GB 7717.8-1987 丙烯腈中的总醛含量测定
时间:2024-05-20 22:59:19 来源: 标准资料网 作者：标准资料网 阅读：8021
基本信息
| 标准名称： | 丙烯腈中的总醛含量测定 |
| 中标分类： |
化工 >>
有机化工原料 >>
一般有机化工原料 |
| 替代情况： | 被GB/T 7717.8-1994代替 |
| 发布日期： | 1900-01-01 |
| 实施日期： | 1988-05-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 2页 |
适用范围
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前言
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引用标准
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所属分类： 化工 有机化工原料 一般有机化工原料
【英文标准名称】:StandardPracticesforInfraredMultivariateQuantitativeAnalysis
【原文标准名称】:红外多变量定量分析的标准规程
【标准号】:ASTME1655-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:E13.11
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:材料试验;测量;分光光度法;光谱学;校正;定量分析;分光计;红外线;分析方法
【英文主题词】:infraredanalysis;molecularspectroscopy;multivariateanalysis;quantitativeanalysis
【摘要】:Thesepracticescanbeusedtoestablishthevalidityoftheresultsobtainedbyaninfrared(IR)spectrometeratthetimethecalibrationisdeveloped.Theongoingvalidationofestimatesproducedbyanalysisofunknownsamplesusingthecalibrationmodelshouldbecoveredseparately(seeforexample,PracticeD6122).Thesepracticesareintendedforallusersofinfraredspectroscopy.Near-infraredspectroscopyiswidelyusedforquantitativeanalysis.Manyofthegeneralprinciplesdescribedinthesepracticesrelatetothecommonmodernpracticesofnear-infraredspectroscopicanalysis.Whilesamplingmethodsandinstrumentationmaydiffer,thegeneralcalibrationmethodologiesareequallyapplicabletomid-infraredspectroscopy.Newtechniquesareunderstudythatmayenhancethosediscussedwithinthesepractices.Userswillfindthesepracticestobeapplicabletobasicaspectsofthetechnique,toincludesampleselectionandpreparation,instrumentoperation,anddatainterpretation.Thecalibrationproceduresdefinetherangeoverwhichmeasurementsarevalidanddemonstratewhetherornotthesensitivityandlinearityoftheanalysisoutputsareadequateforprovidingmeaningfulestimatesofthespecificphysicalorchemicalcharacteristicsofthetypesofmaterialsforwhichthecalibrationisdeveloped.1.1Thesepracticescoveraguideforthemultivariatecalibrationofinfraredspectrometersusedindeterminingthephysicalorchemicalcharacteristicsofmaterials.Thesepracticesareapplicabletoanalysesconductedinthenearinfrared(NIR)spectralregion(roughly780to2500nm)throughthemidinfrared(MIR)spectralregion(roughly4000to400cm-1).Note18212;Whilethepracticesdescribedhereindealspecificallywithmid-andnear-infraredanalysis,muchofthemathematicalandproceduraldetailcontainedhereinisalsoapplicableformultivariatequantitativeanalysisdoneusingotherformsofspectroscopy.Theuseriscautionedthattypicalandbestpracticesformultivariatequantitativeanalysisusingotherformsofspectroscopymaydifferfrompracticesdescribedhereinformid-andnear-infraredspectroscopies.1.2ProceduresforcollectingandtreatingdatafordevelopingIRcalibrationsareoutlined.Definitions,terms,andcalibrationtechniquesaredescribed.Criteriaforvalidatingtheperformanceofthecalibrationmodelaredescribed.1.3TheimplementationofthesepracticesrequirethattheIRspectrometerhasbeeninstalledincompliancewiththemanufacturer''sspecifications.Inaddition,itassumesthat,atthetimesofcalibrationandofvalidation,theanalyzerisoperatingattheconditionsspecifiedbythemanufacturer.1.4Thesepracticescovertechniquesthatareroutinelyappliedinthenearandmidinfraredspectralregionsforquantitativeanalysis.Thepracticesoutlinedcoverthegeneralcasesforcoarsesolids,finegroundsolids,andliquids.Alltechniquescoveredrequiretheuseofacomputerfordatacollectionandanalysis.1.5Thesepracticesprovideaquestionnaireagainstwhichmultivariatecalibrationscanbeexaminedtodetermineiftheyconformtotherequirementsdefinedherein.1.6Forsomemultivariatespectroscopicanalyses,interferencesandmatrixeffectsaresufficientlysmallthatitispossibletocalibrateusingmixturesthatcontainsubstantiallyfewerchemicalcomponentsthanthesamplesthatwillultimatelybeanalyzed.Whilethesesurrogatemethodsgenerallymakeuseofthemultivariatemathematicsdescribedherein,theydonotconformtoproceduresdescribedherein,specificallywithrespecttothehandlingofoutliers.Surrogatemethodsmayindicatethattheymakeuseofthemathematicsdescribedherein,buttheyshouldnotclaimtofollowtheproceduresdescribedherein.1.7Thisstandarddoesno......
【中国标准分类号】:G04
【国际标准分类号】:71_040_50
【页数】:29P.;A4
【正文语种】:
【英文标准名称】:Analyticalexpressionfordailysolarprofiles(IEC61725:1997);GermanversionEN61725:1997
【原文标准名称】:每日太阳轮廓的分析表示
【标准号】:EN61725-1997
【标准状态】:现行
【国别】:
【发布日期】:1998-03
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:参考模型;分析的;电气工程;定义;太阳能;阳光;光电器件;太阳辐射;数学计算;排放物;外形;自然采光
【英文主题词】:Analytical;Definition;Discharges;Electricalengineering;Incidentlightradiation;Mathematicalcalculations;Naturallighting;Photovoltaics;Profile;Record;Referencemodel;Solarenergy;Solarradiation;Sunlighting
【摘要】:
【中国标准分类号】:F12
【国际标准分类号】:27_160
【页数】:5P.;A4
【正文语种】:英语