1、Designation: D2260 03 (Reapproved 2018)Standard Tables ofConversion Factors and Equivalent Yarn Numbers Measuredin Various Numbering Systems1This standard is issued under the fixed designation D2260; the number immediately following the designation indicates the year oforiginal adoption or, in the c
2、ase of revision, 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 These tables include (1) a series of conversion factorsrequired to convert the number of
3、a yarn measured in a specificsystem to the equivalent number measured in various othersystems (see Table 1), and (2) specific equivalent numbers foryarns measured in various systems (see Table 2).1.2 The content is basically consistent with recommenda-tions of the International Organization for Stan
4、dardization(ISO) Standard 2947.1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 This standard does not purport to address all of t
5、hesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in acco
6、r-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 World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 AST
7、M Standards:2D123 Terminology Relating to TextilesD4849 Terminology Related to Yarns and FibersSI10 Standard for Use of the International System of Units(SI): The Modern Metric System32.2 ISO Standard:Standard 2947 TextilesIntegrated Conversion Table for Re-placing Traditional Yarn Numbers by Rounde
8、d Numbersin the Tex System42.3 NIST Standard:NIST Circular M121, January 193653. Terminology3.1 Refer to Terminology D4849 for definition of thefollowing ters used in this standard: American graincount;cotton count; cut, in asbestos and glass yarns, cut, in woolyarns; denier; direct yarn numbering s
9、ystems; grain, in yarnspinning; grain, in measuring mass; indirect yarn numberingsystem; linear density; lea, in linen yarns; metric count; run, inthe american woolen system; tex; worsted count; yarn number;and yarn numbering system.3.2 Refer to Terminology D123 for definitions of otherterms used in
10、 this standard.4. Conversion Factors for Equivalent Yarn Numbers4.1 Calculate any equivalent value using the appropriatefactor listed in Table 1.5. Use of Previously Calculated Equivalent YarnNumbers5.1 For a specific number in a stated system, read theequivalent in the various other systems from Ta
11、ble 2.5.2 With a few exceptions, fractional traditional indirectcounts have been omitted from Table 2; the rounded tex systemvalues for most fractional traditional indirect counts can beobtained by interpolation.1These tables are under the jurisdiction of ASTM Committee D13 on Textilesand are the di
12、rect responsibility of Subcommittee D13.58 on Yarns and Fibers.Current edition approved July 1, 2018. Published July 2018. Originally approvedin 1964. Last previous edition approved in 2013 as D2260 03 (2013). DOI:10.1520/D2260-03R18.2For referenced ASTM standards, visit the ASTM website, www.astm.o
13、rg, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Excerpts from SI10, Standard for Use of the International System of Units (SI):The Modern Metric System can be found in the An
14、nual Book of ASTM Standards,Vols 07.01 and 07.02. The standard is available as a separate publication and appearsin its entirety in Vol 14.02.4Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.5Available from National Instit
15、ute of Standards and Technology (NIST), 100Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http:/www.nist.gov.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationa
16、lly recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.16. Implementation of the Tex Yarn Numbering System6.1 I
17、n Table 2, to encourage the implementation of the texsystem in the United States, rounded tex values were chosen toaccommodate as many yarn numbers as possible for thetraditional yarn numbering systems without encroaching onestablished tolerances. In addition to the rounded tex systemvalues, the dec
18、itex (dtex) equivalents have been includedbecause they can be used throughout most of the count rangewithout employing decimal fractions. The choice of unit isentirely a matter to be determined by each sector of the trade;decitex, for example, is particularly suitable for fine yarns(whether spun or
