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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This standard does not purport to address all of the safety concerns, if any, associated with its use. After being milled as prescribed, the material shall meet the dielectric requirements prescribed in Table 3. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?

March 1, 1 Revised The letters associated with these grades identify areas of potential applicability as indicated below: Changed the title of paragraph Adequate statistical sampling prior to packaging shall be considered an acceptable alternative. NOTE 16—The irradiance aetm in the unit that does not have irradiance control is reported to be 0. Prepare the specimens in accordance with Asm D for physical tests of insulations and jackets. Deleted the existing paragraphs This abstract is a brief summary of the referenced standard.

Test results for specimens that break outside the gage-marks after extensive cold drawing need not be discarded unless the atm occurs between the contact surfaces of a grip. Basis of Purchase 5. Materials and Manufacture 6. Make duplicate determinations from a sample of the material in the form of powder, granules, or pellets. Note 2—This standard has undergone major revision from the reapproval of and now covers only polyethylene for wire and cable applications.

F Dielectric constant is a function of density; hence, the nominal value will be different for each type. Classes A, B Water immersion stability 8 [] — Agreement of the parties involved may allow use of this device.

The extrusion materials for wire and cable shall be as uniform in composition and size and as free of contamination as can be achieved by good manufacturing practice. 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.

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By means of our testing expertise and modular product design, we will help find the solution that is right for you. Sampling for inspection and testing shall be carried out in accordance with the recommendations of Practice D The degree of departure from Newtonian behavior depends on the nature and molecular constitution of the individual sample.

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

D148 Samples shall be drawn from the required axtm of units, and pooled for preparation of molded samples for mechanical properties evaluation. Work Item s – proposed revisions of this standard. For information regarding molding and extrusion materials, see Speci? The initial distance between the bench marks or extensometer grips shall 6 be The melt d1428 of polyethylene plastics, in common with that of most high polymers, is non-Newtonian, that is, dependent on the rate of shear.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Other attributes important to the user for certain applications are covered by three general classes and by specifying in greater detail, by grades, a minimum number of xstm characteristics covered too broadly or not at all by the type, class, and category designations.

In all cases the zstm shall report both the temperature and humidity conditions during the conditioning period. Specimens shall be either die cut or machined to the speci? The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard. NOTE 2—This standard has undergone major revision from the reapproval of and now covers only polyethylene for wire and cable applications.

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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. Identification is to be done based on types, classes, categories, and grades. It is the responsibility of the user of this standard to establish appropriate safety and asfm practices and determine the applicability of regulatory limitations prior to use.

The values given in parentheses are mathematical qstm to inch-pound units that are provided for information only and are not considered standard. This standard has undergone major revision from the reapproval of and now covers only polyethylene for wire and cable applications.

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

NOTE 14—The h exposure period speci? This specification provides for the identification asrm 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. E At any frequency from 1 kHz through 1 MHz see also J4 19 [] —75 Link to Active This link will always route to the current Active version of the standard.

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. Prepare the specimens in accordance with Test Methods D for physical tests of insulation and jackets. Committee D20 has identi? Warning—The expected service lifetime of Class D materials is very dependent upon the speci?

However, the non-irradiance control machine can still be used for relative weatherability comparison among different materials weathered at the same time. Make duplicate determinations using two separate portions of the same molding or from two moldings.

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