ISO 4638-1984 软质泡沫聚合材料 气流透过率的测定

标准号：ISO 4638-1984
中文标准名称：软质泡沫聚合材料 气流透过率的测定
英文标准名称：Polymeric materials, cellular flexible; Determination of air flow permeability
标准类型：G30
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：G30
国际标准分类号：83.100
适用范围：Applicable to test pieces cut from products of cellular materials. Useful for two purposes: a) studying the structure of cellular products in connection with their physical properties and their method of manufacture and b) ensuring product quality (quality assurance). Describes principle, apparatus, test piece and conditions, procedure and calculation and expression of the results. Three figures deliver the details for testing.