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Standard Practice for Use of the Tex System to Designate Linear Density of Fibers, Yarn Intermediates, and Yarns
Automatische name übersetzung:
Standard Praxis zur Nutzung der Tex-System, um Titer von Fasern, Garne Intermediates und Garne Bestimmen
NORM herausgegeben am 1.7.2013
Bezeichnung normen: ASTM D861-07(2013)
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.7.2013
SKU: NS-39526
Zahl der Seiten: 2
Gewicht ca.: 6 g (0.01 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
linear density, tex, tex system, textile fibers, textile strand, yarn, yarn intermediates, yarn number, ICS Number Code 59.080.20 (Yarns)
Significance and Use | ||||||||
4.1 The tex system has been approved for general use by the International Organization for Standardization, Technical Committee 38 on Textiles (ISO/TC 38), which has also recommended a list of rounded tex numbers for use with fibers and all types of yarns. Conversion tables showing the rounded tex numbers corresponding to various numbers in different traditional systems are given in Tables D2260 and ISO 2947. 4.2 The tex system for designation of the linear density of fibers and yarns is a direct system based on mass per unit length, M/L, and employs metric units of length and mass. The tex unit, grams per kilometre (1000 m) has been approved by ISO/TC 38 for use with all fibers and all types of yarn. The committee has also approved the use of kilotex and decatex numbers for coarse structures and decitex and millitex numbers for fibers. 4.3 The tex system relates to the property commonly associated with coarseness, or inverse fineness of a yarn because the tex numbers increase with an increase in the size or mass per unit length of the yarn. The tex system is intended for use by all branches of the textile industry, in all countries, for yarns made from all types of fibers or mixtures of fibers. |
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1. Scope | ||||||||
1.1 This practice covers the use of the tex system to designate the linear density (number, or count) of fibers and of yarns made from any type of fiber or combination of fibers. It is also applicable to other textile materials, including yarn intermediates (slivers, rovings, tops, etc.), single or plied yarns, cords, and threads. 1.2 Conversion factors for various
indirect and direct yarn numbers to exact tex equivalents can be
found in Standard Tables D2260.
1.3 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. |
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2. Referenced Documents | ||||||||
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Historisch
1.3.2012
Historisch
1.5.2011
Historisch
1.7.2013
Historisch
1.7.2013
Historisch
1.7.2013
Historisch
1.2.2012
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