ASTM D 1527-1999 丙烯腈-丁二稀-苯乙稀共聚物塑料管标准规范.表40和80
时间:2024-05-16 01:07:06 来源: 标准资料网 作者：标准资料网 阅读：8283
【英文标准名称】:StandardSpecificationforAcrylonitrile-Butadiene-Styrene(ABS)PlasticPipe,Schedules40and80
【原文标准名称】:丙烯腈-丁二稀-苯乙稀共聚物塑料管标准规范.表40和80
【标准号】:ASTMD1527-1999
【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(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:丁二烯;丙烯腈;苯乙烯;丙烯腈-丁二烯-苯乙烯共聚物;管;抗爆制动系统;塑料;塑料制品;建筑;尺寸;塑料管
【英文主题词】:ABS;Acrylonitrile;Acrylonitrilebutadienestyrene;Butadiene;Construction;Dimensions;Pipes;Plasticpipes;Plastics;Plasticsproducts;Styrene
【摘要】:
【中国标准分类号】:G33
【国际标准分类号】:23_040_20
【页数】:8P;A4
【正文语种】:英语
【英文标准名称】:Zincforgalvanizingpurposes.Volumetricdeterminationoftin.
【原文标准名称】:电镀用锌.锡的容积法测定
【标准号】:NFA06-832-1973
【标准状态】:现行
【国别】:法国
【发布日期】:1973-04-01
【实施或试行日期】:
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:H13
【国际标准分类号】:77_120_60;25_220_40
【页数】:4P;A4
【正文语种】:其他
【英文标准名称】:StandardTestMethodforAcidNumberofPetroleumProductsbyPotentiometricTitration
【原文标准名称】:用电位滴定法测定石油产品酸值的标准试验方法
【标准号】:ASTMD664-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D02.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:酸值;润滑剂;石油产品;电势分析法;电位测量法;测试
【英文主题词】:acidnumber;lubricants;petroleumproducts;potentiometric;strongacidnumber;titration
【摘要】:Newandusedpetroleumproductsmaycontainacidicconstituentsthatarepresentasadditivesorasdegradationproductsformedduringservice,suchasoxidationproducts.Therelativeamountofthesematerialscanbedeterminedbytitratingwithbases.Theacidnumberisameasureofthisamountofacidicsubstanceintheoil,alwaysundertheconditionsofthetest.Theacidnumberisusedasaguideinthequalitycontroloflubricatingoilformulations.Itisalsosometimesusedasameasureoflubricantdegradationinservice.Anycondemninglimitsmustbeempiricallyestablished.Sinceavarietyofoxidationproductscontributetotheacidnumberandtheorganicacidsvarywidelyincorrosionproperties,thetestmethodcannotbeusedtopredictcorrosivenessofoilunderserviceconditions.Nogeneralcorrelationisknownbetweenacidnumberandthecorrosivetendencyofoilstowardmetals.1.1Thistestmethodcoversproceduresforthedeterminationofacidicconstituentsinpetroleumproductsandlubricantssolubleornearlysolubleinmixturesoftolueneandpropan-2-ol.Itisapplicableforthedeterminationofacidswhosedissociationconstantsinwaterarelargerthan10-9;extremelyweakacidswhosedissociationconstantsaresmallerthan10-9donotinterfere.Saltsreactiftheirhydrolysisconstantsarelargerthan10-9.Therangeofacidnumbersincludedintheprecisionstatementis0.1mg/gKOHto150mg/gKOH.Note1Innewandusedoils,theconstituentsthatmaybeconsideredtohaveacidiccharacteristicsincludeorganicandinorganicacids,esters,phenoliccompounds,lactones,resins,saltsofheavymetals,saltsofammoniaandotherweakbases,acidsaltsofpolybasicacids,andadditionagentssuchasinhibitorsanddetergents.1.2Thetestmethodmaybeusedtoindicaterelativechangesthatoccurinoilduringuseunderoxidizingconditionsregardlessofthecolororotherpropertiesoftheresultingoil.Althoughthetitrationismadeunderdefiniteequilibriumconditions,thetestmethodisnotintendedtomeasureanabsoluteacidicpropertythatcanbeusedtopredictperformanceofoilunderserviceconditions.Nogeneralrelationshipbetweenbearingcorrosionandacidnumberisknown.Note2TheacidnumberobtainedbythisstandardmayormaynotbenumericallythesameasthatobtainedinaccordancewithTestMethodsD974andD3339.Therehasnotbeenanyattempttocorrelatethismethodwithothernon-titrationmethods.Note3AfewlaboratorieshavemadetheobservationthatthereisadifferenceinTestMethodD664resultswhenaqueousversusnonaqueousbuffersareused.1.3hevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E30
【国际标准分类号】:75_080;75_080;75_080;75_080;75_080
【页数】:8P.;A4
【正文语种】: