ASTM D3823-2007 Standard Practice for Determining Ticket Numbers for Sewing Threads《测定缝纫缝线数的标准实施规程》.pdf

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1、Designation: D 3823 07Standard Practice forDetermining Ticket Numbers for Sewing Threads1This standard is issued under the fixed designation D 3823; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A numbe

2、r 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 practice establishes standard ticket numbers forsewing thread regardless of fiber content or type of thread.1.2 The values stated in i

3、nch-pound units are to be regardedas the standard; the values in English units are provided asinformation only and are not exact equivalents.1.3 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

4、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:2D 123 Terminology Relating to TextilesD 204 Test Methods for Sewing ThreadsD 1907 Test Method for Linear Density of Yarn (YarnNumbe

5、r) by the Skein MethodD 4849 Terminology Relating to Yarns and Fibers2.2 ANSI Standard:3ANSI/ASQC Z1.4 Sampling Procedures for Inspection byAttributes3. Terminology3.1 For all terminology relating to D13.58, Yarns andFibers, refer to Terminology D 4849.3.1.1 The following terms are relevant to this

6、standard:geige thread, sewing thread, ticket number.3.2 For all other terms are related to textiles, refer toTerminology D 123.4. Significance and Use4.1 This system of sewing thread ticket numbers wasdeveloped to overcome the confusion arising from the use bythe thread industry of a multiple number

7、 of undefined andunrelated ticketing systems.4.2 The practice is used by sewing thread manufacturers todetermine the ticket number to be assigned to a sewing thread.The ticket number is an indicator of the amount of raw fiber inthe thread. It is based on greige thread rather than finishedthread beca

8、use finishing processes such as bleaching, dyeing,stretching, mercerizing, or sewing finish application signifi-cantly change the apparent thread size so that it may become aninadequate indicator of raw fiber present. Because of theforegoing it is not practical to verify the ticket number bysizing t

9、he finished thread.5. Sampling5.1 LotUnless otherwise agreed upon between the pur-chaser and supplier, a lot shall be a discrete manufacturing unitproduced in a given period of time not to exceed a calendarmonth.5.2 Lot SampleSelect the number of specimens as di-rected in ANSI/ASQC Z1.4 using single

10、 sampling with ageneral inspection level of S1 and a 1.0 AQL.5.3 Laboratory SampleAs a laboratory sample for accep-tance testing, take each unit in the lot sample.5.4 Test SpecimensFrom each package in the laboratorysample, take one specimen.6. Requirements6.1 Sewing thread ticket numbers shall be b

11、ased on theaverage resultant yarn number and shall be designated asindicated in Table 1.7. Procedure7.1 Determine in tex the resultant yarn number of the greigethread as directed in Test Methods D 204.7.2 Over the most recent 6 months of a 1-year period inwhich the greige thread was manufactured, co

12、llect at least 100pairs of data, each consisting of a tex value and the productionrate at the time each tex value was obtained. If the greigethread of interest has not been produced in at least 6 of the prior12 months, collect at least 100 pairs of data consisting of a texvalue and the corresponding

13、 production rate covering theperiod(s) during which the thread was being produced.7.3 Calculate the weighted average of the resultant yarnnumber using Eq 1:1This practice is under the jurisdiction ofASTM Committee D13 on Textiles andis the direct responsibility of Subcommittee D13.58 on Yarns and Fi

14、bers.Current edition approved Jan. 1, 2007. Published January 2007. Originallyapproved in 1978. Last previous edition approved in 2001 as D 3823 01.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandar

15、ds volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken,

16、PA 19428-2959, United States.w 5 (tr/(r (1)where:w = weighted average of resultant yarn number, tex,t = single value of resultant yarn number, tex, andr = production rate associated with a single resultant yarnnumber, kg/unit time (lb/unit time).7.4 Use Table 1 to convert w to the thread ticket numb

17、er.8. Precision and Bias8.1 The precision and bias of this practice for testingresultant yarn number are as given in Test Method D 1907.9. Keywords9.1 sewing thread; ticket number; yarn numberASTM International takes no position respecting the validity of any patent rights asserted in connection wit

18、h 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 to revision at any time by the responsible techn

19、ical 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. Your comments will receive careful considerati

20、on 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 copyrighted by ASTM International, 100 Barr Har

21、bor 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

22、.astm.org).TABLE 1 Thread Ticket NumberResultant Yarn Number, TexATicket NumberUp to but not including 2 12 to but not including 3 23 to but not including 4 34 to but not including 5 45 to but not including 6 56 to but not including 7 67 to but not including 8 78 to but not including 9 89 to but not

23、 including 10 910 to but not including 12 1012 to but not including 14 1214 to but not including 16 1416 to but not including 18 1618 to but not including 21 1821 to but not including 24 2124 to but not including 27 2427 to but not including 30 2730 to but not including 35 3035 to but not including

24、40 3540 to but not including 45 4045 to but not including 50 4550 to but not including 60 5060 to but not including 70 6070 to but not including 80 7080 to but not including 90 8090 to but not including 105 90105 to but not including 120 105120 to but not including 135 120135 to but not including 15

25、0 135150 to but not including 180 150180 to but not including 210 180210 to but not including 240 210240 to but not including 270 240270 to but not including 300 270300 to but not including 350 300350 to but not including 400 350400 to but not including 450 400450 to but not including 500 450500 to but not including 600 500AThe ticket number for thread having resultant yarn numbers of 600 tex andgreater will be in steps of 100 for each 100 tex number increase in the resultantyarn number.D3823072