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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It is not the function of this ashm to provide specific engineering data for design purposes. The degree of departure from Newtonian behavior depends on the nature and molecular constitution of the individual sample. For information regarding molding and extrusion materials, see Specification D Work Item s – proposed revisions of this standard.

Adequate statistical sampling prior to packaging shall be considered an acceptable alternative. The tests involved in this speci? NOTE 12—If it d12488 known or suspected that the material contains moisture, the sample should be dried prior to being tested, but otherwise no conditioning is required. ASTM does asm give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

E5 12 [] —75 NOTE 8—Tables 4 and 5, are included to correspond with the grades speci? For information regarding molding and extrusion materials, see Speci?

Materials and Manufacture 6. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. NOTE 6—Carbon black 35 nm or less in average particle diameter is used as required in black electrical and jacketing materials Grades E and J to impart maximum weather resistance. J5 22 [] —75 It is not the function wstm this specification to provide specific engineering data for design purposes.

The initial distance between the bench marks or extensometer grips shall 6 be Packaging and Package Marking Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. NOTE 15—Longer periods of exposure will be required for older xenon-arc machines operated at irradiance of 0. E3 10 [] — We offer machines, apparatus, testers, tensile grips, test fixtures, clamps, holders, jigs, faces, jaws, extensometers, environmental and humidity r1248, furnaces, baths and custom solutions for unique applications.

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Category 1,Category 2, Category 3,Category 4, and Category 5.

Specimens shall be either die cut or machined to the speci? 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. E4 12 [] —75 Any other size atm laboratory mill may be used provided the charge is adequate to maintain a uniform rolling bank on the rolls and to furnish sufficient material for test specimens.

D — 05 Standard Speci? This standard does not purport to address all of the safety concerns, if any, associated with its use.

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

Have a question about conducting the test for this 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 key characteristics covered too broadly or not at all by the type, class, and category designations.

Condition only as speci? Sampling for inspection and testing shall be carried out in accordance with the recommendations of Practice D Note 3—See Guide D and 3. To illustrate the manner in which the maximum limit for the dielectric constant of a particular, grade is determined, assume that a Type I, Class A material is to be supplied under Grade E2, then its maximum limit for dielectric constant will be 2.

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Similarly, there are other polyethylene plastics of very high molecular weight having densities slightly less than 0. Renumbered existing Section 11 to Section 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. E At any frequency from 1 kHz through 1 MHz see also 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.

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

The melt viscosity of polyethylene plastics, in common with that of most high polymers, is non-Newtonian, that is, dependent on the rate of shear. March 1, 1 2 3 4 5 Added a new Section Note 2—This standard has undergone major revision from the reapproval of and now covers only polyethylene for wire and cable applications.

Solution viscosity is recommended as a means of distinguishing such materials. Deleted the existing paragraphs This abstract is a brief summary of the referenced standard. The molded specimen thickness shall be 1. For all materials to be conditioned for electrical testing, conditioning shall comply with the requirements of the standard test methods for electrical testing.

Other attributes important for certain applications are covered by three general classes and by specifying in greater detail, by grades, a minimum number of key characteristics covered too broadly or not at all by the type, class, and category designations.

This standard does not purport to address all of the safety concerns, if any, associated with its use. Its purpose d248 to establish that a suitable antioxidant is present in adequate quantity.

E2 10 [] — The following terminology is in use in ASTM speci?