ISO 2810-2004 色漆与清漆.涂层的自然风化.暴露和评定
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【英文标准名称】:Paintsandvarnishes-Naturalweatheringofcoatings-Exposureandassessment
【原文标准名称】:色漆与清漆.涂层的自然风化.暴露和评定
【标准号】:ISO2810-2004
【标准状态】:现行
【国别】:国际
【发布日期】:2004-07
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC35
【标准类型】:()
【标准水平】:()
【中文主题词】:试验用样板;耐气候老化;试验用图表;心土;尺寸;应力时间;定义;气候;防护覆层;涂漆;涂层材料;清漆;试验涂漆;环境试验;覆层;中等试验;涂料;抗风化能力;抽样方法;耐力;试验报告;老化试验;室外暴露;试验;宏观;解释;材料试验;全球辐射;风化
【英文主题词】:Ageingtests;Climate;Coatingmaterials;Coatings;Definitions;Dimensions;Environmentaltesting;Globalradiation;Intermediatetest;Interpretations;Macro;Materialstesting;Outdoorexposure;Painting;Paints;Protectivecoatings;Resistance;Samplingmethods;Stresstime;Subsoil;Testcharts;Testpainting;Testpanels;Testreports;Testing;Varnishes;Weatherresistance;Weathering;Weatheringresistance
【摘要】:ThisInternationalStandardspecifiestheconditionswhichneedtobetakenintoconsiderationintheselectionofthetypeofnaturalweatheringandthenaturalweatheringproceduretobeusedtodeterminetheresistanceofcoatingsorcoatingsystems(directweatheringorweatheringbehindwindowglass).Naturalweatheringisusedtodeterminetheresistanceofcoatingsorcoatingsystems(denotedinthefollowingtextsimplybycoatings)tothesun'sradiationandtheatmosphere.Specialatmosphericinfluences,e.g.industrialpollution,arenottakenintoaccountinthisInternationalStandard.
【中国标准分类号】:G50
【国际标准分类号】:87_040
【页数】:11P;A4
【正文语种】:英语
【英文标准名称】:Troughedbeltconveyors-Specification
【原文标准名称】:槽形皮带输送机.规范
【标准号】:BS8438-2004
【标准状态】:作废
【国别】:英国
【发布日期】:2004-01-29
【实施或试行日期】:2004-01-29
【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】:设计;输送机;带式输送机;功率(力学);抗拉应力;皮带传动;供料器(物料装卸设备);皮带轮;槽形皮带输送机;力;尺寸;间隙;物料搬运设备
【英文主题词】:Beltconveyors;Beltdrives;Clearances;Conveyors;Design;Dimensions;Force;Materialshandlingequipment;Power(mechanics);Pulleys;Tensilestress;Troughedbeltconveyors
【摘要】:ThisBritishStandardspecifiesthemechanicaldesign,dimensionalrequirementsandmethodsforcalculatingtheoperatingpowerrequirementsfornon-mobiletroughedbeltconveyorsincorporatingcarryingidlers.Thestandardalsospecifiesmethodsforcalculatingtheforcesexertedonthebelt.Thisstandardappliestoconveyorsusingeitherrubberorplasticbelting,withtextilereinforcement(conformingtoBS490-1),carryingloosebulkmaterials,havingamaximumspeedof6m/s.Thisstandarddoesnotcoverthesafeguardingofhazardpoints.BSEN620:2002coversthesafeguardingofhazardpointsonfixedtroughedbeltconveyorsandBSEN618:2002dealswithsafeguardingofhazardpointsonfixedbeltconveyorsthatarebuiltintoorattachedtomachines.Thisstandarddoesnotapplytothefollowingcategories:a)undergroundminingconveyors;b)conveyorshandlingmaterialsthatdonotbehaveasbulksolids.NOTE1AnnexAprovidesguidanceontheinformationtobesuppliedbythepurchaseratthetimeofenquiryand/order.NOTE2PortableandmobileconveyorsarecoveredinBS4531.NOTE3Beltspeedinexcessof6m/smightrequireanalysisofforcesnotconsideredinthisspecification.
