ASTM D731-2010 热固模塑粉的模塑指数的标准试验方法
时间:2024-05-14 05:46:53 来源: 标准资料网 作者：标准资料网 阅读：8800
【英文标准名称】:StandardTestMethodforMoldingIndexofThermosettingMoldingPowder
【原文标准名称】:热固模塑粉的模塑指数的标准试验方法
【标准号】:ASTMD731-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D20.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:moldingindex;plasticity;thermosets;Moldingindex;Thermosettingmaterials/properties;Thermosettingplastics
【摘要】:Thistestmethodprovidesaguideforevaluatingthemoldabilityofthermosettingmoldingpowders.Thistestmethoddoesnotnecessarilydenotethatthemoldingbehaviorofdifferentmaterialswillbealikeandtrialsmaybenecessarytoestablishtheappropriatemoldingindexforeachmaterialinquestion.Thesensitivityofthistestdiminisheswhenthemoldingpressureisdecreasedbelow5.3MPa(764psi),sopressureslowerthanthisarenotordinarilyrecommended.Thisisduetothefrictionofmovingpartsandtheinsensitivityofthepressureswitchactuatingthetimerattheselowpressures.1.1Thistestmethodcoversthemeasurementofthemoldingindex(plasticity)ofthermosettingplasticsranginginflowfromsofttostiffbyselectionofappropriatemoldingpressureswithintherangefrom3.7to36.5MPa(530to5300psi).1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note18212;ThereisnoknownISOequivalenttothistestmethod.
【中国标准分类号】:G33
【国际标准分类号】:83_080_10
【页数】:4P.;A4
【正文语种】:英语
【英文标准名称】:Fibreopticinterconnectingdevicesandpassivecomponents-Basictestandmeasurementprocedures-Examinationsandmeasurements-Polarizationdependenceofreturnlossofasingle-modefibreopticcomponent
【原文标准名称】:光纤互联装置和无源部件.基本试验和测量程序.检验和测量.由单模光纤元件回波损耗产生的偏振相依性
【标准号】:BSEN61300-3-19-1997
【标准状态】:现行
【国别】:英国
【发布日期】:1997-07-15
【实施或试行日期】:1997-07-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:光波导;试验;影响;测量技术;回程损耗;紧固件;量规
【英文主题词】:Checkgauge;Components;Fasteners;Influences;Measuringtechniques;Monomodefibres;Opticalwaveguides;Returnloss;Testing
【摘要】:ThispartofIEC1300describesthetesttodeterminethedependenceofreturnlossofasinglemodefibreopticcomponentonthestateofpolarization(SOP)ofthelightpassingthroughthecomponent.Returnlossistheabsolutevalueoftheratioindecibelsofthetotalreflectedpowertotheincidentpowerfromanopticalfibrelinkorsystem.SincetheSOPoflightinacomponentisgenerallyindeterminateandinfactoftenchangingasafunctionoftime,acomponentthatexhibitspolarizationdependencewillhavevaryingreturnlossinasystem.Thisprocedurecanbeappliedtoanysinglemodepassivecomponentandinterconnectingdevice,includingattenuators,isolators,branchingdevices,switches,connectors,andsplices,ifapplicable.
【中国标准分类号】:L23
【国际标准分类号】:33_180_20
【页数】:16P.;A4
【正文语种】:英语
【英文标准名称】:Decorativelaminatedplasticssheetveneeredboardsandpanels
【原文标准名称】:装饰叠层塑料面胶合板和镶板
【标准号】:BS4965-1999
【标准状态】:现行
【国别】:英国
【发布日期】:1999-09-15
【实施或试行日期】:1999-09-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThisBritishStandardspecifiesrequirementsfordecorativelaminatedsheet,basedonthermosettingresins,bondedtoasubstrate,generallyforinterioruse.Itspecifiestheparticularcombinationsofdecorativelaminateandsubstrate,generallyforinterioruse.Itspecifiestheparticularcombinationsofdecorativelaminate,substrateandadhesivenecessarytomeetthefollowingserviceconditions:a)innormalhumidityconditionswithoccasionalwetting;b)inhighhumidityconditionswithoccasionalwetting;c)inprolongedhighhumidityconditionswithfrequentwetting;d)where,inadditiontotheabove,theboardorpanelisrequiredtomeetstatutoryfireregulations.Thetypeandgradeoflaminaterequiredtomeetthedemandslikelytobemadeonitssurfacearealsospecified.NOTEThisstandardisnotapplicabletoboardsandpanelsmanufacturedbydirectlyapplyinguncuredfilmstothesubstrateandperformingcureandbondintheprocess,norboardsandpanelsfacedwithotherdecorativefilmssuchasthermoplastics.
【中国标准分类号】:B70
【国际标准分类号】:83_140_20
【页数】:16P;A4
【正文语种】:英语