SAE AMS3903/2 Cloth, Organic Fiber, High Modulus, Epoxy Resin Impregnated, Oc Style 181, 175 (350)
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来源:标准资料网
Product Code:SAE AMS3903/2
Title:Cloth, Organic Fiber, High Modulus, Epoxy Resin Impregnated, Oc Style 181, 175 (350)
Issuing Committee:Ams P17 Composite Materials Committee
Scope:This specification covers one type of epoxy-resin-impregnated organic fibers in the form of woven cloth. Primarily for use in lightweight composites requiring high strength in tension at temperatures up to 175 degrees C (350 degrees F). Style 181 cloth woven from organic fibers, impregnated with epoxy resin for service at temperatures up to 175 degrees C (350 degrees F).
上一篇:
SAE AMS3903/1 Cloth, Organic Fiber, High Modulus, Epoxy Resin Impregnated, Oc Style 120, 175 (350)下一篇:
SAE AMS3903/3 Cloth, Organic Fiber, High Modulus, Epoxy Resin Impregnated, Oc Style 281, 175 (350)Product Code:SAE AS81822/6
Title:Wire, Electrical, Solderless Wrap, Extruded Polytetrafluoroethylene (PTFE) Insulation, Silver Coated Solid Conductor (STABILIZED Jul 2011)
Issuing Committee:Ae8-D Wire And Cable Committee
Scope:No scope available.【英文标准名称】:Acoustics-Measurementofsoundinsulationinbuildingsandofbuildingelementsusingsoundintensity-Laboratorymeasurementsatlowfrequencies
【原文标准名称】:声学.用声强进行建筑物和建筑构件的隔声测量.低频率实验室测量
【标准号】:BSENISO15186-3-2010
【标准状态】:现行
【国别】:英国
【发布日期】:2002-11-22
【实施或试行日期】:2002-11-22
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:声学试验;声学;建筑物;组件;条件;建筑;定义(术语);实验室测试;低频;测量;测量技术;隔音;声强;结构构件
【英文主题词】:Acoustictesting;Acoustics;Buildings;Components;Conditions;Construction;Definitions;Laboratorytesting;Lowfrequencies;Measurement;Measuringtechniques;Soundinsulation;Soundintensity;Structuralmembers
【摘要】:ThispartofISO15186specifiesasoundintensitymethodtodeterminethesoundreductionindexandtheelementnormalizedleveldifferenceofbuildingelementsatlowfrequencies.ThismethodhassignificantlybetterreproducibilityinatypicaltestfacilitythanthoseofISO140-3,ISO140-10andISO15186-1.Theresultsaremoreindependentoftheroomdimensionsofthelaboratoryandclosertovaluesthatwouldbemeasuredbetweenroomsofvolumegreaterthan300m.ThispartofISO15186isapplicableinthefrequencyrange50Hzto160Hzbutismainlyintendedforthefrequencyrange50Hzto80Hz.NOTEForelementsfacedwiththick,porousabsorbers,therecommendedfrequencyrangeis50Hzto80Hz.ThemaindifferencesbetweenthemethodsofISO15186-1andISO15186-3arethatinISO15186-3a)thesoundpressurelevelofthesourceroomismeasuredclosetothesurfaceofthetestspecimen,andb)thesurfaceoppositethetestspecimeninthereceivingroomishighlyabsorbingandconvertstheroomacousticallyintoaductwithseveralpropagatingcross-modesabovethelowestcut-onfrequency.TheresultsfoundbythemethodofISO15186-3canbecombinedwiththoseofISO140-3andISO15186-1toproducedatainthefrequencyrange50Hzto5000Hz.
【中国标准分类号】:P31
【国际标准分类号】:91_120_20
【页数】:22P.;A4
【正文语种】:英语
