ANSI/ASTM D2842-2001 硬质泡沫塑料吸水性测试方法

标准号：ANSI/ASTM D2842-2001
中文标准名称：硬质泡沫塑料吸水性测试方法
英文标准名称：Test Method for Water Absorption of Rigid Cellular Plastics (08.02)
标准类型：G31
发布日期：1999/12/31 12:00:00
实施日期：2001/11/10 12:00:00
中国标准分类号：G31
国际标准分类号：83.100
适用范围： This test method covers the determination of the water absorption of rigid cellular plastics by measuring the change in buoyant force resulting from immersion under a 5.1-cm (2-in.) head of water for the specified immersion period of 96 h. This test method describes two procedures that shall be used to measure the change in buoyant force. Procedure A shall be used for materials that either experience rapid water absorption or that show an increase in volume during the exposure period, or both. Materials that do not exhibit either of these characteristics shall be evaluated by Procedure B. For specific applications, immersion periods varying from the normal 96-h test requirement shall be agreed upon between the manufacturer and the purchaser. The values stated in SI units are to be regarded as the 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. This test method is equivalent to ISO 2896.