ASTM D1248 PDF

Buy ASTM D SPECIFICATION FOR POLYETHYLENE PLASTICS EXTRUSION MATERIALS FOR WIRE AND CABLE from SAI. This standard is issued under the fixed designation D ; the 1 This specification is under the jurisdiction of ASTM Committee D20 on. ASTM D Standard Specification for Polyethylene Plastics Extrusion Materials for Wire and Cable.

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Solution viscosity is recommended as a means of distinguishing such materials.

ASTM D1248 Polyethylene Plastics Extrusion for Wire and Cable | Test Equipment

The melt viscosity of polyethylene plastics, in sstm with that of most high polymers, is non-Newtonian, that is, dependent on the rate of shear. ASTM D refers to a number of ASTM mechanical testing standards to determine physical characteristics of polyethylene plastic extrusion wire and cable.

Bench marks or a high range extensometer shall be used for the determination of elongation at break.

Prepare the specimens in accordance with Test Methods D for physical tests of insulations and jackets. NOTE 12—If it is known or suspected that the material contains moisture, the sample should be dried prior to being tested, but otherwise no sstm is required. However, the degradation rate of polyethylene has been found to be more variable than in the irradiance controlled unit and may be as little as 1?

J3 12 [] —75 For all materials asstm be conditioned for electrical xstm, conditioning shall comply with the requirements of the standard test methods for c1248 testing. Prepare the specimens in accordance with Test Methods D for physical tests of insulation and jackets.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Active view current version of standard. This standard does not purport to address all of the safety concerns, if any, associated with its use.

Individual reprints single or multiple copies of this standard may be obtained by contacting Asmt at the above address or at phonefaxor service astm. For information regarding molding and extrusion materials, see Specification D Also, it is anticipated that additional requirements may be added under a given grade designation by future revision to provide more meaningful characterization of the material covered by such designation. The initial grip separation shall be For information regarding molding and extrusion materials, see Speci?

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Work Item s – proposed revisions of this standard.

For all materials to be tested for electrical properties, the laboratory shall comply with the requirements of the standard test methods for electrical testing. E2 10 [] — E6 17 [] — Note 1—There is no known ISO equivalent to this standard.

In all cases the laboratory shall report both the temperature and humidity conditions during the conditioning period.

It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. NOTE 14—The h exposure period speci?

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. This specification provides for the identification of polyethylene plastics extrusion materials for wire and cable in such a manner that the seller and the purchaser can agree on the acceptability of different commercial lots or shipments. It is not the function of this speci? Cuts test specimens from stock material Available for a wide variety of ISO and ASTM standards Consistent specimens for consistent results Manufactured with tool steel to resist damage and wear over time.

Force range of 5 kN to kN 1, lbf tolbf Adjustable test space The most popular choice for static tension and compression tests These dual column testers are available in both tabletop and floor standing models.

Therefore, this type of unit is not recommended as a laboratory accelerated weathering test to qualify materials for outdoor applications. Irradiance at the control point shall be maintained at 0. The following additional instructions and the precautions of Note 12 shall be observed: See Guide D and 3. Other attributes important for certain applications are covered by three general classes and by specifying in greater detail, by grades, a minimum d1284 of key characteristics covered too broadly or not at all by the type, class, and category designations.

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ASTM D Polyethylene Plastics Extrusion for Wire and Cable | Test Equipment

Rather, the material is to be checked initially for compliance with this requirement and, after that, as often as necessary to assure continued compliance. Current edition approved March 1, Prepare the specimens in accordance with Methods D for physical tests of insulations and jackets. Originally approved in Historical Version s – view previous versions of standard. A superscript epsilon e indicates an editorial change since the last revision or reapproval.

March 1, 1 2 3 4 5 Added a new Section The following terminology is in use in ASTM speci? J5 22 [] —75 We offer machines, apparatus, testers, tensile grips, test fixtures, clamps, holders, jigs, faces, jaws, extensometers, environmental and humidity chambers, furnaces, baths and custom solutions for unique applications. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

Test specimens over 7 mm in thickness shall be conditioned for 88 h. By means of our testing expertise and modular product design, we will c1248 find the solution that is right for you. Make duplicate determinations using two separate portions of the same molding or from two moldings. Each of five types and categories is subdivided into four classes according to composition and use as follows: Perform the tests in accordance with Practices DG and G using?

Other grades may be added as necessary by revision of this speci? The degree of departure from Newtonian behavior depends on the nature and molecular constitution of the individual sample. In the absence of contrary requirements, the following values shall apply: Test results for specimens that break outside the gage-marks after extensive cold drawing need not be discarded unless the break occurs between the contact surfaces of a grip.

It is d2148 responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to astn.