1、Designation: D 2260 03Standard Tables ofConversion Factors and Equivalent Yarn Numbers Measuredin Various Numbering Systems1This standard is issued under the fixed designation D 2260; 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 These tables include (1) a series of conversion factorsrequired to convert the number of a yarn measured
3、 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 Standardization(ISO
4、) Standard 2947.2. Referenced Documents2.1 ASTM Standards:D 123 Terminology Relating to Textiles2D 861 Practice for Use of the Tex System to DesignateLinear Density of Fibers, Yarn Intermediates, and Yarns2D 3888 Terminology Related to Open-End Spinning3D 3990 Terminology Relating to Fabric Defects3
5、D 4849 Terminology Relating to Fibers and Yarns3SI 10 Standard for Use of the International System of Units(SI): The Modern Metric System32.2 ISO Standard:ISO 2947, TextilesIntegrated Conversion Table for Replac-ing Traditional Yarn Numbers by Rounded Numbers in theTex System42.3 NIST Standard:NBSM1
6、21January, 193653. Terminology3.1 Refer to Terminology D 4849 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 systems; grain, in yarnspinning; grain, in measuring mass; ind
7、irect 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 D 123 for definitions of otherterms used in this standard.4. Conversion Factors for Equivalent Yarn Num
8、bers4.1 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 Table 2.5.2 With a few exceptions, fractional traditional indi
9、rectcounts have been omitted from Table 2; the rounded tex systemvalues for most fractional traditional indirect counts can beobtained by interpolation.6. Implementation of the Tex Yarn Numbering System6.1 In Table 2, to encourage the implementation of the texsystem in the United States, rounded tex
10、 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 decitex (dtex) equivalents have been includedbecause they can be used throughout most of the cou
11、nt 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 filament) and tex for medium and coarseyarns.1These tables are under the jurisdiction of ASTM
12、 Committee D13 on Textilesand are the direct responsibility of Subcommittee D13.58 on Yarn and Fiber TestMethods.Current edition approved Feb. 10, 2003. Published April 2003. Originallyapproved in 1964. Last previous edition approved in 2002 as D2260 02.2Annual Book of ASTM Standards, Vol 07.01.3Exc
13、erpts from SI 10, Standard for Use of the International System of Units (SI):The Modern Metric Syste, can be found in the Annual Book of ASTM Standards,Vols 07.01 and 07.02. The standard is available as a separate publication and appearsin its entirety in Vol 14.02.4American National Standards Insti
14、tute, 11 West 42nd Street, 13th Floor, NewYork, NY 10036.5Available from National Institute of Standards and Technology, Gaithersburg,MD 20899.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.7. Derivation of Data in Table 27.1 Tables
15、 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 Woolen run (wr) = y/1600.7.2.2 cotton count (cc) = y/840.7.2.3 denier (den) = 4 464 492
16、/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, use the column and rowheaded linen lea.7.3 The data in Table 2 was derived using the N
17、ationalInstitute 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 12 yd out of 4.5 million yd or 11 m outof 4.1 million m. When calculating yards per poun
18、d 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,those 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; yarns per pound
19、TABLE 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 SystemsDeviationBWorstedCountWo
20、olenRunLinenWoolenCutMetricCountAmericanGrain 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 2 232 000CC C C C1.
21、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 +1.7TABLE 1 Conversion Factors for Converting from One Yarn Numbering System to AnotherASystem for Which Yarn Number isNeededSystem for Which Yarn Number is KnownTexBDenierAmericanGrain CountCottonCountWorsted
22、CountWoolen RunMetricCountLinen LeaWoolen CutYd/lbTexB(g/1000 m) tex = . den90.590 5413 gr590.541cc885.812wc310.034wr1 000mc1 653.52lea496 055yDenier (g/9000 m) den = 9 3 tex . 5.314 873 gr5 314.87cc7 972.31wc2 790.31wr9 000mc14 881.6lea4 464 492yAmerican Grain Count (grains/120 yd) gr = tex0.590 54
23、1den5.314 87. 1 000cc1 500wc525wr1 693.36mc2 800lea840 000yCotton count (840 yd lengths/lb) cc = 590.541tex5 314.87den1 000gr. wc1.5wr0.5250.590 5413 mclea2.8y840Worsted count (560 yd lengths/lb) wc = 885.812tex7 972.31den1 500gr1.5 3 cc . wr0.350.885 8123mclea1.866 67y560Woolen run (1600 yd lengths
24、/lb) wr = 310.034tex2 790.31den525gr0.525 3 cc 0.35 3 wc . 0.310 0343 mc0.187 53leay1 600Metric count (1000 m/kg) mc = 1 000tex9 000den1 693.36grcc0.590 541wc0.885 812wr0.310 034. lea1.653 52y496.055Linen lea (300 yd lengths/lb) lea = 1 653.52tex14 881.6den2 800gr2.8 3 cc 1.866 673 wc0.187 53 wr1.65