【中国标准分类号】:J81
【国际标准分类号】:53_040_10
【页数】:66P.;A4
【正文语种】:英语
【英文标准名称】:StandardGuideforMonitoringofSuspended-SedimentConcentrationinOpenChannelFlowUsingOpticalInstrumentation
【原文标准名称】:利用光学仪器监测明渠流量悬沙浓度的标准指南
【标准号】:ASTMD7512-2009
【标准状态】:现行
【国别】:
【发布日期】:2009
【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】:D19.07
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:continuousmeasurementofSSC;opticalmeasurements;sediment;sedimenttransport;streammonitoring;suspended-sedimentconcentration;suspended-sedimentload;turbidity
【摘要】:Thisguideisgeneralandintendedasaplanningguide.Tosatisfactorilymonitoraspecificsite,aninvestigatormustsometimesdesignspecificinstallationstructuresormodifythosegiveninthisguidetomeettherequirementsofthesiteinquestion.Becauseofthedynamicnatureofthesedimenttransportprocess,theextenttowhichcharacteristicssuchasmassconcentrationandparticle-sizedistributionareaccuratelyrepresentedinthemonitoringprogramdependsonthetypeofequipmentusedandmethodofcollectionoftheSSCsamplesusedtocalibratetheopticalreadings.Sedimentconcentrationishighlyvariableinbothtimeandspace.Numeroussamplesmustbecollectedandanalyzedwithproperequipmentandstandardizedmethodsfortheratingoftheopticalequipmentataparticularsite(seeGuideD4411andPracticeD3977).Allopticalequipmenthaveanupperlimitforvalidreadings,beyondwhichthemeterwillnotreadproperly,commonlyreferredtoasx201C;blackingout.x201D;IfupperrangeofSSCareexpectedtocauseopticalinstrumentblackout,thensomeothermeansshouldbedevised,suchasautomaticpumpingsamplers,tocollectsamplesduringthisperiod.SeeEdwardsandGlysson(1)andGlysson(2)forinformationoncollectionofsuspendedsedimentsamplesusingpumpingsamplers.Itshouldbenotedthatothertechnologies,suchaslasersandacousticdopplers,arealsobeingusedtomonitorSSCcontinuously.Theuserofthisguideshouldrealizethatbecausedifferenttechnologiesanddifferentmodelsofthesametechnologyofturbiditymeterscanproducesignificantlydifferentoutputsforthesameenvironmentalsample,onlyonemanufacturerandmodeloftheturbiditymetercanbeusedtodeveloptherelationshipbetweentheSSCandturbidityreadingsatasite.Ifadifferentmanufactureroradifferentmodeltypeofturbiditymeterisused,anewrelationshipwillneedtobedevelopforthesite.1.1Thisguidecoverstheequipmentandbasicproceduresforinstallation,operation,andcalibrationofopticalequipmentasasurrogateforthecontinuousdeterminationofsuspended-sedimentconcentration(SSC)inopenchannelflow.1.2Thisguideemphasizesgeneralprinciplesfortheapplicationofopticalmeasurementstobeusedtoestimatesuspended-sedimentconcentration(SSC)inwater.Onlyinafewinstancesarestep-by-stepinstructionsgiven.Continuousmonitoringisafield-basedoperation,methodsandequipmentareusuallymodifiedtosuitlocalconditions.Themodificationprocessdependsupontheoperatorskillandjudgment.1.3Thisguidecoverstheuseoftheoutputfromanopticalinstrument,suchasturbidityandsuspended-solidsmeters,torecorddatathatcanbecorrelatedwithsuspended-sedimentconcentration.Itdoesnotcovertheprocessofcollectingdataforcontinuousturbidityrecord,whichwouldrequireadditionalcalibrationoftheturbidityreadingstothemeanturbidityofthemeasurementcrosssection.Forthepurposesofthismethoditisassumedthatthedependentvariablewillbemeancross-sectionalsuspended-sedimentconcentrationdata.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesandtodeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:17_120_20
【页数】:14P.;A4
【正文语种】:
