ASTM D6283-2012 5069 Standard Test Method for Tuft Element Length of Uncoated Pile Yarn Floor Coverings《非包覆的绒头纱线地板覆盖物绒头长度的标准试验方法》.pdf
《ASTM D6283-2012 5069 Standard Test Method for Tuft Element Length of Uncoated Pile Yarn Floor Coverings《非包覆的绒头纱线地板覆盖物绒头长度的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D6283-2012 5069 Standard Test Method for Tuft Element Length of Uncoated Pile Yarn Floor Coverings《非包覆的绒头纱线地板覆盖物绒头长度的标准试验方法》.pdf(4页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D6283 12Standard Test Method forTuft Element Length of Uncoated Pile Yarn Floor Coverings1This standard is issued under the fixed designation D6283; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revi
2、sion. 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 tuft lengthand pile yarn length of uncoated pile floor coverings.1.2 Usually the tuf
3、t elements measured as directed in thistest method will each be bound at only one binding site, butthis test method also may be used for tuft elements bound atmore than one binding site, provided that every tuft elementmeasured is bound at the same number of binding sites.1.3 The values stated in in
4、ch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 This practice does not purport to address all of thesafety concerns, if any, associated with its use. It is
5、theresponsibility of the user of this practice to 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 Tex
6、tilesD2904 Practice for Interlaboratory Testing of a Textile TestMethod that Produces Normally Distributed Data3D2906 Practice for Statements on Precision and Bias forTextiles3D5684 Terminology Relating to Pile Floor Coverings3. Terminology3.1 For definitions of terms relating to Pile Floor Covering
7、s,D13.21, refer to Terminology D5684.3.1.1 The following terms are relevant to this standard:carpet, cut pile yarn floor covering, finished, finished pile yarnfloor covering, floor covering, loop pile yarn floor covering,pile, pile yarn floor covering, textile floor covering, tuft, tuftelement, tuft
8、 leg, tuft length, tufted fabric.3.2 For definitions of other terms related to textiles, refer toTerminology D123.4. Summary of Test Method4.1 The individual tuft elements of like character (cut orloop, and height) are removed from the test sample and placed,one at a time, in a grooved holder that m
9、aintains the tuft fibersin a straight line while the length of the tuft element ismeasured with a graduated scale and a magnifying glass.4.2 In loop pile yarn floor covering, adjacent elements arefirst separated by cutting the connecting loops at the midpointof the bend with sharp scissors before th
10、e tuft elements arewithdrawn from the backing fabric.5. Significance and Use5.1 The determination of the tuft length of pile yarn floorcovering is useful in quality and cost control during themanufacture of pile yarn floor covering. Both appearance andperformance can be affected by changes in this c
11、haracteristic.5.2 In case there are disputable differences between reportedtest results for two or more laboratories, comparative testsshould be performed to determine if there is a statistical biasbetween them, using competent statistical assistance. At aminimum, test samples should be used that ar
12、e as homoge-neous as possible, that are drawn from the material from whichdisputable test results were obtained, and that are assignedrandomly in equal numbers to each laboratory for testing. The1This test method is under the jurisdiction of ASTM Committee D13 on Textilesand is the direct responsibi
13、lity of Subcommittee D13.21 on Pile Floor Coverings.Current edition approved Feb. 1, 2012. Published March 2012. Originallyapproved in 1998. Last previous edition approved in 2005 as D628305. DOI:10.1520/D6283-12.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Cu
14、stomer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.FIG. 1 Cross-Section of Tufted Pile Yarn Floor Coveri
15、ng1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.test results from the two laboratories should be compared usinga statistical test for unpaired data, at a probability level chosenprior to the testing series. If a bias is found, eith
16、er its causemust be found and corrected, or future test results must beadjusted in consideration of the known bias.6. Apparatus6.1 Grooved Specimen HoldersThe holder shall be of alength at least 10 % longer than the longest tuft element to bemeasured. A 4 in. (100 mm) length normally will be adequat
17、e.6.1.1 The grooves shall be a V-shaped cross-section with a1.05 rad (60) angle at the bottom. The depth of the groovesand width across the top of the grooves should accommodate avariety of yarns according to the following example:Yarns Groove Widths, in. (mm)Coarse 0.18 (4.6)Medium 0.13 (3.3)Fine 0
18、.08 (2.0)6.1.2 Additional grooves of intermediate width also may beused.6.2 Scale, at least 4 in. (100 mm) long, graduated in 0.10-in.(2 mm) divisions.6.2.1 If the scale is not transparent, it shall be no thickerthan 0.04 in. (1 mm).6.3 Cover Plate, clear plastic to be used when nontranspar-ent scal
19、e is used.6.4 Magnifying Glass,23 to 53, mounted above the holderto permit centering the glass immediately above the cut ends ofthe tuft to avoid parallax in reading the scale.6.5 Scissors, with sharp points.7. Sampling7.1 The basic sampling unit of uncoated pile yarn floorcovering is a production r
20、oll.7.2 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 t
21、o bethe primary sampling units. In the absence of such agreement,take one roll or piece from the lot to be tested.NOTE 1An agreement between the purchaser and supplier requirestaking into account the variability between rolls or pieces of pile yarn floorcovering and between specimens from a roll or
22、pieces of pile yarn floorcovering to provide a sampling plan with a meaningful producers risk,consumers risk, acceptable quality level, and limiting quality level.7.3 Test SampleThe test sample shall consist of a fullwidth section of pile yarn floor covering cut from one end ofeach roll in the lot s
23、ample and shall be at least 4 in. (100 mm)longer than the specimens required for the tests being con-ducted. Do not cut any laboratory sample from the seam end ofthe production roll.7.4 Test Sample AreaThe test sample area(s) is designatedon the laboratory sample as follows.7.4.1 For laboratory samp
24、les 120 in. (3000 mm) wide orwider, designate three test sample areas, one from each edgeportion, no nearer to the edge than 5 % of the pile yarn floorcovering width and one from the center portion.7.4.2 For laboratory samples less than 120 in. (3000 mm)and at least 60 in. (1500 mm) wide, designate
- 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。
最后一页预览完了!喜欢就下载吧,查找使用更方便
5000 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:
- ASTMD628320125069STANDARDTESTMETHODFORTUFTELEMENTLENGTHOFUNCOATEDPILEYARNFLOORCOVERINGS 非包覆 纱线 地板 覆盖

链接地址:http://www.mydoc123.com/p-522055.html