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These test methods cover the identification of the following textile fibers used commercially in the United States:
Formerly under the jurisdiction of Committee D13 on Textiles, these test methods were withdrawn in January 2021 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.
1.1 These test methods cover the identification of the following textile fibers used commercially in the United States:
|Cuprammonium rayon||Rayon (viscose)|
1.2 Man-made fibers are listed in 1.1 under the generic names approved by the Federal Trade Commission and listed in Terminology D123, Annex A1 (except for fluorocarbon and polycarbonate). Many of the generic classes of man-made fibers are produced by several manufacturers and sold under various trademark names as follows (Note 1):
|Acetate||Acele®, Aviscon®, Celanese®, Chromspun®, Estron®|
|Acrylic||Acrilan®, Courtelle®, Creslan®, Dralon®, Orlon®, Zefran®|
|Aramid||Kevlar®, Nomex®, Technora®, TeijinConex®, Twaron®|
|Glass||Fiberglas®, Garan®, Modiglass®, PPG®, Ultrastrand®|
|Modacrylic||Dynel®, Kanecaron®, Monsanto SEF®, Verel®|
|(Nylon) 6||Caprolan®,Enka®, Perlon®, Zefran®, Enkalon®|
|(Nylon) 6, 6||Antron®, Blue C®, Cantrece®, Celanese Phillips®, Enka®Nylon|
|(Nylon) (other)||Rilsan®(nylon 11), Qiana®, StanylEnka®,(Nylon 4,6)|
|Olefin||Durel®, Herculon®, Marvess®, Polycrest®|
|Polyester||Avlin®, Beaunit®, Blue C®, Dacron®, Encron®, Fortrel®, Kodel®, Quintess®, Spectran®, Trevira®, Vyoron®, Zephran®, Diolen®, Vectran®|
|Rayon||Avril®, Avisco®, Dynacor®, Enka®, Fiber 700®, Fibro®, Nupron®, Rayflex®, Suprenka®, Tyrex®, Tyron®, Cordenka®|
|Spandex||Glospun®, Lycra®, Numa®, Unel®|
|Vinyon||Avisco®, Clevyl®, Rhovyl®, Thermovyl®, Volpex®|
Note 1—The list of trademarks in 1.2 contains only examples and does not include all brands produced in the United States or abroad and imported for sale in the United States. The list does not include examples of fibers from two (or more) generic classes of polymers spun into a single filament. Additional information on fiber types and trademarks is given in Refs (1, 2, and 3).
1.3 Most manufacturers offer a variety of fiber types of a specific generic class. Differences in tenacity, linear density, bulkiness, or the presence of inert delustrants normally do not interfere with analytic tests, but chemical modifications (for such purposes as increased dyeability with certain dyestuffs) may affect the infrared spectra and some of the physical properties, particularly the melting point. Many generic classes of fibers are sold with a variety of cross-section shapes designed for specific purposes. These differences will be evident upon microscopical examination of the fiber and may interfere with the measurements of refractive indices and birefringence.
1.4 Microscopical examination is indispensable for positive identification of the several types of cellulosic and animal fibers, because the infrared spectra and solubilities will not distinguish between species. Procedures for microscopic identification are published in AATCC Method 20 and in References (4-12).
1.5 Analyses by infrared spectroscopy and solubility relationships are the preferred methods for identifying man-made fibers. The analysis scheme based on solubility is very reliable. The infrared technique is a useful adjunct to the solubility test method. The other methods, especially microscopical examination are generally not suitable for positive identification of most man-made fibers and are useful primarily to support solubility and infrared spectra identifications.
1.6 These test methods include the following sections:
|Summary of Test Methods||4|
|Significance and Use||5|
|Sampling, Selection, Preparation and Number of Specimens||6|
|Purity of Reagents||8|
|Fiber Identification by|
|Physical Properties to Confirm Identification|
|Birefringence by Difference of||34 and 35|
1.7 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. See Note 3.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D123 Terminology Relating to Textiles
D629 Test Methods for Quantitative Analysis of Textiles
D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
D941 Test Method for Density and Relative Density (Specific Gravity) of Liquids by Lipkin Bicapillary Pycnometer
D1217 Test Method for Density and Relative Density (Specific Gravity) of Liquids by Bingham Pycnometer
D1776 Practice for Conditioning and Testing Textiles
E131 Terminology Relating to Molecular Spectroscopy
E175 Terminology of Microscopy
AATCC MethodTest Method 20A Fiber Analysis: Quantitative
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM D276-12, Standard Test Methods for Identification of Fibers in Textiles (Withdrawn 2021), ASTM International, West Conshohocken, PA, 2012, www.astm.orgBack to Top