ASTM D6720-01
Historical Standard: ASTM D6720-01 Standard Test Method for Evaluation of Recoverable Stretch of Stretch Yarns (Skein Method)
SUPERSEDED (see Active link, below)
ASTM D6720
1. Scope
1.1 This test method covers the determination of the recoverable stretch of commercial textured yarns, covered elastomeric yarns and other stretch yarns using skeins. This test method is particularly valuable for yarns that develop additional crimp upon exposure to hot, wet conditions. The recoverable stretch is a relative measure of the recovery power the yarn can be expected to provide in a finished fabric.
1.2 This test method is applicable to continuous filament yarns and is suitable for yarns that develop additional stretch potential upon exposure to heat.
1.3 This method is applicable to yarns 500 denier or finer.
1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are provided for information only.
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 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.
ASTM Standards
D123 Terminology Relating to Textiles
D1776 Practice for Conditioning and Testing Textiles
D4849 Terminology Related to Yarns and Fibers
Keywords
crimp; elastomeric yarns; recoverable stretch; stretch yarns; textured yarns;
ICS Code
ICS Number Code 59.080.20 (Yarns)
DOI: 10.1520/D6720-01
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