【英文标准名称】:Thermal-insulatingmaterials-Determinationoflong-termwaterabsorptionbydiffusion
【原文标准名称】:隔热材料.通过扩散测定长期吸水率
【标准号】:ISO20393-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-06
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC61
【标准类型】:()
【标准水平】:()
【中文主题词】:多孔材料;扩散;泡沫橡胶;材料测试;塑料;规程;硬质泡沫塑料;橡胶;试验设备;试样;测试;吸水率
【英文主题词】:Cellularmaterials;Diffusion;Foamedrubber;Materialstesting;Plastics;Procedures;Rigidfoams;Rubber;Testequipment;Testspecimens;Testing;Waterabsorption
【摘要】:ThisInternationalStandardspecifiesequipmentandproceduresfordeterminingthelong-termwaterabsorptionoftestspecimensbydiffusion.Itisintendedforusewiththermal-insulationproducts.Itisdesignedtosimulatetheabsorptionofwaterbyproductssubjectedforalongperiodoftimenotonlytohighrelativehumidity,approximatingto100%,onbothsides,butalsotoawatervapourpressuregradient,asexperiencedbye.g.invertedrooforunprotectedgroundinsulation.Thetestisnotapplicabletoalltypesofthermal-insulationproduct.Theproductstandardshouldnormallystatewhetherthistestisapplicabletoaparticularproduct.
【中国标准分类号】:Q25
【国际标准分类号】:83_100
【页数】:5P;A4
【正文语种】:英语