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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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.

If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. Many fibers are chemically modified by their producers in various ways so as to alter their properties.

Mix with about mg of powdered KBr and grind in the ball mill for 1 to 2 min.

Considerable experience and diligence of the analyst may be necessary to resolve satisfactorily these difficulties. The infrared technique is a useful adjunct to the solubility test method.

The limited use of the test methods for qualitative identification cannot justify the effort that would be necessary to determine the precision and bias v276 the techniques.

Accordingly, if the ber is dissolved at any point in the analysis, perform subsequent tests on a fresh specimen. Signicance and Use 5. These differences will be evident upon microscopical examination of the fiber and may interfere with the measurements of refractive indices and birefringence.

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ASTM D276 – 12

The infrared technique is a useful adjunct to the solubility test method. The methods are generally not useful for distinguishing fibers of the same generic class from different manufacturers or for distinguishing different fiber types of the same generic class from one producer. The list does not include examples of fibers from two or more generic classes of polymers spun into a single filament. The analysis scheme based on solubility is very reliable. Link to Active This link will always route to the current Active version of the standard.

The list does not include examples of fibers from two or more generic classes of polymers spun into a single filament. Many generic classes of bers are sold with a variety of cross-section shapes designed for specic purposes.

NOTE 4—With the exception of the test to distinguish silk and wool and the melting of Saran, all of the decision points of the scheme Fig. In such cases it may be impractical to separate the bers mechanically.

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

We have no amendments or corrections for this standard. Test Method 20 for Identication of Fibers in Textiles2 3. Differences in tenacity, linear density, bulkiness, or the presence of inert delustrants asym do not interfere with analytic tests, but chemical modications for such purposes as increased dyeability with certain dyestuffs may affect the infrared spectra and some of the physical properties, particularly the melting point. Link to Active This link will always route to the current Active version of the standard.

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Your Alert Profile lists the documents that will be monitored. D — 00a A No. Additional information on fiber types and trademarks is given in References 1,2, and 3.

ASTM D – 12 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 to support solubility and infrared spectra identifications. Describe the material s asgm product s sampled and the method of sampling used.

This standard has been approved for use by agencies of the Department of Defense. The methods have been revised completely, emphasizing infrared d726 techniques for identifying man-made ber types. Need more than one copy?

Standard Test Methods for Identification of Fibers in Textiles

Make a small hole on the lid with a needle and asfm the pan with the help of a sample crimper. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Record the weight of the dd276 hook, H, to the nearest 0. Current edition approved Aug. The analysis of data will be completed and the precision statement will be included in the test method by the end of the year C Some modarylic bers cannot be distinguished from acrylic bers in this solubility scheme.

Purity of Reagents 8.

Many generic classes of fibers are sold with a variety of cross-section shapes designed for specific purposes.