您的位置: 标准下载 » 国际标准 » EN 欧洲标准 »

EN 12491-2001 降落滑翔设备.紧急降落伞.安全性要求和试验方法

作者:标准资料网 时间:2024-05-22 01:08:21  浏览:8881   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:Paraglidersequipment-Emergencyparachutes-Safetyrequirementsandtestmethods;GermanversionEN12491:2001
【原文标准名称】:降落滑翔设备.紧急降落伞.安全性要求和试验方法
【标准号】:EN12491-2001
【标准状态】:现行
【国别】:
【发布日期】:2001-07
【实施或试行日期】:2001-07-01
【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】:材料强度;降落伞;游乐设备;强度试验;载荷试验;营救设备;法兰;带条;设备;救生设备;体育器材;试验设备;定义;紧急降落伞;安全工程;耐力;安全要求;文献工作;规范(验收);作标记;滑翔伞;使用说明;试验
【英文主题词】:Definition;Definitions;Documentations;Emergencyparachute;Equipment;Flange;Instructionsforuse;Loadingtests;Marking;Parachutes;Paragliders;Recreationalequipment;Rescueequipment;Resistance;Safetyengineering;Safetyrequirements;Specification(approval);Sportsequipment;Straps;Strengthofmaterials;Strengthtests;Testequipment;Testing
【摘要】:
【中国标准分类号】:V44
【国际标准分类号】:97_220_40
【页数】:14P.;A4
【正文语种】:英语


下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodforPhotoelasticDeterminationofResidualStressinaTransparentGlassMatrixUsingaPolarizingMicroscopeandOpticalRetardationCompensationProcedures
【原文标准名称】:用偏光显微镜和光学延迟补偿方法在透明玻璃基质中测定光弹性残余应力的标准试验方法
【标准号】:ASTMC978-2004(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:2004
【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】:C14.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Glassenamelapplications;Graduatedquartzwedgeopticalretardationprocedure;Ionexchangematerials/applications;Lightexposure;Retardation;Matrixdata/programs;Microscopicexamination;Opticalmaterials/properties/tests;Opticalretardation;Phot
【摘要】:Thequalityandperformanceofanarticleofglasswaremaybeaffectednotonlybythepresenceofresidualstressesduetoheattreatmentabovethestrainpointintheware,butalsobyadditionalresidualstressescausedbydifferencesinthermalexpansionbetweentheglasssubstrate,andeithercord,fired-onvitreousenamel,orACLdecoration.Theeffectsofthoseadditionalresidualcord,enamel,orACLstressesandtheresultingperformanceofsuchitemsmaybeevaluatedbyperformancetestprocedures.SuchevaluationsofenamelorACLstressesmayalsobeaccomplishedthroughthedeterminationofappropriatephysicalpropertiesofthedecorationandmatrixglass,orbyanalyticalmethods.Thistestmethodoffersadirectandconvenientmeansofdeterminingthemagnitudesandspatialdistributionsofresidualstresssystemsinglasssubstrates.Thetestmethodissimple,convenient,andquantitativelyaccurate.ThistestmethodisusefulinevaluatingthedegreeofcompatibilitybetweenthecoefficientofthermalexpansionofanenamelorACLappliedtoaglasssubstrate.1.1Thistestmethodcoversthedeterminationofresidualstressesinatransparentglassmatrixbymeansofapolarizingmicroscopeusingnullorretardationcompensationprocedures.1.2Suchresidualstressdeterminationsareofimportanceinevaluatingthenatureanddegreeofresidualstressespresentinglassmatrixesduetocord,orthedegreeoffit,orsuitabilityofaparticularcombinationofglassmatrixandenamel,orappliedcolorlabel(ACL).1.3TheretardationcompensationmethodofopticallydeterminingandevaluatingenamelorACLresidualstresssystemsoffersdistinctadvantagesovermethodsrequiringphysicalpropertymeasurementsorwareperformancetestsduetoitssimplicity,reproducibility,andprecision.1.4Limitations8212;Thistestmethodisbasedonthestress-opticalretardationcompensationprinciple,andisthereforeapplicableonlytotransparentglasssubstrates,andnottoopaqueglasssystems.1.5Duetothepossibilityofadditionalresidualstressesproducedbyionexchangebetweenglassesofdifferentcompositions,someuncertaintymaybeintroducedinthevalueofthestressopticalcoefficientinthepointofinterestduetoalackofaccurateknowledgeofchemicalcompositionintheareasofinterest.1.6Thistestmethodisquantitativelyapplicabletoandvalidonlyforthoseapplicationswheresuchsignificantionexchangeisnotafactor,andstressopticalcoefficientsareknownordeterminable.1.7Theextentoftheionexchangeprocess,andhencethemagnitudesoftheresidualstressesproducedduetoionexchangewilldependontheexchangeprocessparameters.Theresidualstressdeterminationsmadeonsystemsinwhichionexchangehasoccurredshouldbeinterpretedwiththosedependenciesinmind.1.8ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.9Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q30
【国际标准分类号】:81_040_10
【页数】:9P.;A4
【正文语种】:英语


【英文标准名称】:StandardSpecificationforFully-FormulatedPropylene-Glycol-BaseEngineCoolantforHeavy-DutyEngines
【原文标准名称】:重型发动机全调配丙二醇基发动机冷却剂的标准规范
【标准号】:ASTMD6211a-1998
【标准状态】:作废
【国别】:美国
【发布日期】:1998
【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】:全调配重型发动机用冷却剂;补充冷却剂添加维护剂量;机动车工程;冷却剂;成穴;丙二醇
【英文主题词】:propyleneglycol;fully-formulatedheavy-dutyenginecoolant;supplementalcoolantadditivemaintenancedose;cavitation;coolants;automotiveengineering
【摘要】:
【中国标准分类号】:J90
【国际标准分类号】:71_100_45
【页数】:3P;A4
【正文语种】:英语