19、filament) and tex for medium and coarseyarns.7. Derivation of Data in Table 27.1 Tables 1 and 2 are based on the following exactequivalents:7.1.1 1 yd = 0.9144 m.7.1.2 1 lb = 453.592 37 g.7.1.3 1 lb = 7000 grains.7.2 The following conversion factors have been computedwhere y = yards per pound.7.2.1
20、Woolen run (wr) = y/1600.7.2.2 cotton count (cc) = y/840.7.2.3 denier (den) = 4 464 492 y.7.2.4 Worsted count (wc) = y/560.7.2.5 American grain count per 120 yd (gr) = 840 000 y.7.2.6 linen lea (lea) = y/300.7.2.7 metric count (mc) = y/496.055.7.2.8 tex (tex) = 496 055 y.7.2.9 For the woolen system,
21、 use the column and rowheaded linen lea.7.3 The data in Table 2 was derived using the NationalInstitute of Standards and Technology values in the NISTCircular M121, January, 1936. Based on current values, whencalculating yards per pound for a specified denier, the table willunderstate the value by 1
22、2 yd out of 4.5 million yd or 11 m outof 4.1 million m. When calculating yards per pound for aspecified tex value, the table will understate the value by 5 ydout of 0.5 million yd or 4.6 m out of 0.46 million m. Therefore,TABLE 1 Conversion Factors for Converting from One Yarn Numbering System to An
23、otherASystem for Which Yarn Number isNeededSystem for Which Yarn Number is KnownTexBDenierAmericanGrain CountCottonCountWorstedCountWoolen RunMetricCountLinen LeaWoolen CutYd/lbTexB(g/1000 m) tex = .den90.590 541gr590.541cc885.812wc310.034wr1 000mc1 653.52lea496 055yDenier (g/9000 m) den = 9 tex . 5
24、.314 87gr5 314.87cc7 972.31wc2 790.31wr9 000mc14 881.6lea4 464 492yAmerican Grain Count (grains/120 yd) gr =tex0.590 541den5.314 87.1 000cc1 500wc525wr1 693.36mc2 800lea840 000yCotton count (840 yd lengths/lb) cc =590.541tex5 314.87den1 000gr.wc1.5wr0.5250.590 541mclea2.8y840Worsted count (560 yd le
25、ngths/lb) wc =885.812tex7 972.31den1 500gr1.5cc .wr0.350.885 812mclea1.866 67y560Woolen run (1600 yd lengths/lb) wr =310.034tex2 790.31den525gr0.525 cc 0.35 wc . 0.310 034mc0.187 5leay1 600Metric count (1000 m/kg) mc =1 000tex9 000den1 693.36grcc0.590 541wc0.885 812wr0.310 034.lea1.653 52y496.055Lin
26、en lea (300 yd lengths/lb) lea =1 653.52tex14 881.6den2 800gr2.8 cc 1.866 67wc0.187 5wr1.653 52mc.y300Yards per pound (yd/lb) y =496 055tex4 464 492den840 000gr840 cc 560 wc 1600 wr 496.055mc300 lea .AThe conversion factors are based on the following relationships given in Metric Practice SI 10SI10:
27、 1 yard = 0.9144 m, exactly, and 1 lb (avoirdupois) = 0.453 592 37kg, exactly. The conversion factors in Table 1 containing fewer than six significant digits are exact values.BMultiples and submultiples of this basic unit may be used as a convenience to avoid large numbers or decimal fractions. For
28、example, decitex (dtex) or tex 10 is suitablefor fine yarns and fibers; millitex (mtex) or tex 1000 is suitable for fibers; while kilotex (ktex) or tex/1000 is often used for ropes, cords, rovings, tops, and slivers.Examples of Table 1 use:1) The English worsted count equivalent to a cotton count of
29、 10 is 1.5 times 10, or 15 English worsted count.2) The cotton count equivalent to 30 tex is 590.54 divided by 30, or 19.7 cotton count.D2260 03 (2018)2those who need more precise data for denier and tex shouldrecalculate the data needed using the current values in Table 1.8. Keywords8.1 yarn number
30、; yarns per poundTABLE 2 Equivalent Yarn Number Conversion TableNOTE 1In any row with a boldface type number, the other equivalents are computed from the boldface value to the nearest four significant figures.ExactEquivalentyd/lb forRounded Tex-ValueACottonCountIndirect Systems Direct SystemsDeviati
31、onBWorstedCountWoolenRunLinenWoolenCutMetricCountAmericanGrain CountDenierRoundedValueRoundedValuedtex yd/lb cc wc wr lea mc gr den tex dtex %1.111 4 465 000CC C C C0.188 1.00 0.11 1.1 1.01.333 1.2 0.13 1.3 2.51.444CC C C C1.3 0.14 1.4 3.11.667 1.5 0.17 1.7 +2.01.889CC C C C1.7 0.19 1.9 +0.62.000 2
32、232 000CC C C C1.8 0.20 2.0 0.02.222 0.376 2.00 0.22 2.2 1.02.444CC C C C2.2 0.24 2.4 1.82.556 2.3 0.26 2.6 +1.72.778CC C C C2.5 0.27 2.8 +0.83.000CC C C C2.7 0.30 3.0 0.03.333 3.00 0.33 3.3 1.03.556CC C C C3.2 0.36 3.6 +1.24.000 3.6 0.40 4.0 0.04.111CC C C C3.7 0.41 4.1 0.34.444CC C C C4.00 0.44 4.
