NF A49-313-1-2003 机械工程与一般工业用无缝圆形钢管.交货技术条件.第1部分:非合金和合金钢管
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来源:标准资料网
【英文标准名称】:Seamlesscircularsteeltubesformechanicalandgeneralengineeringpurposes-Technicaldeliveryconditions-Part1:non-alloyandalloysteeltubes.
【原文标准名称】:机械工程与一般工业用无缝圆形钢管.交货技术条件.第1部分:非合金和合金钢管
【标准号】:NFA49-313-1-2003
【标准状态】:现行
【国别】:法国
【发布日期】:2003-09-01
【实施或试行日期】:2003-09-05
【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】:H48
【国际标准分类号】:77_140_75
【页数】:46P;A4
【正文语种】:其他
【英文标准名称】:StandardTestMethodforpHofAqueousSolutionsWiththeGlassElectrode
【原文标准名称】:带玻璃电极水溶液的pH值测量用标准试验方法
【标准号】:ASTME70-2007
【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】:E15.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:电极;玻璃;玻璃电极;pH值电极;pH值测量;溶剂;测试
【英文主题词】:aqueoussolution;buffer;combinationelectrode;glasselectrode;pH;pHmeter;referenceelectrode
【摘要】:pHis,withinthelimitsdescribedin1.1,anaccuratemeasurementofthehydrogenionconcentrationandthusiswidelyusedforthecharacterizationofaqueoussolutions.pHmeasurementisoneofthemainprocesscontrolvariablesinthechemicalindustryandhasaprominentplaceinpollutioncontrol.1.1ThistestmethodspecifiestheapparatusandproceduresfortheelectrometricmeasurementofpHvaluesofaqueoussolutionswiththeglasselectrode.Itdoesnotdealwiththemannerinwhichthesolutionsareprepared.pHmeasurementsofgoodprecisioncanbemadeinaqueoussolutionscontaininghighconcentrationsofelectrolytesorwater-solubleorganiccompounds,orboth.Itshouldbeunderstood,however,thatpHmeasurementsinsuchsolutionsareonlyasemiquantitativeindicationofhydrogenionconcentrationoractivity.ThemeasuredpHwillyieldanaccurateresultforthesequantitiesonlywhenthecompositionofthemediummatchesapproximatelythatofthestandardreferencesolutions.Ingeneral,thistestmethodwillnotgiveanaccuratemeasureofhydrogenionactivityunlessthepHliesbetween2and12andtheconcentrationofneitherelectrolytesnornonelectrolytesexceeds0.1mol/L(M).1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesinparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G60
【国际标准分类号】:71_040_50
【页数】:6P.;A4
【正文语种】:
Product Code:SAE AMS5586
Title:Nickel Alloy, Corrosion and Heat-Resistant, Welded Tubing, 57Ni - 19.5Cr - 13.5Co - 4.2Mo - 2.9Ti - 1.4Al - 0.006B - 0.08Zr, Consumable Electrode Remelted or Vacuum Induction Melted, Annealed
Issuing Committee:Ams F Corrosion Heat Resistant Alloys Committee
Scope:This specification covers a corrosion and heat-resistant nickel alloy in the form of welded and drawn tubing.
