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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Differences in tenacity, linear density, bulkiness, or the presence of inert delustrants normally 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. Note 2—For statements on precision and bias of the standard quantitative test methods for determining physical properties for confirmation of fiber identification refer to the cited test method.

The other methods, especially microscopical examination are generally not suitable for positive identication of most man-made bers and are useful primarily to support solubility and infrared spectra identications. These procedures should be carried out in a hood and the laboratory adequately ventilated. 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.

Many of the generic classes of man-made bers are produced by several manufacturers and sold under various trademark names as follows Note 1: This listing is not meant to exclude other ber types or to restrict the choice of alternative solvents.

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

The analysis scheme based on solubility is very reliable. C Some modarylic bers cannot be distinguished from acrylic bers in this solubility scheme.

In general the refractive index of a substance varies with the frequency of the radiation Interpretation of Results Active view current version of standard.

These differences will be evident upon microscopical examination of the ber and may interfere with the measurements of refractive indices and birefringence. Many of the generic classes of man-made fibers xstm produced by v276 manufacturers and sold under various trademark names as follows Note 1: Place the specimen in the sample beam of the instrument and record the spectrum while scanning from 2.

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Standard Test Methods for Identification of Fibers in Textiles

Methods for determining several physical properties and solubility data useful for conrming infrared spectral identications have been included. NOTE 2—For statements on precision and bias of the standard quantitative test methods for determining physical properties for conrmation of ber identication refer to the cited test method. Additional information on fiber types and trademarks is given in References 1,2, and 3.

Link to Active This link atsm always route to the current Active d76 of the standard. The listed values are for specic bers which warrant the highly precise values given. I p-ethylene oxybenzoate type.

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

Additional information on fiber types and trademarks is given in Refs 1, 2, and 3. Link to Active This link will always route to the current Active version of the standard. Fiber density is the extrapolated apparent density at zero time. 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.

Many of the generic classes of man-made fibers are produced by several manufacturers and qstm under various trademark names as follows Note 1: Accordingly, if the ber is dissolved at any point in the analysis, perform subsequent tests on a fresh specimen. Many of the generic classes of man-made fibers are produced asym several manufacturers and sold under various trademark names as follows Note 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.

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. Please first log in with a verified email before subscribing to alerts.

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Historical Version s – view previous versions of standard. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. In order to accomplish this, it is necessary to consider 2d76 following: The methods have been revised completely, emphasizing infrared spectroscopic techniques for identifying man-made ber types.

ASTM D276 – 12

The procedure described here is applicable only to bers that can be obtained in the form of continuous laments. Transfer the ground mixture to a KBr-disk die and press at approximately 14 MPa psi pressure for 2 to 5 min.

A number in parentheses indicates the year of last reapproval. It is possible for aastm modifications to interfere seriously with the analyses used in these test methods.

These test methods are not recommended for acceptance testing of commercial shipments because of the qualitative nature zstm the results and because of the limitations previously noted.

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

Many of the generic classes of man-made fibers are produced by several manufacturers and sold under various trademark names as follows Note 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 infrared technique is atsm useful adjunct to the solubility test method.