ASTM D2494-13
Standard Test Method for Commercial Mass of a Shipment of Yarn or Manufactured Staple Fiber or Tow

Standard No.

ASTM D2494-13

Release Date

2013

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D2494-13(2020)

Latest

ASTM D2494-13(2020)

Scope

5.1 This test method is considered satisfactory as a referee method for acceptance testing of commercial shipments of yarn or manufactured staple fibers.

5.1.1 If there are differences of practical significance between reported test results for two laboratories (or more), comparative tests should be performed to determine if there is a statistical bias between them, using competent statistical assistance. As a minimum, use the samples for such a comparative test that are as homogeneous as possible, drawn from the same lot of material as the samples that resulted in disparate results during initial testing and randomly assigned in equal numbers to each laboratory. The test results from the laboratories involved should be compared using a statistical test for unpaired data, a probability level chosen prior to the testing series. If a bias is found, either its casuse must be found and corrected, or future test results for that material must be adjusted in consideration of the known bias.

5.2 Option I is in common use in other countries, particularly in Europe.⁴

5.3 Option II is used to calculate the commercial mass of as-produced manufactured filament yarns (except some producer-textured yarns), manufactured staple fibers, and tows. This option is intended to reflect the mass of fiber remaining after fiber lubricants and processing aids are removed.

5.4 Option III is used to calculate the commercial mass of spun yarns, textured yarns, tops, and slivers. When materials are sold on a CMRU basis, the purchaser pays for the fiber lubricant or other removable processing aids.

5.5 Option IV is in common use with impregnated aramids.

5.6 When it can be shown that solvent extraction or another method of testing gives the same results, or results that have a constant ratio to those obtained by the scour procedure, that method may be used for routine testing of known production but should not be substituted for a scour on new or unknown material. For the determination of extractable matter, refer to Test Method D2257.

5.6.1 When the finish is not removable by a water scour, a solvent extraction may be substituted on agreement between the purchaser and the supplier.

5.7 Under certain circumstances, samples taken from yarns and manufactured staple fibers and tows can change moisture content rapidly. For this reason, very careful planning and handling of samples are required to prevent major biases in commercial mass results.

1.1 This test method provides a measurement of the commercial mass of a shipment of yarn or manufactured staple fiber or tow. This test method applies to (1) yarn of all fiber types except silk, glass, asbestos, and bast; (2) tops and slivers of all fiber types except wool, silk, glass, asbestos, and bast; and (3) manufactured fibers or tow, e......

ASTM D2494-13 Referenced Document

• ASTM D123 Standard Terminology Relating to Textiles
• ASTM D1909 Standard Table of Commercial Moisture Regains for Textile Fibers
• ASTM D2257 Standard Test Method for Extractable Matter in Textiles
• ASTM D2258 Standard Practice for Sampling Yarn for Testing
• ASTM D2720 Standard Practice for Calculation of Commercial Weight and Yield of Scoured Wool, Top, and Noil for Various Commercial Compositions
• ASTM D3333 Standard Practice for Sampling Manufactured Staple Fibers, Sliver, or Tow for Testing
• ASTM D3888 Standard Terminology Relating to Open-End Spinning
• ASTM D3990 Standard Terminology Relating to Fabric Defects
• ASTM D4849 Standard Terminology Related to Yarns and Fibers
• ASTM D629 Standard Test Methods for Quantitative Analysis of Textiles

ASTM D2494-13 history

• 2020 ASTM D2494-13(2020) Standard Test Method for Commercial Mass of a Shipment of Yarn or Manufactured Staple Fiber or Tow
• 2013 ASTM D2494-13 Standard Test Method for Commercial Mass of a Shipment of Yarn or Manufactured Staple Fiber or Tow
• 2010 ASTM D2494-02(2010)e1 Standard Test Method for Commercial Mass of a Shipment of Yarn or Manufactured Staple Fiber or Tow
• 2002 ASTM D2494-02 Standard Test Method for Commercial Mass of a Shipment of Yarn or Manufactured Staple Fiber or Tow
• 1996 ASTM D2494-96 Standard Test Method for Commercial Mass of a Shipment of Yarn or Man-Made Staple Fiber or Tow