33、4 1.04.667 4.2 0.47 4.7 +0.75.000CC C C C4.5 0.50 5.0 0.05.555 893 000 0.941 5.00 0.56 5.6 +0.76.111CC C C C0.9406 5.5 0.61 6.1 0.26.667CC C C C6.00 0.67 6.7 0.57.778 7.00 0.78 7.8 +0.37.889CC C C C8.00 0.89 8.9 +0.110.00 496 055 1.693 9.00 1.0 10 011.00 450 959CC C C C1.881 10.00 1.1 11 1.012.22 41
34、3 379CC C C C11 1.2 12 1.813.33 381 581 12 1.3 13 2.515.56 310 034CC C C C14 1.6 16 +2.816.67 291 797 15 1.7 17 +2.020.00 248 028CC C C C3.387 18.00 2.0 20 022.22 225 480CC C C C3.763 20.00 2.2 22 1.025.56 190 790 23 2.6 26 +1.727.78 177 162 25 2.8 28 +0.830.00 165 352 196.8 295.3 103.3 551.1 333.3
35、5.080 27.00 3.0 30 031.11 160 018 28 3.1 31 0.433.33 150 320 177.1 265.7 93.00 496.0 300.0 5.645 30.00 3.3 33 1.035.56 141 730 32 3.5 35 1.638.89 124 014 35 4.0 40 +2.840.00 121 191 147.6 221.4 77.51 413.4 250.0 6.774 36.00 4.0 40 044.44 112 740 132.9 199.3 69.75 372.0 225.0 7.527 40.00 4.4 44 1.045
36、.00 110 200 131.2 196.8 68.89 367.4 222.2 7.620 40.50 4.5 45 047.78 103 345 43 4.8 48 +0.549.21 100 800 120.0 180.0 63.00 336.0 203.2 8.333 44.29 4.9 41 +1.650.00 99 211 118.1 177.2 62.01 330.7 200.0 8.466 45.00 5.0 50 050.04 118 0.150.91 97 266 116 5.1 51 +0.251.35 115 +1.351.80 95 395 114 5.2 52 +
37、0.452.22 47 0.452.72 93 595 112 5.3 53 +0.553.68 110 1.3D2260 03 (2018)3TABLE 2 ContinuedExactEquivalentyd/lb forRounded Tex-ValueACottonCountIndirect Systems Direct SystemsDeviationBWorstedCountWoolenRunLinenWoolenCutMetricCountAmericanGrain CountDenierRoundedValueRoundedValuedtex yd/lb cc wc wr le
38、a mc gr den tex dtex %54.68 90 192 108 5.5 55 +0.650.91 116.0 174.0 60.90 324.8 196.4 8.621 45.82 5.1 5153.69 110.0 165.0 57.75 308.0 186.3 9.091 48.32 5.4 5455.00 107.4 161.1 56.37 300.6 290.9 9.314 49.50 5.5 5555.56 106.3 159.5 55.81 297.7 180.0 9.406 50.00 5.6 56 +0.855.71 88 581 106 5.6 56 +0.55
39、6.24 105 0.456.78 87 027 104 5.7 57 +0.457.78 52 +0.457.89 102 +0.258.00 85 527 5.8 58 059.05 84 077 100.0 150.0 52.50 28.00 169.3 10.00 53.15 5.9 59 0.160.00 98.42 147.6 51.67 275.6 166.7 10.16 54.00 6.0 60 060.26 82 676 98 6.0 60 0.461.10 96.64 145.0 50.74 270.6 163.7 10.35 55.00 6.1 61 061.51 96
40、+0.862.16 80 009 95 6.2 62 0.362.22 56 0.462.82 78 739 94 6.3 63 +0.364.18 77 509 92 6.4 64 0.365.00 90.85 136.3 47.70 254.4 153.8 11.01 58.50 6.5 65 065.61 75 160 90.00 135.0 47.25 252.0 152.4 11.11 59.06 6.6 66 +0.667 88.59 132.9 46.51 248.0 150.0 11.29 60.00 6.7 66.6667.10 74 038 88 6.7 67 0.169.
41、47 71 892 86 6.9 69 +0.769.47 85 +0.870.00 70 865 84.36 126.5 44.29 236.2 142.29 11.85 63.00 7.0 70 070.30 84 0.472.01 69 867 82 7.1 71 1.472.22 68 897 81.98 122.7 42.94 229.0 138.5 12.23 65.00 7.2 72 0.373.82 67 034 80.00 120.0 42.00 224.0 135.5 12.50 66.44 7.4 74 +0.374.75 66 141 79 7.5 75 +0.375.
