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ASTM D2838-95

Historical Revision

Standard Test Method for Shrink Tension and Orientation Release Stress of Plastic Film and Thin Sheeting

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1.1 This test method covers the determination of the shrink tension and related characteristics, that is, shrink force and orientation release stress, of heat-shrinkable plastic film and sheeting of less than 1.0 mm (0.04 in.) thickness. Two procedures are described that permit the measurement of shrink forces at predetermined temperatures. They are as follows:

1.1.1 Procedure A is designed to measure the maximum force exerted by a specimen that is totally restrained from shrinking as it is heated rapidly to a specific temperature.

1.1.2 Procedure B is designed to measure the maximum force exerted by a specimen that is permitted to shrink a predetermined amount prior to restraint while being heated rapidly to a specific temperature.

1.2 Orientation release stress can be determined from the data obtained using Procedure A.

1.3 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.

Note 1—There is no equivalent ISO test method.

1.4 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.


SDO ASTM: ASTM International
Document Number D2838
Publication Date April 10, 2002
Language en - English
Page Count 4
Revision Level 95
Supercedes
Committee D20.19
Publish Date Document Id Type View
April 1, 2018 D2838-18 Revision
May 1, 2009 D2838-09E01 Revision
May 1, 2009 D2838-09 Revision
Nov. 1, 2008 D2838-08 Revision
Sept. 1, 2007 D2838-07 Revision
April 10, 2002 D2838-95 Revision
April 10, 2002 D2838-02 Revision