ASTM D4020 PDF

Results 1 – 16 of UHMW (Ultra High Molecular Weight Polyethylene) Sheet, Opaque White, Standard Tolerance, ASTM D by Small Parts. Results 1 – 16 of 70 UHMW (Ultra High Molecular Weight Polyethylene) Sheet, Opaque White, Standard Tolerance, ASTM D, D, D, 1/16″. Buy ASTM D – 18 Standard Specification for Ultra-High-Molecular-Weight Polyethylene Molding and Extrusion Materials from SAI Global.

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ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

Historical Version s – view previous versions of standard. Work Item s – proposed revisions of this standard. Link to Active This link will always route to the current Active version of the standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. This specification provides for the identification of virgin, unmodified homopolymer ultra-high-molecular-weight polyethylene UHMW-PE molding and extrusion plastic materials in the form of powder, granules, or pellets.

It is not equivalent to ISO in any other measurement or section X5. This identification is made in such a manner that the seller and purchaser can agree on the acceptability of different commercial lots or shipments.

Work Item s – proposed revisions of this standard. The values given in parentheses are for information only.

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The melt flow rate in accordance with test method D cannot be determined for this material because ultra high molecular weight polyethylene does not have a melt flow.

Note 1—This standard and ISO address the same subject matter, but differ in technical content.

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. Sampled specimens shall be tested for dilute solution viscosity.

This standard and ISO address the same subject matter, but differ in technical content. ISO provides a classification system based on various characteristics and a range of viscosity numbers determined in accordance with ISO 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.

This identification is made in such a manner that the seller and purchaser can agree on the acceptability of different commercial lots or shipments. Application of this test method shall be limited to the characterization of virgin, unmodified UHMW-PE resins, not commercially processed products. ISO provides a classification system based on various characteristics and a range of viscosity numbers determined in accordance with ISO It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

Ultra High Molecular Weight Polyethylene (UHMW/PE)

This test method specifies the same type of pendulum impact test machine as that given in Test Method D but introduces a much higher degree of stress concentration into the specimen by double notching with a razor blade. Link to Active This link will always route to the current Active version of the standard. It is not equivalent to ISO in any other measurement or section. The values given in parentheses are for information only.

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Adtm elongational stress method is invalid on a asmt thermally-processed material due to possible crosslinking. This specification is not intended to differentiate between various molecular weight grades of commercially available UHMW-PE, nor does it function to provide specific engineering data for design purposes.

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Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

The elongational stress is also be referred to as ZST and flow value, or both.

Only Eq 1 listed in 3. This standard does not purport to address all of the safety concerns, if any, associated with its use. This standard does not purport to address all of the safety concerns, if any, associated with its use. This abstract is a brief summary of the referenced standard.

Active view current version of standard. It is advised that the user be familiar with Test Method D before attempting to use this test method.