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ASTM D3955-2004(2009) 电气绝缘清漆的标准规范

作者:标准资料网 时间:2024-05-19 02:15:41  浏览:9543   来源:标准资料网
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【英文标准名称】:StandardSpecificationforElectricalInsulatingVarnishes
【原文标准名称】:电气绝缘清漆的标准规范
【标准号】:ASTMD3955-2004(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】:D09.01
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:varnish,air-dry;varnish,electrical;varnish,silicone;varnish,solventcontaining;varnish,thixotropic;varnish,watercontaining;Electricalcoils/windings;Electricalinsulatingmaterials--specifications;Electricalinsulatingvarnishes--specificat
【摘要】:1.1Thisspecificationcoversthetestsandvaluesforelectricalinsulatingvarnishes,assupplied,whicharesuitablefortheimpregnationandtreatmentofelectricalcoilsandwindingsappliedbydipprocess.1.2Varnishes,flexibleorrigid,includedinthisspecificationare:GradeDAx2014;Air-dryGradeDOx2014;Organicsolventcontaining,baking,GradeDMx2014;Reactivediluentcontaining,GradeDSx2014;Silicone,GradeDWx2014;Watercontaining,andGradeDTx2014;Thixotropic.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.Note18212;ThisspecificationresemblesIEC60455intitleonly.Thecontentissignificantlydifferent.
【中国标准分类号】:K15
【国际标准分类号】:
【页数】:4P.;A4
【正文语种】:英语


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基本信息
标准名称:装有无扩口内锥管嘴的1组钢丝编织软管
中标分类: 航空、航天 >> 航空器与航天器零部件 >> 管件、卡箍、密封件
发布日期:1994-06-01
实施日期:1994-12-01
首发日期:1900-01-01
作废日期:1900-01-01
出版日期:1900-01-01
页数:1页
适用范围

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所属分类: 航空 航天 航空器与航天器零部件 管件 卡箍 密封件
【英文标准名称】:StandardPracticeforTransferStandardsforReflectanceFactorforNear-InfraredInstrumentsUsingHemisphericalGeometry
【原文标准名称】:半球形几何结构的近红外线仪器反射系数传送标准的标准实施规程
【标准号】:ASTME1791-1996(2008)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1996
【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】:E13.11
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:hemisphericalopticalmeasurementsystem;integratingsphere;materialsstandards;reflectanceandreflectivity;transferstandards;Geometricanalysis;Hemisphericalgeometry;Infrared(IR)analysis--metals/alloys;Integratingspherereflectometer;Near-
【摘要】:Mostcommercialreflectometersandspectrophotometerswithreflectancecapabilitymeasurerelativereflectance.Theinstrumentreadingistheratioofthemeasuredradiationreflectedfromthereferencespecimentothemeasuredradiationreflectedbythetestspecimen.Thatratioisdependentonspecificinstrumentparameters.Nationalstandardizinglaboratoriesandsomeresearchlaboratoriesmeasurereflectanceoninstrumentscalibratedfrombasicprinciples,therebyestablishingascaleofabsolutereflectanceasdescribedinCIEPublicationNo.44(5).Thesemeasurementsaresufficientlydifficultandofprohibitivecostthattheyareusuallylefttolaboratoriesthatspecializeinthem.Astandardthathasbeenmeasuredonanabsolutescalecouldbeusedtotransferthatscaletoareflectometer.Whilesuchproceduresexist,theconstraintsplacedonthemechanicalpropertiesrestrictthesuitabilityofsomeoftheopticalproperties,especiallythosepropertiesrelatedtothegeometricdistributionofreflectedradiation.Thus,reflectancefactorstandardsthataresufficientlyruggedorcleanabletouseaspermanenttransferstandards,withtheexceptionofthesinteredPTFEstandards,departconsiderablyfromtheperfectdiffuserinthegeometricdistributionofreflectedradiation.Thegeometricdistributionofreflectedradiancefromsuchstandardsissufficientlydiffusethatsuchastandardcanprovideadependablecalibrationofadirectional-hemisphericalorcertaindirectional-directionalreflectometers.Althoughpressedpowderstandardsaresubjecttocontaminationandbreakage,thereflectancefactorofpressedpowdercanbesufficientlyreproduciblefromspecimentospecimenfromagivenlotofpowdertoallowtheassignmentofabsolutereflectancefactorvaluestoallofthepowderinalot.SinteredPTFEmaterialsexhibitsufficientreproducibilityfromwithinthesamespecimenafterresurfacingorcleaningthespecimentoallowtheassignmentofabsolutereflectancefactorvalues.PreparationofpackedpowderreflectancestandardsiscoveredinPracticeE259.ThispracticedescribesthespectralandphysicalpropertiesofthesematerialsandofthesinteredPTFEmaterials.1.1ThispracticecoversproceduresforthepreparationanduseofacceptabletransferstandardsforNIRspectrophotometers.ProceduresforcalibratingthereflectancefactorofmaterialsonanabsolutebasisarecontainedinCIEPublicationNo.44(9).BoththepressedpowdersamplesandthesinteredPTFEmaterialsareusedastransferstandardsforsuchcalibrationsbecausetheyhaveverystablereflectancefactorsthatarenearlyconstantwithwavelengthandbecausethedistributionoffluxresemblescloselythatfromtheperfectreflectingdiffuser.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N53
【国际标准分类号】:37_020
【页数】:4P.;A4
【正文语种】:英语



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