【英文标准名称】:StandardTestMethodsforWaterVaporContentofElectricalInsulatingGasesbyMeasurementofDewPoint
【原文标准名称】:用露点法测定电绝缘气体中水蒸汽含量的试验方法
【标准号】:ASTMD2029-1997(2003)
【标准状态】:现行
【国别】:
【发布日期】:1997
【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】:D27.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:电气工程;气体;露点;测量;含量测定;电绝缘;蒸汽;试验;绝缘
【英文主题词】:adiabaticexpansion;aluminumoxide;chilledmirror;condensation;dewpoint;electricalinsulatinggas;fog;hygrometer;moisturecontent;SF6;siliconoxide;watervaporcontent
【摘要】:1.1Thesetestmethodsdescribethedeterminationofthewatervaporcontentofelectricalinsulatinggasesbydirectorindirectmeasurementofthedewpointandthecalculationofthewatervaporcontent.1.2Thefollowingfourtestmethodsareprovided:1.2.1MethodAdescribestheautomaticchilledmirrormethodformeasurementofdewpointaslowas-73176;C(-99176;F).1.2.2MethodBdescribesthemanualchilledmirrorordewcupmethodformeasurementofdewpointaslowas-73716;C(-99176;F).1.2.3MethodCdescribestheadiabaticexpansionmethodformeasurementofdewpointaslowas-62176;C(-80176;F).1.2.4MethodDdescribesthecapacitancemethodformeasurementofdewpointaslowas-110176;C(-166176;F).Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificwarnings,see8.1.1,9.2,10.1.2and10.2.5.
【中国标准分类号】:K15
【国际标准分类号】:
【页数】:6P.;A4
【正文语种】:
【英文标准名称】:StandardTestMethodforEvaluatingtheShearStrengthofAdhesiveBondsinLaminatedWoodProductsatElevatedTemperatures
【原文标准名称】:升温时评定层压板制品中胶粘剂剪切强度的标准试验方法
【标准号】:ASTMD7247-2007ae1
【标准状态】:现行
【国别】:美国
【发布日期】:2007
【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】:D14.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:bonded;bondline;laminated;residualshearstrengthratio;Adhesive-bondedlaminates;Adhesiveshearstrength;Adhesives(wood);Laminates(wood);Strengthvalues(wood)
【摘要】:AdiscussionoftheissuesandlimitationsassociatedwiththemeasurementofstrengthpropertiesofadhesivebondsinshearbycompressionloadingisfoundinTestMethodD905.Whilevariouscombinationsoftesttemperatureandheatexposuredurationcanbeused,theprovisionsspecifiedin7.2.4shallbebasedontheunderstandingthattheobjectiveofthistestmethodistoevaluateadhesivebondperformancejustbeforewoodbeginstoburnandtheelevatedtemperatureisselectedtobeslightlybelowtheunpilotedignitiontemperatureforwoodwhentakenintoaccountthespecificproductanditsend-useapplications.Whenusingthistestmethod,considerationshallbegiventotheuniqueproductionconditions,suchaswoodmoisturecontent,appliedspreadrate,presspressure,andcuringtemperatureoftheadhesive.1.1Thisstandarddescribesatestmethodforevaluatingthecomparativeshearstrengthofaplanaradhesivebondatbothambientandelevatedtemperaturesrelativetotheperformanceofsolidwoodunderthesameconditions.ThetestmethodisbasedonthebreakingloadafterthespecimenisexposedtoeitherambientoraconstantelevatedtemperatureforaspecifieddurationasdescribedinSection7.Thisstandarddoesnotprecludethedevelopmentandimplementationofothermethodsthatprovideequivalentperformancemeetingtheintentofthismethod.1.2ThistestmethodisintendedfortheevaluationofadhesivesthatcanbeusedtoassembletestspecimensinaccordancewithTestMethodD905.Theevaluationofothertypesofadhesives,suchasthebindersystemsusedforstrand-basedproducts,isbeyondthescopeofthistestmethod.1.3Thistestmethodisintendedfortheevaluationofadhesivesasacomponentoflaminatedwoodproductsatelevatedtemperatures.Theevaluationoffireperformanceonfire-ratedlaminatedwoodproductsorassembliesisbeyondthescopeofthistestmethod.1.4WhileitispreferabletousesolidwoodspecimensasdescribedinSection6asthecontrol,structuralcompositelumberproductsasdefinedinSpecificationD5456shallbepermittedforuseprovidedtheyarematchedwiththebondedspecimensinaccordancewithSection6andtheignitiontemperatureisnotsignificantlylowerthansolidwoodofthesamespecies.1.5Theexactformulationofadhesivesuppliedtothemanufactureroflaminatedwoodproductsshallbeevaluated.Modificationstotheadhesiveformulationrequireaseparateevaluationunlessapprovedbythemanufacturerofthelaminatedwoodproduct,qualifiedagency,andcodeevaluationagency.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,suchasthefirehazard,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G38
【国际标准分类号】:83_180
【页数】:6P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 卧柄水平安装铰链压紧器 |
| 中标分类： |
航空、航天 >>
航空器与航天器零部件 >>
机械配件、构件 |
| 发布日期： | 1996-09-13 |
| 实施日期： | 1997-01-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 8页 |
适用范围
没有内容
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类： 航空 航天 航空器与航天器零部件 机械配件 构件