ISO 4552-1-1987 铁合金化学分析用样品的取制样第1部分:铬铁、硅铬铁、硅铁、硅锰铁和锰铁
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【英文标准名称】:Ferroalloys;Samplingandsamplepreparationforchemicalanalysis;Part1:Ferrochromium,ferrosilicochromium,ferrosilicon,ferrosilicomanganese,ferromanganese
【原文标准名称】:铁合金化学分析用样品的取制样第1部分:铬铁、硅铬铁、硅铁、硅锰铁和锰铁
【标准号】:ISO4552-1-1987
【标准状态】:现行
【国别】:国际
【发布日期】:1987-12
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC132
【标准类型】:()
【标准水平】:()
【中文主题词】:化学分析;铁类合金;铁合金;试样制备;化学分析和试验;硅铬铁;合金;锰铁;抽样方法;铬铁;硅铁
【英文主题词】:Alloys;Chemicalanalysisandtesting;Ferro-alloys;Ferrochromium;Ferromanganese;Ferrosilicon;Ferrousalloys;Samplingmethods;Specimenpreparation
【摘要】:ThispartofISO4552specifiesthemethodsforsamplingandsamplepreparationforthedeterminationofthechemicalcompositionofaconsignmentofthelistedferroalloys.Forthepurposeofsampling,ferrochromiumissubdividedintonon-crushableandcrushablealloys.
【中国标准分类号】:H04
【国际标准分类号】:77_100
【页数】:7P;A4
【正文语种】:英语
基本信息
| 标准名称： | 航空洗涤汽油 |
| 发布日期： | 1900-01-01 |
| 实施日期： | 1992-05-20 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
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： 石油 石油产品 真空油脂 防锈油脂
【英文标准名称】:StandardTestMethodsforProximateAnalysisofCoalandCokebyMacroThermogravimetricAnalysis
【原文标准名称】:运用总体热重分析法对煤和焦炭的进行相似分析的标准测试方法
【标准号】:ASTMD7582-2009
【标准状态】:现行
【国别】:
【发布日期】:2009
【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】:D05.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:ash;macrothermogravimetricanalysis,macro-TGA;moisture;proximateanalysis;volatilematter
【摘要】:Moisture,asdeterminedbythisinstrumentaltestmethod,isusedforcalculatingotheranalyticalresultstoadrybasisusingproceduresinPracticeD3180.Moisturecanbeusedinconjunctionwiththeair-drymoisturelossdeterminedbyTestMethodD3302todeterminetotalmoistureincoal.Totalmoistureisusedforcalculatingotheranalyticalresultstoanas-receivedbasisusingPracticeD3180.Ashyieldistheresidueremainingafterheatingthecoalandcokesamples(seeNote1).Note18212;Theashobtaineddiffersincompositionandamountfromthemineralconstituentspresentintheoriginalcoal.Combustioncausesanexpulsionofallwater,thelossofcarbondioxidefromcarbonates,theconversionofironpyriteintoironoxidesandsulfuroxides,andotherchemicalreactions.Ashyield,asdeterminedbythistestmethod,candifferfromtheamountofashproducedinfurnaceoperationsorothercombustionsystemsbecausecombustionconditionsinfluencethechemistryandamountofash.Ashyieldisused,(1)asaparameterforevaluatingsamplingproceduresandcoalcleaningprocesses,(2)intheultimateanalysiscalculationofoxygenbydifferenceusingPracticeD3176,(3)incalculationsincludingmaterialbalance,reactivityandyieldsofproductsrelevanttocoalconversionprocessessuchasgasificationandliquefaction,(4)incalculationstoestimatetheloadingonelectrostaticprecipitatorsandontheflyashandbottomashdisposalsystemsaswellaserosionratesonboilersystems.Volatilematteryield,whendeterminedashereindescribed,maybeusedto(1)indicatecokeyieldoncarbonization,(2)providethebasisforpurchasingandselling,or(3)establishcombustioncharacteristics.Fixedcarbonisacalculatedvalue.Itisthedifferencebetween100andthesumofthepercentmoisture,ash,andvolatilematter.Allpercentsshallbeonthesamemoisturereferencebase.Moisture,ash,andvolatilematterarethreeoftheprincipalparametersusedforassessingthequalityofcoal.1.1Theseinstrumentaltestmethodscoverthedeterminationofmoisture,volatilematter,andash,andthecalculationoffixedcarbonintheanalysisofcoalandcokesamplespreparedinaccordancewithPracticeD2013andPracticeD346.1.2Theseinstrumentaltestmethodsarenotapplicabletothermogravimetricanalyzersusingmicrogramsizesamples.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:73_040
【页数】:9P.;A4
【正文语种】:
