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 list does not include examples of fibers from two or more generic classes of polymers spun into a single filament. Place the specimen in d2276 sample beam of the instrument and record the spectrum while scanning from 2.
ASTM D – 00a Standard Test Methods for Identification of Fibers in Textiles
The other methods, especially microscopical examination are generally not suitable for positive identification of most ashm fibers and are useful primarily to support solubility and infrared spectra identifications. Note The list of trademarks in does not include all brands produced in the United States or abroad and imported for sale in the United States.
Methods for determining several physical properties and solubility data useful for conrming infrared spectral identications have been included.
Rinse with water, allow to dry in room air. Transfer the ground mixture to a KBr-disk die and press at approximately 14 MPa psi pressure for 2 to 5 min. It is possible for such modifications to interfere seriously with the analyses used in these test methods.
Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Considerable experience and diligence of the analyst may be necessary to resolve satisfactorily these difficulties. Link to Active This link will always route to the current Active version of the standard.
These procedures should be carried out in a hood and the laboratory adequately ventilated. The analysis scheme based on solubility is very reliable.
ASTM D276 – 12
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. Many of the generic classes of man-made fibers are produced by several manufacturers and sold under various trademark names as follows Note 1: Sampling, Selection, Preparation, and Number of Specimens 6.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. The precision d76 bias of the nonstandard quantitative test methods described are strongly inuenced by the skill of the operator.
Insoluble specimens may be removed from the solvent, rinsed in distilled water, and used for subsequent analyses, if required by limited sample size. 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.
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.
D — 00a FIG.
Describe the material s or product s sampled and the method of sampling used. Summary of Test Method 4.
Dyes, lubricants, and delustrants are not present normally in amounts large enough to interfere with the analyses. These test methods are not recommended for acceptance testing of commercial shipments because of sstm qualitative nature of the results and because of the limitations previously noted.
Therefore record the time and weight at about 2-min intervals until at least 20 min total time has elapsed. Many of the generic classes of man-made fibers are produced by several manufacturers and sold under various trademark names as follows Note A selective solvent refer to Table 1 asm Test Methods D can be very useful in these cases, if one can be found.
KodelT p-ethylene oxybenzoate type: NOTE 6—The wire size is critical because of surface phenomena; coarser wire has greater surface area and ner wire exes, causing a greater effective surface. A-TellT 4 GT 1,4-butanediol asym Securely tie the ends of the skein and cut off the free ends.
In such cases it may be impractical to separate the bers mechanically. 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. These differences will be evident upon microscopical examination of the fiber and may interfere with the measurements of refractive indices and birefringence.
Signicant differences between values reported by different observers are known to occur. Test Method 20 for Identication of Fibers in Textiles2 3. Identication of the ber generic class r276 made by analysis of the ber spectrum using a decision chart Fig. 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 satm properties, particularly the melting point.
Hang the wire hook with its ee end immersed x276 mL of displacing liquid Fig.