YB(T) 47-1986 55Q轻轨坯
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来源:标准资料网
基本信息
标准名称: | 55Q轻轨坯 |
中标分类: |
冶金 >>
钢铁产品 >>
钢锭、钢坯 |
发布日期: | |
实施日期: | 1987-01-12 |
首发日期: | |
作废日期: | |
出版日期: | |
页数: | 1页 |
适用范围
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前言
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目录
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引用标准
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所属分类: 冶金 钢铁产品 钢锭 钢坯
【英文标准名称】:Chemicalsusedfortreatmentofwaterintendedforhumanconsumption-Trisodiumorthophosphate.
【原文标准名称】:人类生活用水处理用化学制品.正磷酸三钠
【标准号】:NFT94-353-2005
【标准状态】:现行
【国别】:法国
【发布日期】:2005-07-01
【实施或试行日期】:2005-07-05
【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】:G77
【国际标准分类号】:71_100_80
【页数】:19P;A4
【正文语种】:其他
【英文标准名称】:StandardTestMethodforDeterminationofAsphaltenes(HeptaneInsolubles)inCrudePetroleumandPetroleumProducts
【原文标准名称】:原油和石油产品中沥青质(庚烷不溶物)测定的标准试验方法
【标准号】:ASTMD6560-2000(2005)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:D02.14
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:asphaltenes;bitumen;crudepetroleum;dieselfuel;gasoil;heptaneinsolubleresidues;lubricatingoil;residualfueloils
【摘要】:Asphaltenesaretheorganicmoleculesofhighestmolecularmassandcarbon-hydrogenrationormallyoccurringincrudepetroleumandpetroleumproductscontainingresidualmaterial.Theymaygiveproblemsduringstorageandhandlingifthesuspensionofasphaltenemoleculesisdisturbedthroughexcessstressorincompatibility.Theyarealsothelastmoleculesinaproducttocombustcompletely,andthusmaybeoneindicatorofblacksmokepropensity.Theircompositionnormallyincludesadisproportionatelyhighquantityofthesulfur,nitrogen,andmetalspresentinthecrudepetroleumorpetroleumproduct.1.1Thistestmethodcoversaprocedureforthedeterminationoftheheptaneinsolubleasphaltenecontentofgasoil,dieselfuel,residualfueloils,lubricatingoil,bitumen,andcrudepetroleumthathasbeentoppedtoanoiltemperatureof260716;C(see).1.2Theprecisionisapplicabletovaluesbetween0.50and30.0%m/m.Valuesoutsidethisrangemaystillbevalidbutmaynotgivethesameprecisionvalues.1.3Oilscontainingadditivesmaygiveerroneousresults.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.5Thisannexcoversaprocedureforthepreparationofacrudepetroleumresidue(toppedtoanoiltemperatureof260C)suitableforthedeterminationofasphaltenecontent(see).
【中国标准分类号】:E43
【国际标准分类号】:75_080
【页数】:5P.;A4
【正文语种】: