NF C93-411-1983 电子设备用机电元件.按钮开关.分规范

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【英文标准名称】:Electromechanicalcomponentsforelectronicequipments.Pushbuttonswitches.Sectionalspecification.
【原文标准名称】:电子设备用机电元件.按钮开关.分规范
【标准号】:NFC93-411-1983
【标准状态】:作废
【国别】:法国
【发布日期】:1983-12-01
【实施或试行日期】:1983-12-07
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电子设备及元件;验收检验;机械强度;数据表示;代码表示;开关;材料强度;环境试验;质量保证程序;机械试验;质量保证体系;规范;验收试验;鉴定试验;编码(程序设计);合格试验;电气试验;编码(数据转换);电子元部件;数数项;汇编;按钮;软钎焊;表(数据);液密试验;不透水性试验;软钎焊性;控制按钮
【英文主题词】:
【摘要】:
【中国标准分类号】:L22
【国际标准分类号】:31_220_20
【页数】:5P.;A4
【正文语种】:其他


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【英文标准名称】:TestMethodforWaterContentofWater-ReduciblePaintsbyDirectInjectionintoaGasChromatograph
【原文标准名称】:用直接注入式样气相色谱仪法测定水稀释涂料中水含量的试验方法
【标准号】:ASTMD3792-1999
【标准状态】:作废
【国别】:美国
【发布日期】:1999
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:含量测定;涂料;水;覆层;试验;颜色;涂漆
【英文主题词】:colour;painting;water;coatings;testing;paints;determinationofcontent
【摘要】:
【中国标准分类号】:G50
【国际标准分类号】:87_040
【页数】:
【正文语种】:英语


【英文标准名称】:StandardPracticeforDeterminingtheOperationalComparabilityofMeteorologicalMeasurements
【原文标准名称】:气象测量运算可比性测定的标准实施规程
【标准号】:ASTMD4430-2000(2006)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:D22.11
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:空气;气象学
【英文主题词】:atmosphere;functionalprecision;measurementcomparisons;meteorologicalmeasurements
【摘要】:Thispracticeprovidesdataneededforselectionofinstrumentsystemstomeasuremeteorologicalquantitiesandtoprovideanestimateoftheprecisionofmeasurementsmadebysuchsystems.Thispracticeisbasedontheassumptionthattherepeatedmeasurementofameteorologicalquantitybyasensorsystemwillvaryrandomlyaboutthetruevalueplusanunknowablesystematicdifference.Giveninfiniteresolution,thesemeasurementswillhaveaGaussiandistributionaboutthesystematicdifferenceasdefinedbytheCentralLimitTheorem.Ifitisknownordemonstratedthatthisassumptionisinvalidforaparticularquantity,conclusionsbasedonthecharacteristicsofanormaldistributionmustbeavoided.1.1Sensorsystemsusedformakingmeteorologicalmeasurementsmaybetestedforlaboratoryaccuracyinenvironmentalchambersorwindtunnels,butnaturalexposurecannotbefullysimulated.Atmosphericquantitiesarecontinuouslyvariableintimeandspace;therefore,repeatedmeasurementsofthesamequantitiesasrequiredbyPracticeE177todetermineprecisionarenotpossible.Thispracticeprovidesstandardproceduresforexposure,datasampling,andprocessingtobeusedwithtwomeasuringsystemsindeterminingtheiroperationalcomparability(,).1.2Theproceduresprovidedproducemeasurementsamplesthatcanbeusedforstatisticalanalysis.Comparabilityisdefinedintermsofspecifiedstatisticalparameters.OtherstatisticalparametersmaybecomputedbymethodsdescribedinotherASTMstandardsorstatisticshandbooks().1.3Wherethetwomeasuringsystemsareidentical,thatis,samemake,model,andmanufacturer,theoperationalcomparabilityiscalledfunctionalprecision.1.4Meteorologicaldeterminationsfrequentlyrequiresimultaneousmeasurementstoestablishthespatialdistributionofatmosphericquantitiesorperiodicallyrepeatedmeasurementtodeterminethetimedistribution,orboth.Insomecases,anumberofidenticalsystemsmaybeused,butinothersamixtureofinstrumentsystemsmaybeemployed.Theproceduresdescribedhereinareusedtodeterminethevariabilityoflikeorunlikesystemsformakingthesamemeasurement.Thisstandarddoesnotpurporttoaddressthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(Seeformorespecificsafetyprecautionaryinformation.)
【中国标准分类号】:A47
【国际标准分类号】:07_060
【页数】:4P.;A4
【正文语种】: