IEEE 147-1979 波导元件术语的定义
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【英文标准名称】:Definitionsoftermsforwaveguidecomponents
【原文标准名称】:波导元件术语的定义
【标准号】:IEEE147-1979
【标准状态】:作废
【国别】:美国
【发布日期】:1979
【实施或试行日期】:
【发布单位】:美国电气电子工程师学会(IEEE)
【起草单位】:IEEE
【标准类型】:()
【标准水平】:()
【中文主题词】:波导元件;波导;定义;定义;电缆;电子工程;术语
【英文主题词】:cables;terminology;electronicengineering;waveguidecomponents;definition;waveguides;definitions
【摘要】:
【中国标准分类号】:L26
【国际标准分类号】:01_040_33;33_120_10
【页数】:7P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforDeterminingAerobicBiodegradationofPlasticMaterialsUnderControlledCompostingConditions
【原文标准名称】:在受控合成条件下测定塑料材料需氧的生物降解的标准试验方法
【标准号】:ASTMD5338-1998(2003)
【标准状态】:现行
【国别】:
【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(US-ASTM)
【起草单位】:D20.96
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:降解能力;生物降解能力;塑料;试验;污染控制
【英文主题词】:aerobicbiodegradation;biodegradation;composting;plastics
【摘要】:Biodegradationofaplasticwithinacompostingunitisanimportantphenomenonbecauseitwillaffectthedecompositionofothermaterialsenclosedbytheplasticandtheresultingqualityandappearanceofthecompostedmaterial.Biodegradationofplasticswillalsoallowthesafedisposaloftheseplasticsthroughsolid-wastecompostingplants.Thisprocedurehasbeendevelopedtopermitthedeterminationoftherateanddegreeofaerobicbiodegradabilityofplasticproductswhenplacedinacontrolledcompostingprocess.Limitations8212;Becausethereisawidevariationintheconstructionandoperationofcompostingsystemsandbecauseregulatoryrequirementsforcompostingsystemsvary,thisprocedureisnotintendedtosimulatetheenvironmentofanyparticularcompostingsystem.However,itisexpectedtoresembletheenvironmentofacompostingprocessoperatedunderoptimumconditions.Morespecifically,theprocedureisintendedtocreateastandardlaboratoryenvironmentthatwillpermitarapidandreproducibledeterminationoftheaerobicbiodegradabilityundercontrolledcompostingconditions.1.1Thistestmethoddeterminesthedegreeandrateofaerobicbiodegradationofplasticmaterialsonexposuretoacontrolled-compostingenvironmentunderlaboratoryconditions.Thistestmethodisdesignedtoyieldreproducibleandrepeatabletestresultsundercontrolledconditionsthatresemblecompostingconditions.Thetestsubstancesareexposedtoaninoculumthatisderivedfromcompostfrommunicipalsolidwaste.Theaerobiccompostingtakesplaceinanenvironmentwheretemperature,aerationandhumidityarecloselymonitoredandcontrolled.1.2Thistestmethodisdesignedtoyieldapercentageofconversionofcarboninthesampletocarbondioxide.Therateofbiodegradationismonitoredaswell.1.3Thistestmethodisdesignedtobeapplicabletoallplasticmaterialsthatarenotinhibitorytothemicroorganismspresentinaerobiccompostingpiles.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardstatementsaregiveninSection8.1.6ThistestmethodisequivalenttoISO14852.
【中国标准分类号】:G31
【国际标准分类号】:
【页数】:6P.;A4
【正文语种】:
【英文标准名称】:StandardTestMethodforEvaluationofCorrosivenessofDieselEngineOilat135°C
【原文标准名称】:135℃时柴油机油腐蚀性评价的标准试验方法
【标准号】:ASTMD6594-2004
【标准状态】:作废
【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(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:试验方法;石油工业;润滑油
【英文主题词】:testmethods;oilindustries;lubricatingoils
【摘要】:
【中国标准分类号】:E34
【国际标准分类号】:75_100
【页数】:8P;A4
【正文语种】:英语