DIN 6773-4-1977 钢铁材料热处理.热处理件.图样画法及标注.渗碳淬火
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【英文标准名称】:HeatTreatmentofFerrousMetals;Heat-treatedParts;RepresentationandIndicationsinDrawings;Casehardening
【原文标准名称】:钢铁材料热处理.热处理件.图样画法及标注.渗碳淬火
【标准号】:DIN6773-4-1977
【标准状态】:作废
【国别】:德国
【发布日期】:1977-05
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:淬火;定义;制图规范;黑色金属;作标记;材料;材料强度;渗碳;设计;公差;硬度;热处理;表面;图纸
【英文主题词】:hardness;hardening;surfaces;tolerances(measurement);strengthofmaterials;drawings;design;definitions;marking;ferrousmetals;heattreatment;drawingspecifications;materials;carburizing
【摘要】:
【中国标准分类号】:J36;H05
【国际标准分类号】:01_100_30
【页数】:7P;A4
【正文语种】:德语
【英文标准名称】:Acoustics-Noiseemittedbymachineryandequipment-Measurementofemissionsoundpressurelevelsataworkstationandatotherspecifiedpositions-Surveymethodinsitu
【原文标准名称】:声学.机械装置及设备发出的噪声.工作地点和其它试验场所声压级的测量.现场调查法
【标准号】:BSENISO11202-1996
【标准状态】:作废
【国别】:英国
【发布日期】:1996-11-15
【实施或试行日期】:1996-11-15
【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】:再现性;准确度;测量特征;试验设备;试验条件;现场试验;声学测量;操作工位;噪声(环境的);等级(质量);声学;声强
【英文主题词】:Acousticmeasurement;Acoustictesting;Acoustics;Airbornenoise;Definitions;Emission;Emissionmeasurement;Ergonomics;Externalnoise;Fieldtesting;Insitu;Inserts;Instruments;Machinenoise;Machines;Measurement;Measuringenvironment;Measuringincertainity;Measuringinstruments;Measuringtechniques;Methods;Noise;Noiseemissions;Noisemeasurements;Operatingconditions;Operatingstations;Position;Precision;Radiation;Soundintensity;Soundlevels;Soundpressure;Soundpressurelevel;Soundpropagation;Specification(approval);Workingplaces
【摘要】:1GeneralThisInternationalStandardspecifiesamethodformeasuringtheemissionsoundpressurelevelsofmachineryandequipment,ataworkstationandatotherspecifiedpositionsnearby,inasemi-reverberantfield.EmissionsoundpressurelevelaremeasuredasA-weightedand,ifrequired,C-weightedpeak.NOTE1ThecontentsofthisandrelatedInternationalStandardsaresummarizedintable1ofISO11200:1995.Amethodisgivenfordeterminingalocalenvironmentcorrection(subjecttoaspecifiedlimitingmaximumvalue)tobeappliedtothemeasuredsoundpressurelevelsinordertoexcludeatleastpartoftheeffectsofreflectionsfromreflectingsurfacesotherthantheplaneonwhichthemachineryorequipmentisplaced.Thiscorrectionisbasedontheequivalentsoundab-sorptionareaofthetestroom.Aworkstationisoccupiedbyanoperator.Itmaybelocatedinopenspaceintheroomwherethesourceoperates,orinacabfixedtothesource,orinanen-closureremotefromthesource.Oneormorespeci-fiedpositionsmaybelocatedinthevicinityofanattendedorunattendedmachine.Suchpositionsaresometimesreferredtoasbystanderpositions.ThisInternationalStandardspecifiesrequirementsforthesurveygradeofaccuracyonthetestenvironmentandinstrumentation.Instructionsaregivenforthein-stallationandoperationofthemachineundertestandforthechoiceofmicrophonepositionsfortheworkstationandforotherspecifiedpositions.Thepurposeofthemeasurementsistopermitcomparisonoftheperformanceofdifferentunitsofagivenfamilyofmachineryorequipment,underdefinedenviron-mentalconditionsandstandardizedmountingandop-eratingconditions.ThedataobtainedmayalsobeusedforthedeclarationandverificationofemissionsoundpressurelevelsasspecifiedinISO4871.NOTE2Atanygivenpositioninrelationtoaparticularmachine,andforgivenmountingandoperatingconditions,theemissionsoundpressurelevelsdeterminedbythemethodofthisInternationalStandardwillingeneralbelowerthanthedirectlymeasuredsoundpressurelevelsforthesamemachineinthetypicalworkroomwhereitisused.Thisisduetoreverberationandthecontributionsofothermachines.Amethodofcalculatingthesoundpressurelev-elsinthevicinityofamachineoperatingaloneinaworkroomisgiveninISO11690-3.Commonlyobserveddifferencesare1dBto5dB,butinextremecasesthedif-ferencemaybeevengreater.2TypesofnoiseandnoisesourcesThemethodspecifiedinthisInternationalStandardisapplicabletoalltypesofmachinery,bothmovingandstationary,forindoororoutdooruse.Themethodisapplicabletomachinesofallsizes,andtoalltypesofnoiseasdefinedinISO2204andISO12001.3TestenvironmentThemethodisapplicabletoanindoororoutdooren-vironmentwithoneormorereflectingplanespresent,meetingspecifiedrequirements.4SpecifiedpositionsThisInternationalStandardisapplicabletoworkstationsandotherspecifiedpositionswhereemissionsoundpressurelevelsaretobemeasured.Examplesofappropriatepositionswheremeasure-mentsmaybemadeincludethefollowing:a)workstationlocatedinthevicinityofthemachineundertest;thisisthecaseformanyindustrialmachinesanddomesticappliances;b)workstationwithinacabwhichisanintegralpartofthemachineundertest;thisisthecaseformanyindustrialtrucksandearth-movingma-chines;c)workstationwithinapartialortotalenclosure(orbehindascreen)suppliedbythemanufacturerasanintegralpartofthemachineryorequipment;d)workstationpartiallyortotallyenclosedbythemachineundertest;thissituationmaybeen-counteredwithsomelargeindustrialmachines;e)bystanderpositionsoccupiedbyindividualsnotresponsiblefortheoperationofthemachineun-dertest,butwhomaybeinitsimmediatevicini
【中国标准分类号】:Z32
【国际标准分类号】:17_140_20
【页数】:24P;A4
【正文语种】:英语
【英文标准名称】:Plasticspipingsystemsfornon-pressureundergrounddrainageandsewerage.Polyethylene(PE).Specificationsforpipes,fittingsandthesystem
【原文标准名称】:无压力地下排水和排污塑料管道系统.聚乙烯(PE).第1部分:管、管件和系统用规范
【标准号】:BSEN12666-1-2005+A1-2011
【标准状态】:现行
【国别】:英国
【发布日期】:2006-01-26
【实施或试行日期】:2006-01-26
【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】:
【英文主题词】:Bendcouplings;Connectors;Definitions;Diameter;Dimensions;Fitnessforpurpose;Fittings;Flangeconnections;Flangedfittings;Gravity;Heatedtoolwelding;Heatingcoilwelding;Joints;Landdrainageworks;Marking;Materials;Mechanicallinkages;Mechanicalproperties;PE;PEpipes;Physicalproperties;Pipeconnections;Pipes;Pipingsystem;Plasticpipelines;Plasticpipes;Plastictubes;Plastics;Polyethylene;Properties;Quality;Resistanceweldingfittings;Sealingrings;Sewerage;Sewers;Shanks;Singlebranches;Sleeves;Specification(approval);Tolerances(measurement);Underground;Waterpractice
【摘要】:
【中国标准分类号】:Q81
【国际标准分类号】:23_040_01;93_030
【页数】:38P;A4
【正文语种】:英语
