ASTM-D2258/D2258M 2022

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D2258/D2258M-16(2022) Standard Practice for Sampling Yarn for Testing

Published By	Publication Date	Number of Pages
ASTM	2022

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Categories: 59.080.20 - Yarns, ASTM

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Description

ASTM D2258/D2258M-16-Reapproved2022

Active Standard: Standard Practice for Sampling Yarn for Testing

ASTM D2258/D2258M

Scope

1.1 This practice describes a procedure for the division of shipments of yarn into test lots and the sampling of such lots for testing.

1.1.1 This practice can be used for lot sample testing of yarns for both pre-fabric production and post-fabric production.

1.2 This practice is applicable to single, plied, or cabled yarns, and cords, made of any fiber or mixture of fibers, and supported on any form of package, including beams.

1.3 This practice also describes procedures for the sampling of yarn(s) removed from woven or knitted fabrics; however, when thus sampled, the yarns are usually not representative of entire shipments, as referred to in 1.1. Consequently, the resultant sampling can only be used to determine the characteristics of the yarn and is usually not used for acceptance testing. Moreover, it should be recognized that the characteristics of yarns from fabrics may be different than the characteristics of the same yarn(s), prior to being entered into the fabric manufacturing process.

1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.

1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

sampling; yarn ;

ICS Code

ICS Number Code 59.080.20 (Yarns)

DOI: 10.1520/D2258_D2258M-16R22

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