tent statistical assistance is recommended for the investigationof bias. As a minimum, the two parties should take a g
12、roup oftest samples that are as homogenous as possible and are froma lot of material of the type in question. The test samples thenshould be assigned randomly in equal numbers to eachlaboratory for testing. The average results from the twolaboratories should be compared using a statistical test foru
13、npaired data 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 purchaser and thesupplier must agree to interpret future test results with consid-eration to the known bias.1This test method is u
14、nder the jurisdiction of ASTM Committee D13 on Textilesand is the direct responsibility of Subcommittee D13.21 on Pile Floor Coverings.Current edition approved March 1, 2017. Published April 2017. Originallyapproved in 1980. Last previous edition approved in 2012 as D3936 12. DOI:10.1520/D3936-17.2F
15、or referenced ASTM standards, visit the ASTM website, www.astm.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 refer
16、enced onwww.astm.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for th
17、eDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.15.3 This test method is useful to evaluate quality and costcontrol during the manufacture of pile yarn floor covering.Both appearance and performanc
18、e of the pile floor coveringcan be affected by delamination of the secondary backing.6. Apparatus6.1 Tensile Testing MachineA constant-rate-of extension(CRE) type conforming to Specification D76 with a constantrate of speed of 12 6 0.5 in./min (304 6 10 mm/min) ispreferred. A constant-rate-of-traver
19、se (CRT) type tensile test-ing machine conforming to Specification D76 and operated atthe same speed is permitted. There may be no overall correla-tion with CRE-type and CRT-type testing machines.Consequently, the two machines cannot be used interchange-ably. In case of controversy, the CRE-type tes
20、ting machineshall prevail.6.2 Clamps and Jaw FacesThe use of hydraulic or pneu-matic clamping systems with a minimum of 1 by 3 in. (25 by76 mm) serrated or padded faces designed to minimizeslippage in the clamps during testing is recommended. Manualclamping is permitted providing no slippage of the
21、specimen isobserved. The faces shall be parallel and have matching centerswith respect to one another in the same clamp and to thecorresponding jaw face of the other clamp.6.3 Tape, self adhering, cloth reinforced tape has been foundsuitable.7. Sampling7.1 Lot SampleAs a lot sample for acceptance te
22、sting, takeat random the number of rolls or pieces of pile yarn floorcovering as directed in an applicable material specification orother agreement between the purchaser and the supplier.Consider the rolls or pieces of pile yarn floor covering to be theprimary sampling units. In the absence of such
23、an agreement,take one roll or piece from the lot to be tested.NOTE 1An adequate specification or other agreement between thepurchaser and supplier requires taking into account the variability betweenrolls or pieces of pile yarn floor covering and between specimens from aroll or pieces of pile yarn f
24、loor covering to provide a sampling plan witha meaningful producers risk, consumers risk, acceptable quality level,and limiting quality level.7.2 Laboratory SampleFor acceptance testing, take alaboratory sampling unit that is a minimum of 18 in. (457 mm)in the machine direction by full width (cross
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