ASTM D276 PDF

Methods D – 62 T, Identification of Fibers in Textiles were discontinued in 1 These test methods are under the jurisdiction of ASTM Committee D13 on. ASTM Da() – Designation: D – 00a (Reapproved ) Standard Test Methods for Id. ASTM D – Free download as PDF File .pdf), Text File .txt) or read online for free. Identification of textile fibres.

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Standard Test Methods for Identification of Fibers in Textiles

The other methods, especially microscopical examination are generally not suitable for positive identification of most man-made fibers and are useful primarily asrm support solubility and infrared spectra identifications.

This standard is also available to be included in Standards Subscriptions. The immersed weight is plotted as a function of time, and the apparent density obtained by extrapolating to zero time.

The list does not include examples of fibers from two or more generic classes of polymers spun into a single filament. In practice, bers are generally sufficiently opaque that dd276 is not a serious problem, but it should be guarded against, especially when using m-cresol, which has a refractive index 1. The bers should be watched during the test to determine whether there might be a mixture of ber types, some of which are soluble and some insoluble.

An interlaboratory study has been organized. Many of the generic classes of man-made fibers are produced by several manufacturers and sold under various trademark names as follows Note 1: Apparatus, Reagents, and Materials Ashm material to reach its melting point results in permanent fiber change.

ASTM D – 00a Standard Test Methods for Identification of Fibers in Textiles

It is possible to make an identication using a sample of less than 10 mg of each type of ber present. Place the specimen in the sample beam of the instrument and record the spectrum while scanning from 2. Many generic classes of bers are 2d76 with a variety of cross-section shapes designed for specic purposes. D The ber is opaque.

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ASTM D276 – 12

Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. A-TellT 4 GT asm type: These differences will be evident upon microscopical examination of the fiber and may interfere with the measurements of refractive indices and birefringence.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of zstm standard. The list does not include examples of fibers from two or more generic classes of polymers spun into a single filament. Identication of the ber generic class is made by analysis of the ber spectrum using a decision chart Fig.

Originally approved in Summary of Test Method 4. Numerically, birefringence is the difference between the maximum and minimum refractive indices. Accordingly, if the ber is dissolved at any point in the analysis, perform subsequent tests on a fresh specimen. The listed values are for specic bers which warrant d26 highly precise values given. Many generic classes of fibers are sold with a variety of cross-section shapes designed for specific purposes.

ASTM D – Standard Test Methods for Identification of Fibers in Textiles

This standard is not included in any packages. Mix with about mg of powdered KBr and grind in the ball mill for 1 to 2 min. D — 00a A No. The density gradient column may also be used for separation. Other techniques such as, microscopical examination or comparison of physical properties are used to confirm the identification or to distinguish between those fiber classes anidex, aramid, asbestos, fluorocarbon, glass, and novoloid which are not dissolved by any of the reagents used in this scheme.

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These test methods are a generally reliable means of identifying the generic types of fibers present in a sample of textile material of unknown composition. The methods are generally not useful for distinguishing bers of the same generic class from different manufacturers or for distinguishing different ber types of the same generic class from one producer. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

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. 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.

Many of the generic classes of man-made fibers are produced by several manufacturers and sold under various trademark names as follows Note 1: In addition to other precautions, do not mix reagents or add reagents to a ber solution except as specically indicated in the scheme in Fig. The infrared technique is a useful adjunct to the solubility test method. Take care that the specimen is immersed completely and that it does not touch the sides of the beaker.

Proceed to Checkout Continue Shopping. D — 00a Reapproved Standard Test Methods for Identication of Fibers in Textiles1 This standard is issued under the xed designation D ; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

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