BS EN 23953-1993 金属粉末.摇实密度的测定

作者:标准资料网 时间:2024-05-16 08:15:06   浏览:9805   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:Metallicpowders.Determinationoftapdensity
【原文标准名称】:金属粉末.摇实密度的测定
【标准号】:BSEN23953-1993
【标准状态】:作废
【国别】:英国
【发布日期】:1993-06-15
【实施或试行日期】:
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:粒状材料;质量(物质);样本;试验设备;密度测量;粉末冶金;金属
【英文主题词】:metals;densitymeasurement;samples;particulatematerials;testequipment;powdermetallurgy;mass
【摘要】:
【中国标准分类号】:H70
【国际标准分类号】:
【页数】:12P;A4
【正文语种】:英语


下载地址: 点击此处下载
【英文标准名称】:Buildingacoustics-Estimationofacousticperformanceofbuildingsfromtheperformanceofelements-Part3:Airbornesoundinsulationagainstoutdoorsound
【原文标准名称】:建筑声学.从建筑构件性能评定建筑物声学性能.第3部分:防室外声音的空气声隔绝
【标准号】:ISO15712-3-2005
【标准状态】:现行
【国别】:国际
【发布日期】:2005-01
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC43
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThisEuropeanStandardspecifiesacalculationmodeltoestimatethesoundinsulationorthesoundpressureleveldifferenceofafacadeorotherexternalsurfaceofabuilding.Thecalculationisbasedonthesoundreductionindexofthedifferentelementsfromwhichthefacadeisconstructedanditincludesdirectandflankingtransmission.ThecalculationgivesresultswhichcorrespondapproximatelytotheresultsfromfieldmeasurementsaccordingtoENISO140-5.Calculationscanbecarriedoutforfrequencybandsorforsinglenumberratings.Thecalculationresultscanbeusedalsoforcalculatingtheindoorsoundpressurelevelduetoforinstanceroadtraffic;thisuseistreatedintheinformativeannexD.Thisdocumentdescribestheprinciplesofthecalculationmodel,liststherelevantquantitiesanddefinesitsapplicationsandrestrictions.Itisintendedforacousticalexpertsandprovidestheframeworkforthedevelopmentofapplicationdocumentsandtoolsforotherusersinthefieldofbuildingconstruction,takingintoaccountlocaicircumstances.Themodelisbasedonexperiencewithpredictionsfordwellings;itcanalsobeusedforothertypesofbuildingsprovidedthedimensionsofconstructionsarenottoodifferentfromthoseindwellings.
【中国标准分类号】:P31
【国际标准分类号】:91_120_20
【页数】:26P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforEvaluationofLargeAreaDensityandBackgroundonOfficeCopiers
【原文标准名称】:办公室复印机大范围浓度和底色评定用测试方法
【标准号】:ASTMF875-1994(2003)e1
【标准状态】:现行
【国别】:
【发布日期】:1994
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:F05.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:办公室设备;复制设备;浓度;试验
【英文主题词】:copierbackground;copierimagedensity;imagequality
【摘要】:Thecopyimagequalityisaffectedbymanyfactors;includingthecopier,supplies,andenvironmentalconditions.Thedensityandbackgroundimagequalityisparticularlysignificantrelativetoaestheticappearance,thevisualimpressionofblackness,andtheabilitytodistinguishinformationfrombackground.Thetesttargetmayalsobeusedtoevaluatethecopierorsupplies.1.1Thistestmethodcoversthedescriptionandmethodofuseforadensityandbackgroundtesttargetforofficecopierimageevaluation.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificprecautionarystatements,seeSection8.
【中国标准分类号】:N47
【国际标准分类号】:37_100_10
【页数】:3P.;A4
【正文语种】: