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ASTM D3769-05

Historical Revision

Standard Test Method for Microcellular Urethanes—High-Temperature Sag

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1.1 This test method covers the procedure and apparatus for measuring high-temperature sag of microcellular urethane materials.

1.2 The values stated in SI units are to be regarded as standard.

This standard does not purport to address all of the safety concerns, if any, associated with its use. 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.

Note 1

There is no similar or equivalent ISO standard to this test method.


This test method is used to indicate the deformation tendency of microcellular materials that may occur during paint application in an assembly plant operation. Since a standard specimen is used, heat sag measurements cannot be assumed to be exactly those which will occur on a part during or after the paint application and baking operation of an assembly process.

Before proceeding with this test method, reference should be made to the specification of the material being tested. Any test specimen preparation, conditioning, or dimensions, or combination thereof, and testing parameters covered in the materials specification shall take precedence over those mentioned in these test methods. If there are no material specifications, then the default conditions apply.

Note 2—This test method is applicable to solid urethanes.

SDO ASTM: ASTM International
Document Number D3769
Publication Date Nov. 1, 2005
Language en - English
Page Count 3
Revision Level 05
Supercedes
Committee D20.22
Publish Date Document Id Type View
July 1, 2020 D3769-20 Revision
Sept. 1, 2015 D3769-15 Revision
Aug. 1, 2010 D3769-10 Revision
Nov. 1, 2005 D3769-05 Revision
Jan. 1, 2000 D3769-96 Revision
Jan. 1, 2000 D3769-96R00 Reaffirmation