25、3 523 mc. y300Yards per pound (yd/lb) y = 496 055tex4 464 492den840 000gr840 3 cc 560 3 wc 1600 3 wr 496.0553 mc300 3 lea .AThe conversion factors are based on the following relationships given in Metric Practice SI 10: 1 yard = 0.9144 m, exactly, and 1 lb (avoirdupois) = 0.453 592 37 kg,exactly. Th
26、e 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 example, decitex (dtex) or tex 3 10 issuitable for fine yarns and fibers; millite
27、x (mtex) or tex 3 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 10 is 1.5 times 10, or 15 English worsted count.2) The cotton count equivale
28、nt to 30 tex is 590.54 divided by 30, or 19.7 cotton count.D2260032TABLE 2 ContinuedExactEquivalentyd/lb forRounded Tex-ValueACottonCountIndirect Systems Direct SystemsDeviationBWorstedCountWoolenRunLinenWoolenCutMetricCountAmericanGrain CountDenierRoundedValueRoundedValuedtex yd/lb cc wc wr lea mc
29、gr den tex dtex %2.778CCC C C2.5 0.27 2.8 +0.83.000CCC C C2.7 0.30 3.0 0.03.333 3.00 0.33 3.3 1.03.556CCC C C3.2 0.36 3.6 +1.24.000 3.6 0.40 4.0 0.04.111CCC C C3.7 0.41 4.1 0.34.444CCC C C4.00 0.44 4.4 1.04.667 4.2 0.47 4.7 +0.75.000CCC C C4.5 0.50 5.0 0.05.555 893 000 0.941 5.00 0.56 5.6 +0.76.111C
30、CC C C0.9406 5.5 0.61 6.1 0.26.667CCC C C6.00 0.67 6.7 0.57.778 7.00 0.78 7.8 +0.37.889CCC C C8.00 0.89 8.9 +0.110.00 496 055 1.693 9.00 1.0 10 011.00 450 959CCC C C1.881 10.00 1.1 11 1.012.22 413 379CCC C C11 1.2 12 1.813.33 381 581 12 1.3 13 2.515.56 310 034CCC C C14 1.6 16 +2.816.67 291 797 15 1.
31、7 17 +2.020.00 248 028CCC C C3.387 18.00 2.0 20 022.22 225 480CCC 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 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
32、 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 1.045.00 110 200 131.2 196.8 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
33、 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 +0.452.22 47 0.452.72 93 595 112 5.3 53 +0.553.68 110 1.354.68 90 192 108 5.5 55 +0.650.91 116.0 174.0 60.90 3
34、24.8 196.4 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 +0.556.24 105 0.456.78 87 027 104 5.7 57 +0.457.78 52 +0.457.89 102 +0.258.00 85
35、 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 0D2260033TABLE 2 ContinuedExactEquivalentyd/lb forRounded Tex-ValueACottonCountIndire
36、ct Systems Direct SystemsDeviationBWorstedCountWoolenRunLinenWoolenCutMetricCountAmericanGrain CountDenierRoundedValueRoundedValuedtex yd/lb cc wc wr lea mc gr den tex dtex %61.51 96 +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 47.7
37、0 254.4 153.8 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 0.169.47 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 0.472.0
38、1 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 +0.375.00 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
39、.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 77.36 116.0 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
40、 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 75.72 113.6 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
41、 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 73.82 125.0 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.
42、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 72.00 108.0 201.6 121.9 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
43、.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 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
44、 84 0.485.00 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 14.58 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 +0.2
45、87.95 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.
46、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 34.50 184.0 111.3 15.22 80.88 9.0 90D2260034TABLE 2 ContinuedExactEquivalentyd/lb forRounded Tex-ValueACottonCountIndirect Systems Direct SystemsDeviationBWorstedCountWoolenR
47、unLinenWoolenCutMetricCountAmericanGrain CountDenierRoundedValueRoundedValuedtex yd/lb cc wc wr lea mc gr den tex dtex %90.39 65.33 98.00 34.30 182.9 110.6 15.31 81.36 9.0 9090.85 54 512 65.00 97.50 34.13 182.0 110.1 15.38 81.77 9.1 91 +0.291.29 64.76 92.14 34.00 181.3 109.7 15.44 82.07 9.1 9191.86
48、64.29 96.43 33.75 180.0 108.9 15.56 82.68 9.2 9292.27 53 919 64.00 96.00 33.6 179.2 108.4 15.63 83.05 9.2 92 0.393.74 52 772 63.00 94.50 33.08 176.4 106.7 15.87 84.37 9.4 94 +0.393.95 62.86 94.28 33.00 176.0 106.4 15.91 84.56 9.4 9494.95 62.27 94.00 32.90 175.5 106.1 15.96 84.82 9.5 9595.00 62.16 93
49、.24 32.63 174.0 105.3 16.08 85.50 9.5 9595.23 52 216 62.01 93.02 32.56 173.6 105.0 16.31 85.71 9.5 95 0.395.25 62.00 93.00 32.55 173.6 105.2 16.73 85.73 9.8 9596.13 61.43 92.14 32.25 172.0 104.0 16.28 86.53 9.6 9696.28 61.33 92.00 32.20 171.7 103.9 16.30 86.66 9.6 9696.81 51 140 61.00 91.50 32.02 170.8 103.3 16.34 87.14 9.7 97 +0.296.88 60.95 91.43 32.00 170.7 103.2 16.41 87.20 9.7 9798.41 60.00 90.00 31.50 168.0 101.6 16.67 88.57 9.8 98 +1.6100.0 49 606 59.05 88.57 31.00 165.3 100.0 16.94 90.00 10.0 100 0100.1 59.00 88.50 30.98 165.2 99.94 16.
