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Significance and Use
These tolerances may be used as a guide in purchaser/supplier disputes, or to assist in assigning nominal values for linear density and twist. The tolerances listed for each property represent the maximum variations deemed acceptable in the trade.
1.1 These tolerances cover first-quality, manufactured, organic-base filament single yarns (namely, bright, semi-dull, dull, solution-dyed, bleached, unbleached, etc.) regardless of the package type. These tolerances cover permissible variations in linear density, tenacity, elongation, twist, and commercial weight.
1.1.1 These tolerances do not apply to rubber yarns, spandex yarns, metal-covered yarns, nor to bulk yarns since test methods for these types of yarn are not available. These tolerances do not apply to industrial filament yarns.
Note 1—Tolerances for inorganic glass yarns are given in Specifications and Methods D578.
1.2 This standard covers only tolerances. It does not cover specifications or quality levels, for yarns to be used for any purpose. Specifications for specific properties are subject to agreement by the purchaser and the supplier.
Note 2—While the tolerances specified may be applied to yarn taken from fabric, the properties of such yarns will likely differ from the original level.
1.3 This 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D123 Terminology Relating to Textiles
D578 Specification for Glass Fiber Strands
D1423 Test Method for Twist in Yarns by Direct-Counting
D1907 Test Method for Linear Density of Yarn (Yarn Number) by the Skein Method
D2256 Test Method for Tensile Properties of Yarns by the Single-Strand Method
D2258 Practice for Sampling Yarn for Testing
D2494 Test Method for Commercial Mass of a Shipment of Yarn or Manufactured Staple Fiber or Tow
D4849 Terminology Related to Yarns and Fibers
ICS Number Code 59.060.20 (Man-made fibres)
UNSPSC Code 11151700(Yarns)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM D2497-07(2012), Standard Tolerances for Manufactured Organic-Base Filament Single Yarns , ASTM International, West Conshohocken, PA, 2012, www.astm.orgBack to Top