BS ISO 3846-2008 液体比重测定法.用矩形宽顶堰的明渠流量测量
作者:标准资料网 时间:2024-05-20 21:51:31 浏览:8108
来源:标准资料网
【英文标准名称】:Hydrometry-Openchannelflowmeasurementusingrectangularbroad-crestedweirs
【原文标准名称】:液体比重测定法.用矩形宽顶堰的明渠流量测量
【标准号】:BSISO3846-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2008-03-31
【实施或试行日期】:2008-03-31
【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】:明渠流量;流量计量;流量测量;水槽流量;斜槽;液体比重测定法;液体流量;明渠;规格;堰;堰(测量)
【英文主题词】:Channelflow;Flowmeasurement;Flowmeasurements;Flumeflow;Flumes;Hydrometry;Liquidflow;Openchannels;Specifications;Weirs;Weirs(measurement)
【摘要】:ThisInternationalStandardlaysdownrequirementsfortheuseofrectangularbroad-crestedweirsfortheaccuratemeasurementofflowofclearwaterinopenchannelsunderfreeflowconditions.
【中国标准分类号】:N12
【国际标准分类号】:17_120_20
【页数】:36P.;A4
【正文语种】:英语
【英文标准名称】:Aerospaceseries-Technicaldrawings-Representationofpartsmadeofcompositematerials-Generalrules
【原文标准名称】:航空航天系列.技术制图.复合材料部件表示法.总则
【标准号】:BSEN4408-1-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-10-31
【实施或试行日期】:2005-10-31
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:技术图;工程图;航空运输工程;叠层板材;符号;复合材料;作标记
【英文主题词】:
【摘要】:Thisstandardspecifiesthegeneralrulesfortherepresentationofpartsmadeofcompositematerials,intechnicaldrawings.Itappliestoaerospacestructuresusingcompositesmaterials,andtheirapplicationswhenthisstandardisspecified.
【中国标准分类号】:V04
【国际标准分类号】:01_100_99;49_020
【页数】:12P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforMeasurementofCorrosionSitesinNickelPlusChromiumorCopperPlusNickelPlusChromiumElectroplatedSurfaceswithDouble-BeamInterferenceMicroscope
【原文标准名称】:双束干涉显微镜测量镍+铬或铜+镍+铬电镀表面腐蚀部位的标准试验方法
【标准号】:ASTMB651-1983(2010)
【标准状态】:现行
【国别】:
【发布日期】:1983
【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】:B08.08.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:copper-nickel-chromium-electrodepositedcoatings;corrosion-electrodepositedcoatings;double-beaminterferencemicroscopy;electroplatedcoatings;electroplatedcoatings-chromium;electroplatedcoatings-nickel;microscopicexamination-metallic/inor
【摘要】:Differentelectroplatingsystemscanbecorrodedunderthesameconditionsforthesamelengthoftime.Differencesintheaveragevaluesoftheradiusorhalf-widthorofpenetrationintoanunderlyingmetallayeraresignificantmeasuresoftherelativecorrosionresistanceofthesystems.Thus,ifthepitradiiaresubstantiallyhigheronsampleswithagivenelectroplatingsystem,whencomparedtoothersystems,atendencyforearlierfailureoftheformerbyformationofvisiblepitsisindicated.Ifpenetrationintothesemi-brightnickellayerissubstantiallyhigher,atendencyforearlierfailurebycorrosionofbasismetalisevident.1.1Thistestmethodprovidesameansformeasuringtheaveragedimensionsandnumberofcorrosionsitesinanelectroplateddecorativenickelpluschromiumorcopperplusnickelpluschromiumcoatingonsteelafterthecoatinghasbeensubjectedtocorrosiontests.Thistestmethodisusefulforcomparingtherelativecorrosionresistancesofdifferentelectroplatingsystemsandforcomparingtherelativecorrosivitiesofdifferentcorrosiveenvironments.Thenumbersandsizesofcorrosionsitesarerelatedtodeteriorationofappearance.Penetrationoftheelectroplatedcoatingsleadstoappearanceofbasismetalcorrosionproducts.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:77_060
【页数】:3P.;A4
【正文语种】:
