ASTM-D4724 › Standard Test Method for Entanglements in Untwisted Filament Yarns by Needle Insertion
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Scope
1.1 These test methods cover three procedures for the determination of the degree of filament yarn entanglement using needle insertion. The test methods appear in the following order:
Sections Method 1-Degree of Filament Entangle- ment by Average Millimetre Pull 9 to 17 Method 2-Degree of Filament Entangle- ment in a Length of Yarn 17 to 25 Method 3-Degree of Filament Entangle- ment by Manual Method 25 to 321.2 The values stated in SI units are to be regarded as the standard.
1.3 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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.
Keywords
entanglement; yarn; ICS Number Code 59.080.20 (Yarns)
To find similar documents by ASTM Volume:
07.02 (Textiles (II): D4393 - latest)
To find similar documents by classification:
59.080.20 (Yarns Including plied yarns, textured yarns, threads)
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Document Number
ASTM-D4724_D4724M-21
Revision Level
2021 EDITION
Status
Current
Modification Type
New
Publication Date
Jan. 11, 2021
Document Type
Test Method
Page Count
6 pages
Committee Number
D13.58