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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Active view current version of standard. Considerable experience and diligence of the analyst may be necessary to resolve satisfactorily these difficulties. It is the responsibility of the user of this standard to establish appropriate safety and health practices and atsm the applicability of regulatory limitations prior to use.

Asfm of the ber generic class is made by analysis of the ber spectrum using d2766 decision chart Fig. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every ve years and if not revised, either reapproved or withdrawn. The precision and bias of the nonstandard quantitative test methods described are strongly influenced by the skill of the operator.

I p-ethylene oxybenzoate type. Many of the generic classes of man-made fibers are produced by several manufacturers and sold under various trademark names as follows Note Numerically, birefringence is the difference between the maximum and minimum refractive indices.

The longitudinal and cross-section photographs of the various bers have been omitted since they are published elsewhere and the usefulness for identication is limited. Rinse with water, wstm to dry in room air. Originally approved in The analysis scheme based on solubility is very reliable.

Standard Test Methods for Identification of Fibers in Textiles

Sampling, Selection, Preparation, and Number of Specimens 6. The precision and bias of the nonstandard quantitative test methods described are strongly influenced by the skill of the operator.

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Hang the wire hook with its ee end immersed in mL of displacing liquid Fig.

Comparison of the spectra of unknown materials to a d2776 set of reference spectra of various ber types see 7. Considerable experience and diligence of the analyst may be necessary to resolve satisfactorily these difficulties.

Interpretation of Results Additional information on fiber types and trademarks is given in References 1, 2, and 3.

Describe the material s or product s sampled and the method of sampling used. The other methods, especially microscopical examination are generally not suitable for positive identification of most d267 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 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 procedure described here is applicable only to bers that can be obtained in the form of continuous laments. Therefore record the time and weight at about 2-min intervals until at least 20 min total time has elapsed.

These test methods are not recommended for acceptance testing of commercial shipments because of the qualitative nature of the results and because of the limitations previously noted. A-TellT 4 GT 1,4-butanediol type: Cast lms from solution on a rock salt plate using a glass stirring rod and permit the solvent to evaporate. D — 00a FIG. Signicance and Use 5. 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.

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.

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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. Precision and Bias The infrared technique is a useful adjunct to the solubility test method. C Varies, always weak, sometimes negative.

A number in parentheses indicates the year of last reapproval. In such cases it may be impractical to separate the bers mechanically.

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

KodelT p-ethylene oxybenzoate type: If the document is revised or amended, you will be notified by email. Extrapolate the straight-line portion back to zero time, if aastm. This standard has been approved for use by agencies of the Department of Defense.

Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. Many of the generic classes of man-made fibers are produced by several manufacturers and sold under various trademark names as follows Note 1: Many of the generic classes of man-made bers are produced by several manufacturers and sold under various trademark names as follows Note 1: Insoluble specimens may be removed from the solvent, rinsed in distilled water, and used for subsequent analyses, if required by limited sample size.

It is possible for such modifications to interfere seriously with the analyses used in these test methods.