ANSI/ASTM D2838-1997
塑料薄膜和薄板收缩张力及定向释放应力试验方法

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

ANSI/ASTM D2838-1997 发布历史

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

ANSI/ASTM D2838-1997由美国国家标准学会 US-ANSI 发布于 1997，并于 1997-03-05 实施。

ANSI/ASTM D2838-1997 在中国标准分类中归属于: G31 合成树脂、塑料基础标准与通用方法，在国际标准分类中归属于: 83.140.10 薄膜和薄板。

ANSI/ASTM D2838-1997的历代版本如下：

• 1997年 ANSI/ASTM D2838-1997 塑料薄膜和薄板收缩张力及定向释放应力试验方法

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标准号

ANSI/ASTM D2838-1997

发布日期

1997年

实施日期

1997年03月05日

废止日期

无

中国标准分类号

G31

国际标准分类号

83.140.10

发布单位

US-ANSI

适用范围

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