ANSI/ASTM D3576-1998 硬质泡沫塑料孔径尺寸测试方法(08.02)

标准号：ANSI/ASTM D3576-1998
中文标准名称：硬质泡沫塑料孔径尺寸测试方法(08.02)
英文标准名称：Test Method for Cell Size 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：1999/2/10 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 apparent cell size of rigid cellular plastics by counting the number of cell-wall intersections in a specified distance. Procedure A requires the preparation of a thin slice, not more than one half the average cell diameter in thickness, that is mechanically stable. For most rigid cellular plastics this limits the test method to materials with an average cell size of at least 0.2 mm. Procedure B is intended for use with materials whose friable nature makes it difficult to obtain a thin slice for viewing. The values stated in SI units are to be regarded as the standard. The values given in brackets are for information only. 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 -The annex to ISO 2896 is technically equivalent to this test method.