JJG 564-1988 机械定量秤检定规程

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【英文标准名称】:StandardTestMethodforMicroscopicalAnalysisbyReflectedLightandDeterminationofMesophaseinaPitch
【原文标准名称】:沥青中用反射光的显微分析和测定中间相的试验方法
【标准号】:ASTMD4616-1995(2005)
【标准状态】:现行
【国别】:
【发布日期】:1995
【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】:D02.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:屋顶层;屋面油毡;硬沥青(石油产品);显微分析;沥青制品;防水材料;试验;沥青;屋顶;建筑;分析;施工材料
【英文主题词】:cenospheres;mesophase;microscopy;optical;pitch;QI;quinoline
【摘要】:Sometimescoaltarandpetroleumpitchesareheattreatedtherebyformingmesophasespheroids.Themesophasemaybepartiallysolubleinquinolineandcannotbeestimatedbythequinolineinsolubletest(TestMethodD2318).Thistestmethodprovidesfortheidentification,quantitativeestimation,andsizedeterminationofmesophasespheroids.Themesophaseinitiallyformsasspheroidsthatmaycoalescetoformavarietyofasymmetricalshapes.Thesmallestmesophaseparticlethatcanbedetectedwithcertaintyat400x00D7;or500x00D7;magnificationis4x03BC;mindiameter;mesophaseparticlessizeslessthan4x03BC;mshouldbeignored.Ifmesophasemateriallessthan4x03BC;minsizeisofinterest,thenmagnificationsof1000to1800x00D7;shallbeusedandtheresultsshouldbeappropriatelyidentified.Thismethodislimitedtodeterminingminorlevelsofmesophase,thatis,x2264;20%mesophase.1.1Thistestmethodcoverslaboratoryproceduresforthepreparationofgranularandmeltedsamplesformicroscopicanalysisusingreflectedlighttoidentifyandestimatetheamountandsizeofthemesophase.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E43
【国际标准分类号】:91_100_50;91_100_50
【页数】:9P.;A4
【正文语种】:


Product Code:SAE AMS3797
Title:Webbing, Nylon, Integral Locking Slots
Issuing Committee:Ams P Polymeric Materials Committee
Scope: This specification covers nylon webbing with integral locking slots.This webbing has been used typically in construction of parachutes, but usage is not limited to such applications.Nylon webbing with integral locking slots shall be as specified in the applicable detail specification, classified by width and breaking strength. The webbing covered by each detail specification appears as part of the title.
Rationale: This specification covers nylon webbing with integral locking slots.This webbing has been used typically in construction of parachutes, but usage is not limited to such applications.Nylon webbing with integral locking slots shall be as specified in the applicable detail specification, classified by width and breaking strength. The webbing covered by each detail specification appears as part of the title.