ASTM F1661-2009 测定薄膜开关接触弹力的标准试验方法

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【英文标准名称】:StandardTestMethodforDeterminingtheContactBounceTimeofaMembraneSwitch
【原文标准名称】:测定薄膜开关接触弹力的标准试验方法
【标准号】:ASTMF1661-2009
【标准状态】:现行
【国别】:美国
【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】:F01.18
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:contactbounce;membraneswitch;Contactbouncetime;Electronicmaterials/applications;Membraneswitches
【摘要】:Contactbouncetimeisessentialtomanufacturersanduserswhendesigninginterfacecircuitrybecauseitspecifiesthetimedelaynecessaryinthedecodercircuitrytoavoidanyfalsesignalscausedbycontactbounce.Allowingfortimedelaymakestheswitchoperationconsiderablymorereliable.1.1Thistestmethodcoversthedeterminationofthecontactbouncetimeofamembraneswitch.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:K31
【国际标准分类号】:29_120_40
【页数】:4P.;A4
【正文语种】:英语


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【英文标准名称】:Concrete.Specification,performance,productionandconformity
【原文标准名称】:混凝土.规范、性能、产生及符合性
【标准号】:BSEN206-1-2001
【标准状态】:现行
【国别】:英国
【发布日期】:2001-02-15
【实施或试行日期】:2001-02-15
【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】:混凝土拌合料;等级(质量);集料;水泥与混凝土技术;验证;养护;合格;交付;质量控制;生产;施工材料;抗压强度;组分;混凝土;性能试验;检验;性能
【英文主题词】:Aggregates;Applications;Beams;Bendingstrength;Bendingstress;Bendingtensilestrength;Boards;Breakingstrength;Buildingsites;Cementandconcretetechnology;Cementmortar;Cements;Classification;Classificationsystems;Climate;Components;Composition;Compressivestrength;Concretemixes;Concretestructures;Concretes;Conformity;Construction;Constructionmaterials;Constructionoperations;Constructionworks;Constructions;Curing(concrete);Cuttingconditions;Definitions;Delivery;Design;Dew;Dimensioning;Directionofworks;Drawings;Equipment;Erecting(constructionoperation);Formchanges;Formwork;Fracture;Frost;Girders;Grades(quality);Impact;Inspection;Loading;Mathematicalcalculations;Measurement;Measuringtechniques;Membersundercompression;Mortars;Performance;Performancetesting;Personnel;Persons;Prefabricatedparts;Pressure;Processing;Production;Properties;Quality;Qualitycontrol;Qualitytesting;Ready-mixedconcrete;Reinforcedconcrete;Reinforcedconcretestructures;Reinforcement;Reinforcingsteels;Ribbedslabfloors;Roofing;Safetyagainstbuckling;Specification(approval);Stays;Strengthofmaterials;Structuralengineering;Structuralmembers;Surveillance(approval);T-beams;Temperature;Testing;Training;Verification;Water;Workmanship
【摘要】:ThisEuropeanStandardappliestoconcreteforstructurescastinsitu,precaststructures,andstructuralprecastproductsforbuildingsandcivilengineeringstructures.Theconcretemaybemixedonsite,ready-mixedconcreteorproducedinaplantforprecastconcreteproducts.Thisstandardspecifiesrequirementsfor:—theconstituentmaterialsofconcrete;—thepropertiesoffreshandhardenedconcreteandtheirverification;—thelimitationsforconcretecomposition;—thespecificationofconcrete;—thedeliveryoffreshconcrete;—theproductioncontrolprocedures;—theconformitycriteriaandevaluationofconformity.ThisEuropeanStandardappliestoconcretecompactedtoretainnoappreciableamountofentrappedairotherthanentrainedair.Thisstandardappliestonormal-weight,heavy-weightandlight-weightconcrete.OtherEuropeanStandardsforspecificproductse.g.precastproductsorforprocesseswithinthefieldofthescopeofthisstandardmayrequireorpermitdeviationsfromthisstandard.AdditionalordifferentrequirementsmaybegiveninfurtherpartsofthisstandardorinotherspecificEuropeanStandards,forexample:—concretetobeusedinroadsandothertraffickedareas;—concreteusingothermaterials(e.g.fibres)orconstituentmaterialsnotcoveredby5.1;—concretewithanupperaggregatesizeof4mmorless(mortar);—specialtechnologies(e.g.sprayedconcrete);—concretefordisposalofliquidsandgaseouswaste;—concreteforvesselsforstorageofpollutingsubstances;—concreteformassivestructures(e.g.dams);—drymixedconcrete.NOTEAslongasthesestandardsarenotavailable,provisionsvalidintheplaceofuseoftheconcretemayapply.EuropeanStandardsareunderpreparationfor:—concretetobeusedinroadsandothertraffickedareas;—sprayedconcrete.Thisstandarddoesnotapplyto:—aeratedconcrete;—foamedconcrete;—concretewithopenstructure("no-fines"concrete);—concretewithdensitylessthan800kg/m3;—refractoryconcrete.Thisstandarddoesnotcoverhealthandsafetyrequirementsfortheprotectionofworkersduringproductionanddeliveryofconcrete.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:74P.;A4
【正文语种】:英语


【英文标准名称】:Hand-heldmotor-operatedelectrictools-Safety-Part2-19:Particularrequirementsforjointers(IEC60745-2-19:2005,modified);GermanversionEN60745-2-19:2005
【原文标准名称】:手持式电动工具.安全.第2-19部分:接缝器的特殊要求(IEC60745-2-19-2005,修订).德文版本EN60745-2-19-2005
【标准号】:EN60745-2-19-2005
【标准状态】:现行
【国别】:
【发布日期】:2006-03
【实施或试行日期】:2006-03-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:手持式电动工具.安全.第2-19部分:接缝器的特殊要求(IEC60745-2-19-2005,修订).德文版本EN60745-2-19-2005
【中国标准分类号】:K64
【国际标准分类号】:25_140_20
【页数】:14P.;A4
【正文语种】:英语