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ASTM D1204-08

Historical Revision

Standard Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature

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1.1 This test method covers the measurement of changes in linear dimensions of nonrigid thermoplastic sheeting or film that result from exposure of the material to specified conditions of elevated temperature and time.

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

1.3 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—This test method and ISO 11501 address the same matter, but differ in technical content (and results cannot be directly compared between the two methods).


This test method is particularly applicable to nonrigid thermoplastic sheeting or film made by the calender or extrusion process. The test gives an indication of lot-to-lot uniformity as regards to the degree of internal strains introduced during processing.

The heating medium in this test method is air and may not yield the same results as Test Method D 2732, which uses a liquid medium.

Before proceeding with this test method, reference should be made to the specification of the material being tested. Any test specimen preparation, conditioning, dimensions, or testing parameters, or combination thereof, covered in the relevant ASTM material specification shall take precedence over those mentioned in this test method. If there are no relevant ASTM material specifications, then the default conditions apply. Table 1 of Classification System D 4000 lists the ASTM material standards that currently exist.

SDO ASTM: ASTM International
Document Number D1204
Publication Date Nov. 1, 2008
Language en - English
Page Count 2
Revision Level 08
Supercedes
Committee D20.19
Publish Date Document Id Type View
March 1, 2014 D1204-14 Revision
Nov. 1, 2008 D1204-08 Revision
March 1, 2007 D1204-07 Revision
Nov. 10, 2002 D1204-02 Revision
Oct. 15, 1994 D1204-94E01 Revision
April 1, 2020 D1204-14R20 Reaffirmation