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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As a general guide, the lms should be cast thin enough to be nearly transparent. This standard is not included in any packages.
The precision and bias of the nonstandard quantitative test methods described are strongly influenced by the skill of the operator. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Please first verify your email before subscribing to alerts.
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. Link to Active This link will always route to the current Active version of the standard. Dyes, lubricants, and delustrants are not present normally in amounts large enough to interfere with the analyses.
Other techniques such as, microscopical examination or comparison of physical properties are used to ast, the v276 or to distinguish between those ber classes anidex, aramid, asbestos, uorocarbon, asm, and novoloid which are not dissolved by any of the reagents used in this scheme.
ASTM D276 – 12
The infrared technique is a useful adjunct to the solubility test method. Many fibers are chemically modified by their producers in various ways so as to alter their properties.
D — 00a FIG.
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.
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.
Additional information on fiber types and trademarks is given in References 1, 2, and 3. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. The infrared technique is a useful adjunct to the solubility test method. Cool the chamber, and repeat the measurement on a new specimen.
Allowing material to reach its melting point results in permanent fiber change.
Note 5—The internal reflection spectroscopy technique is more difficult to use satisfactorily than the KBr disk or film techniques and it is not recommended for use except by an operator experienced in the technique. Many of the generic classes of man-made bers are produced by several manufacturers and sold under various trademark atsm as follows Note 1: Single-determination density estimates by d2276 operator for one sample of ber from measurements in two different displacing liquids one a mild solvent for the ber, the other a mild swelling agent agreed to within 0.
Many fibers are chemically modified by their producers in various ways so as to alter their properties.
ASTM D – 12 Standard Test Methods for Identification of Fibers in Textiles
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. Originally approved in The list does not include examples of fibers from two or more generic classes of polymers spun into a single filament.
An alternative test for identication of d2276 unknown ber is by comparison with properly identied bers used as reference standards. Interpretation of Results The list does not include examples of bers from two or more generic classes of polymers spun into a single lament.
Your Alert Profile lists the documents that will be monitored. The precision and bias of the s276 quantitative test methods described are strongly inuenced by the skill of the operator. Place the specimen in the sample beam of the instrument and record the spectrum while scanning from 2.
Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Signicance and Use 5. C Some modarylic bers cannot be distinguished from acrylic bers in this solubility scheme. C Qstm, always weak, sometimes negative.
A selective solvent refer to Table 1 of Test Methods D can be very useful in these cases, if one can be found. In order to accomplish this, it is necessary to consider the following: Many generic classes of fibers are sold with a variety of cross-section shapes designed for specific purposes.
Accordingly, if the ber is dissolved at any point in the analysis, perform subsequent tests on a fresh specimen.