1.1These tables include (1) a series of conversion factors required to convert the number of a yarn measured in a specific system to the equivalent number measured in various other systems (see Table 1), and (2) specific equivalent numbers for yarns measured in various systems (see Table 2).
TABLE 1 Conversion Factors for Converting from One Yarn Numbering System to AnotherA | System for Which Yarn Number is
Needed | System for Which Yarn Number is Known |
| TexB | Denier | American
Grain Count | Cotton
Count | Worsted
Count | Woolen Run | Metric
Count | Linen Lea
Woolen Cut | Yd/lb |
| TexB (g/1000 m) | tex = | ... | 
| 0.590541
× gr | 
| 
| 
| 
| 
| 
|
| Denier (g/9000 m) | den = | 9 × tex | ... | 5.31487
× gr | 
| 
| 
| 
| 
| 
|
| American Grain Count (grains/120 yd) | gr = | 
| 
| ... | 
| 
| 
| 
| 
| 
|
| Cotton count (840 yd lengths/lb) | cc = | 
| 
| 
| ... | 
| 
| 0.590541
× mc | 
| 
|
| Worsted count (560 yd lengths/lb) | wc = | 
| 
| 
| 1.5 × cc | ... | 
| 0.885812
×mc | 
| 
|
| Woolen run (1600 yd lengths/lb) | wr = | 
| 
| 
| 0.525 × cc | 0.35 × wc | ... | 0.310034
× mc | 0.1875
×lea | 
|
| Metric count (1000 m/kg) | mc = | 
| 
| 
| 
| 
| 
| ... | 
| 
|
| Linen lea (300 yd lengths/lb) | lea = | 
| 
| 
| 2.8 × cc | 1.86667
× wc | 0.1875
× wr | 1.65352
× mc | ... | 
|
| Yards per pound (yd/lb) | y = | 
| 
| 
| 840 × cc | 560 × wc | 1600 × wr | 496.055
× mc | 300 × lea | ... |
1.2The content is basically consistent with recommendations of the International Organization for Standardization (ISO) Standard 2947.
1.3The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.