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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These differences will be evident upon microscopical examination of the fiber and may interfere with the measurements of refractive indices and birefringence. The specic gravity of each batch must be determined by a pycnometric technique such as Test Method D or Test Method D Many of the generic classes of man-made bers are produced by several manufacturers and sold under various trademark names as follows Note 1: Link to Active This link will always route to the current Active version of the standard.

Allowing material to reach its melting point results in permanent ber change. Proceed to Checkout Continue Shopping. Summary of Test Method 4. The procedure described here is applicable only to bers that can be obtained in the form of continuous laments. As the voice of the U.

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Standard Test Methods for Identification of Fibers in Textiles

The list does not include examples of bers from two or more generic classes of polymers spun into a single lament. The infrared technique is a useful adjunct to the solubility test method. Comparison of the spectra of unknown materials to a proper set of reference spectra of various ber types see 7.

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Many of the generic classes of man-made fibers are produced by several manufacturers and sold under various trademark names as follows Note The method is often very difficult, and many of the phenomena observed when viewing bers with polarized light are subject to misinterpretation.

These differences will be evident upon microscopical examination of the fiber and may interfere with the measurements of refractive indices and birefringence. Signicance and Use 5.

You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. In general the refractive index of a substance varies with the frequency of the radiation 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.

The analysis of data will be completed and the precision statement will be included in the test method by the end of the year Please first log in with a verified email before subscribing to alerts. It is possible for such modications to interfere seriously with the analyses used in these test methods.

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 list does not include examples of fibers from two or more generic classes of polymers spun into a single filament.

NOTE 5—The internal reection spectroscopy technique is more difficult to use satisfactorily than the KBr disk or lm techniques and it is not recommended for use except by an operator experienced in the technique. Originally approved in The precision and bias astj the nonstandard quantitative test methods described are strongly inuenced by the skill of the operator.

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ASTM D – 12 Standard Test Methods for Identification of Fibers in Textiles

A number in parentheses indicates the year of last reapproval. Many generic classes of fibers are sold with a variety of cross-section shapes designed for specific purposes. Additional atm on ber types and trademarks is given in References 1, 2, and 3. Many generic classes of fibers are sold with a variety of cross-section shapes designed for specific purposes.

Your comments will receive careful consideration at a meeting of the responsible technical ast, which you may attend. Wait for the specied period and check to see whether the bers have been dissolved. E Ethylene glycol type.

ASTM D276 – 12

An interlaboratory study has been organized. This standard has been approved for use by agencies of the Department of Defense. The last approved version of this historical standard is referenced on www.

It is believed that the components of variance of this method are such that ber densities are reproducible to within The list does not awtm examples of fibers from two or more generic classes of polymers spun into a single filament. In such cases it may be impractical to separate the bers mechanically.