【英文标准名称】:TestMethodforDeterminationoftheRelativeContentOfDissolvedDecayProductsinMineralInsulatingOilsbySpectrophotometry
【原文标准名称】:用光谱法测定矿质绝缘油中可溶解的衰减产品相对含量的标准试验方法
【标准号】:ASTMD6802-2002(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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】:D27.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:chemicalstability;dissolveddecayproducts;insulatingoil;oxidationdecay;visiblespectrum;Chemicalstabilizationtesting;Dissolveddecayproducts;Mineralinsulatingoil;Oxidationinduceddefects;Oxidationtesting;Spectrophotometry;Visiblespe
【摘要】:Thecontentofdissolveddecayproductsininsulatingoilsismadeupofavarietyofcompounds,suchasperoxides,aldehydes,ketones,andorganicacids.Eachofthemispartiallyadsorbedonthelargesurfaceofpaperinsulationleadingtotheprematureagingofpowertransformers.Therelativeassessmentofbyproductformation,therefore,canbeusedasanindicatoroftheagingofthemineraloil.1.1Thistestmethodcharacterizesbyspectrophotometrytherelativelevelofdissolveddecayproductsinmineralinsulatingoilsofpetroleumorigin.Whilenewoilisalmosttransparenttoamonochromaticbeamoflightinthevisiblespectrum,theincreasingconcentrationofdissolveddecayproductsshifttheabsorbancecurvetolongerwavelengths.1.2Thistestmethodisapplicabletocomparetheextentofdissolveddecayproductsforoilsinservice.Itcanassesstheeffectivenessofusedorstoredoilpurificationduringthereclamationprocess,aswell.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesandtodeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E38
【国际标准分类号】:71_040_50
【页数】:6P.;A4
【正文语种】:英语


【英文标准名称】:StandardSpecificationforSiltFenceMaterials
【原文标准名称】:淤泥围栏材料的标准规范
【标准号】:ASTMD6461-1999(2007)e2
【标准状态】:现行
【国别】:美国
【发布日期】:1999
【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】:D18.25
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:eotextile;sedimentcontrol;siltfence;Erosioncontrolmaterials/applications--specifications;Fences/fencingmaterials--specifications;Flowandflowrate--water;Nonconcentratedwaterflow;Overlandnonconcentratedwaterflow;Particleanalysis--soil;
【摘要】:1.1Thisspecificationcoversrequirementsandtestmethodsforgeotextilefabricsandassociatedcomponentsusedintemporarysiltfenceapplications.ThisisamaterialpurchasingspecificationbasedonAASHTOM288.1.2Thisspecificationisapplicabletotheuseofageotextileasaverticalpermeableinterceptordesignedtoremovesuspendedsoilfromoverland,nonconcentratedwaterflow.Thefunctionofatemporarysiltfenceistotrapandallowsettlementofsoilparticlesfromsedimentladenwater.Thepurposeistogreatlylimitthetransportoferodedsoilfromtheaconstructionsitebywaterrunoff.1.3Thetestsusedtocharacterizethesiltfenceareintendedtoensuregoodworkmanshipandqualityandarenotnecessarilyadequatefordesignpurposesinviewofthewidevarietyofpossiblesedimentsandperformanceobjectives.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesininch-poundunitsareprovidedforinformationonly.
【中国标准分类号】:P58;W59
【国际标准分类号】:59_080_70
【页数】:3P.;A4
【正文语种】:英语