MH/T 3011.4-2006 民用航空器维修 地面安全 第4部分:民用航空器的顶升

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【英文标准名称】:Mechanicalvibration-Hand-heldandhand-guidedmachinery-Principlesforevaluationofvibrationemission(ISO20643:2005);EnglishversionofDINENISO20643:2008-09
【原文标准名称】:机械振动.手持式和手控式机械.振动传导的评估原则
【标准号】:DINENISO20643-2008
【标准状态】:作废
【国别】:德国
【发布日期】:2008-09
【实施或试行日期】:2008-09-01
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:声学;接触表面;定义;排放;人类工效学;一般条件;抓斗;抓取器;手-臂体系;手柄轴;手柄;操作;实验室试验;机床;机器;作标记;测量;测量仪器;测量技术;机械工程;步进控制系统;便携的;轻便机床;评定;翼梁;规范(验收);驾驶控制装置;测试;工具;振动;振动影响(对人体);振动工程;振动强度;振动测量;抗震试验;振动试验
【英文主题词】:Acoustics;Contactingsurfaces;Definition;Definitions;Emission;Ergonomics;Generalconditions;Grabs;Graspingdevices;Hand-armsystems;Handleshafts;Handles;Handling;Laboratorytesting;Machinetools;Machines;Marking;Measurement;Measuringinstruments;Measuringtechniques;Mechanicalengineering;Pedestrian-controlledsystems;Portable;Portablemachinetools;Ratings;Safety;Safetyofmachinery;Spars;Specification(approval);Steeringcontroldevices;Testing;Tools;Vibration;Vibrationeffects(humanbody);Vibrationengineering;Vibrationintensity;Vibrationmeasurement;Vibrationresistancetests;Vibrationtesting
【摘要】:Thisdocumentprovidesthebasisforthedraftingofvibrationtestcodesforhand-heldandhand-guidedpower-drivenmachinery.Itspecifiesthedeterminationofhand-transmittedvibrationemissionintermsoffrequency-weightedroot-mean-square(r.m.s.)accelerationduringtypetesting.Formachineswherevibrationtestcodesdonotexist,itmayalsobeusedfordeterminationofemissionvaluesandcontainssufficientguidancefordesigninganappropriatetest.NOTEVibrationtestcodesbasedonthisdocumentshoulddefinemeasuringprocedureswhichprovidecontrolled,repeatableandreproducibleresultswhichare,asfaraspossible,inagreementwiththevibrationvaluesmeasuredatthemachine-handcontactsurfacesunderrealworkingconditionsandforwhichtheuncertaintiesofmeasurementarequantified.Thisdocumentisapplicabletohand-heldpowertools(e.g.chippinghammers,sanders),hand-guidedpoweredmachines(e.g.lawnmowers,single-axletractors,vibratoryrollers)andothertypesofpoweredmachinesfittedwithhandles,guidingbeamsorsimilarmeansofcontrol.Itisapplicabletomachineryofallpowersources(electrical,hydraulic,pneumatic,internalcombustionengine,etc.).QItdoesnotapplytofixedmachineryinwhichthevibrationistransmittedtothehandsoftheuserthroughtheworkpiece.Thisdocumentisnotapplicabletovibrationtransmittedfromsteeringwheelsorcontrolleversofmobilemachinerywheretheoperator'spositionisonthemachine,seeEN1032.Itisrestrictedtotranslationalvibrationmeasuredinthreeorthogonaldirectionsatthehand-machineinterface.Thisdocumentshouldbeappliedwithcautiontomachinesproducingsingleandrepetitiveshockswithafrequencyofoccurrencelowerthan5Hz.Forsuchmachines,itisnotknownwhetherfrequency-weightedroot-mean-squareaccelerationvaluesarerelatedtotheriskstohealthandadditionalmeasurementsmayberequired.WhendevelopingvibrationtestcodesforsuchmachinestheinformationinCENISO/TS15694shouldbeconsidered.ThisdocumentisnotapplicabletovibrationtestcodespublishedbeforethedateofpublicationofthisdocumentbyCENand,whenusedastestcode,tohand-heldandhand-guidedmachinerymanufacturedbeforethatdate.Thisdocumentdoesnotpresentlimitsorrecommendedvibrationvalues.Itdoesnotgiveanyguidanceorrecommendationsfordeterminationofhumanexposuretovibrationattheworkplace.Forsuchinformation,referenceismadetoENISO5349-1andENISO5349-2.
【中国标准分类号】:J04;Z32
【国际标准分类号】:13_160
【页数】:24P.;A4
【正文语种】:英语


【英文标准名称】:TestMethodsforCarboxylContentofCellulose
【原文标准名称】:纤维素羧基含量的测试方法
【标准号】:ASTMD1926-1989
【标准状态】:作废
【国别】:美国
【发布日期】:1989
【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】:羧基;纤维素;含量测定;试验;涂料
【英文主题词】:testing;cellulose;paints;determinationofcontent;carboxyl
【摘要】:
【中国标准分类号】:Y31
【国际标准分类号】:85_040
【页数】:4P;A4
【正文语种】:英语