ASTM D3936-2005 Standard Test Method for Resistance to Delamination of the Secondary Backing of Pile Yarn Floor Covering《绒头纱线地板覆盖物的第二层背衬耐脱层性的标准试验方法》.pdf
《ASTM D3936-2005 Standard Test Method for Resistance to Delamination of the Secondary Backing of Pile Yarn Floor Covering《绒头纱线地板覆盖物的第二层背衬耐脱层性的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D3936-2005 Standard Test Method for Resistance to Delamination of the Secondary Backing of Pile Yarn Floor Covering《绒头纱线地板覆盖物的第二层背衬耐脱层性的标准试验方法》.pdf(4页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D 3936 05Standard Test Method forResistance to Delamination of the Secondary Backing ofPile Yarn Floor Covering1This standard is issued under the fixed designation D 3936; 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 (e) 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 app
3、lied 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 either SI units or inch-pound unitsare to be regarded separately as the standard. Within the textthe inch-pound units are shown i
4、n parentheses. The valuesstated in each system are not exact equivalents; therefore, eachsystem must be used independently of the other. Combiningvalues from the two systems may result in nonconformancewith the specification. In case of referee decisions, the SI unitsshall prevail.1.4 This standard
5、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-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM S
6、tandards:2D76 Specification for Tensile Testing Machines for TextilesD 123 Terminology Relating to TextilesD 1776 Practice for Conditioning Textiles for TestingD 4697 Guide for Maintaining Test Methods in the UsersLaboratoryD 5684 Terminology Relating to Pile Floor Coverings3. Terminology3.1 For all
7、 other terminology related to Pile Floor Cover-ings, D13.21, see Terminology D 5684.3.1.1 The following terms are relevant 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, res
8、istance to delamination,secondary backing, textile floor covering, tufted fabric.3.2 For all other terminology related to textiles, see Termi-nology D 123.4. Summary of Test Method4.1 A specimen is separated manually for a distance ofabout 38 mm (1.5 in.). Each layer then is placed in opposingclamps
9、 of a tensile tester, and the force to continue theseparation for a specified distance is recorded. The peak forcesin 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
10、. Comparative tests as directed in 5.2may be advisable.5.2 In a case of a dispute arising from differences inreported 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-
11、tent statistical assistance is recommended for the investigationof bias. As a minimum, the two parties should take a group 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 eac
12、hlaboratory for testing. The average results from the twolaboratories should be compared using a statistical test forunpaired 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 an
13、d thesupplier must agree to interpret future test results with consid-eration to the known bias.5.3 This test method is useful to evaluate quality and costcontrol during the manufacture of pile yarn floor covering.Both appearance and performance of the pile floor coveringcan be affected by delaminat
14、ion of the secondary backing.6. Apparatus6.1 Tensile Testing MachineA constant-rate-of extension(CRE) type conforming to Specification D76with a constantrate of speed of 300 6 10 mm/min (12 6 0.5 in./min) is1This test method is under the jurisdiction of ASTM Committee D13 on Textilesand is the direc
15、t responsibility of Subcommittee D13.21 on Pile Yarn Coverings.Current edition approved March 1, 2005. Published April 2005. Originallyapproved in 1980. Last previous edition approved in 2003 as D 3936 03.Discontinued November 1996 and reinstated as D 3936 97.2For referenced ASTM standards, visit th
16、e 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.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,
17、United States.preferred. A constant-rate-of-traverse (CRT) type tensile test-ing machine conforming to Specification D76and operated atthe same speed is permitted. There may be no overall correla-tion with CRE-type and CRT-type testing machines. Conse-quently, the two machines cannot be used interch
18、angeably. Incase of controversy, the CRE-type testing machine shallprevail.6.2 Clamps and Jaw FacesThe use of hydraulic orpneumatic clamping systems with a minimum of 25 mm 3 75mm (1 in. 3 3 in.) serrated or padded faces designed tominimize slippage in the clamps during testing is recom-mended. Manu
19、al clamping is permitted providing no slippageof the specimen is observed. The faces shall be parallel andhave matching centers with respect to one another in the sameclamp and to the corresponding jaw face of the other clamp.6.3 Tape, self adhering, cloth reinforced tape has been foundsuitable.7. S
20、ampling7.1 Lot SampleAs a lot sample for acceptance testing,take at 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
21、 be theprimary sampling units. In the absence of such 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
22、 between specimens from aroll or pieces of pile yarn floor 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 460 mm
23、(18 in.)in the machine direction by full width (cross machine direc-tion) from each roll or piece in the lot sample.7.3 Test SpecimensFrom each laboratory sampling unit,cut three specimens with the longer direction parallel to themachine direction. Consider the long dimension as the direc-tion of th
24、e test.7.3.1 Secondary Back of Textile ConstructionCut thespecimens 75 6 2 mm by at least 150 mm (3 6 0.08 in. by atleast 6 in.).7.3.2 Attached Cushion Construction Cut the specimens50 6 2 mm by at least 150 mm (2 6 0.08 in. by at least 6 in.).7.3.3 Specimen Sampling and Labelling Take specimens,rep
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