Standard Test Method for Evenness of Textile Strands Using Capacitance Testing Equipment

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PDF

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English

Published date

01-07-2014

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 07.01, 2015 Specifies the indirect measurement of evenness (mass variation) of non-conductive textile strands, including top, comber lap, sliver, roving, and yarn produced from staple fibers and continuous filament yarns, by means of capacitance testing equipment.

1.1This test method covers the indirect measurement of evenness (mass variation) of non-conductive textile strands, including top, comber lap, sliver, roving, and yarn produced from staple fibers and continuous filament yarns, by means of capacitance testing equipment.

1.2 Strands made from fiber blends can be tested using this test method only if the different fibers are uniformly distributed throughout the strand.

1.3The test method provides numeric values for the measurement and evaluation of short-, mid-, and long-term mass variations of the tested strand in terms of frequently occurring faults classified as thin places, thick places, and neps and graphical representations of evenness values in the form of diagram charts, spectrograms, length variation curves, and histograms.

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

1.5This 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.

Committee	D 13
DevelopmentNote	Supersedes ASTM D 1425. (09/2009)
DocumentType	Redline
Pages	8
PublisherName	American Society for Testing and Materials
Status	Current

MIL-DTL-32398 Base Document:2013

LAMINATE: CROSS-PLIED ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE (UHMWPE) UNIDIRECTIONALLY REINFORCED PLASTIC ARMOR

ASTM E 177 : 2014 : REDLINE	Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ASTM D 2258 : 1999	Standard Practice for Sampling Yarn for Testing

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ASTM D 1425/D1425M : 2014 : REDLINE

Standard Test Method for Evenness of Textile Strands Using Capacitance Testing Equipment

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