42、00 78.74 118.1 41.34 220.5 133.3 12.70 67.50 7.5 75 475.07 78.67 118.0 41.30 220.3 133.2 12.71 67.57 7.5 75 475.16 78.57 117.9 41.25 220.0 133.0 12.73 67.65 7.5 75 475.62 78.10 117.1 41.00 218.7 132.2 12.80 68.06 7.6 76 475.71 65 270 78.00 117.0 40.95 218.4 132.1 12.82 68.14 7.6 76 +0.476.34 77.36 1
43、16.0 40.61 216.6 131.0 12.93 68.71 7.6 76 276.55 77.14 115.7 40.50 216.0 130.6 12.96 68.90 7.7 77 276.69 64 423 77.00 115.5 40.42 215.6 130.4 12.99 69.03 7.7 77 +0.477.78 75.93 113.9 39.86 212.6 128.6 13.17 70.00 7.8 78 +0.377.70 76.00 114.0 39.90 212.8 128.7 13.16 69.94 7.8 78 +0.478.00 63 597 75.7
44、2 113.6 39.75 212.0 128.2 13.21 70.20 7.8 78 078.74 62 792 75.00 112.5 39.38 210.0 127.0 13.33 70.87 7.9 79 +0.379.09 74.67 126.4 39.20 209.1 126.4 13.39 71.19 7.9 7979.50 74.29 125.8 39.00 208.0 125.8 13.46 71.53 8.0 8079.80 62 007 74.00 111.0 38.85 207.2 125.3 13.51 71.83 8.0 80 +0.380.00 73.82 12
45、5.0 38.75 206.7 125.0 13.56 72.00 8.0 8080.53 73.33 124.2 38.50 205.3 124.2 13.64 72.48 8.0 8180.90 61 241 73.00 109.5 38.32 204.4 123.6 13.70 72.81 8.1 81 +0.181.05 72.86 123.4 38.25 204.0 123.4 13.73 72.95 8.1 8181.59 72.38 122.6 38.00 202.7 122.6 13.82 73.43 8.2 8282.02 60 495 72.00 108.0 201.6 1
46、21.9 13.89 73.82 8.2 82 082.68 71.45 121.0 32.51 200.1 121.0 14.00 74.39 8.3 8382.68 71.43 121.0 37.50 200.0 121.0 14.00 74.41 8.3 8383.17 71.00 106.5 37.28 198.8 120.2 14.08 74.96 8.3 83 +1.083.33 59 054 70.87 106.3 37.21 198.4 120.0 14.11 75.00 8.3 83 +0.883.57 70.67 119.7 37.10 197.9 119.7 14.15
47、75.22 8.4 8483.79 70.48 119.3 37.00 197.3 119.3 14.19 75.42 8.4 8484.36 70.00 105.0 36.75 196.0 118.5 14.29 75.93 8.4 84 0.4D2260 03 (2018)4TABLE 2 ContinuedExactEquivalentyd/lb forRounded Tex-ValueACottonCountIndirect Systems Direct SystemsDeviationBWorstedCountWoolenRunLinenWoolenCutMetricCountAme
48、ricanGrain CountDenierRoundedValueRoundedValuedtex yd/lb cc wc wr lea mc gr den tex dtex %85.00 69.49 117.6 36.47 194.5 117.6 14.38 76.50 8.5 8585.17 69.33 117.4 36.40 194.1 117.4 14.42 76.66 8.5 8585.58 58 359 69.00 103.5 36.22 193.2 116.8 14.49 77.03 8.5 86 0.786.12 68.57 116.1 36.00 192.0 116.1 1
49、4.58 77.51 8.6 8686.84 57 018 68.00 102.0 35.70 190.4 115.1 14.71 78.17 8.7 87 +0.287.95 67.14 100.7 35.25 188.0 113.7 14.89 79.16 8.8 8888.14 56 370 67.00 100.5 35.14 187.5 113.5 14.93 79.16 8.8 88 0.188.58 66.67 100.0 35.00 186.7 112.9 15.00 79.43 8.9 8988.88 66.44 99.66 34.88 186.0 112.5 15.05 80.00 8.9 89 +1.289.48 66.00 99.00 34.68 184.8 111.8 15.15 80.53 8.9 89 +0.688.90 66.43 99.64 34.88 186.0 112.5 15.05 80.02 8.9 8990.00 55 117 65.62 98.42 34.45 183.7 111.1 15.24 81.00 9.0 90 089.86 65.72 98.57 34.5
