基本信息
| 标准名称： | 塑料挤出硬管辅机 |
| 中标分类： |
化工 >>
化工机械与设备 >>
橡胶、塑料用机械 |
| 替代情况： | 替代JB 2627-79;被JB/T 2627-2008代替 |
| 发布部门： | 大连塑料机械所 |
| 发布日期： | 1991-07-22 |
| 实施日期： | 1992-07-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 2008-11-01 |
| 归口单位： | 全国橡胶塑料机标准化技术委员会 |
| 出版日期： | 1900-01-01 |
| 页数： | 6页 |
| 批文号： | 机电科标[1991]1220号 |
适用范围
本标准规定了塑料挤出硬辅机的基本参数、技术要求、试验方法、检验规则及标志、包装、运输、贮存。
前言
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目录
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引用标准
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所属分类： 化工 化工机械与设备 橡胶 塑料用机械
【英文标准名称】:StandardGuideforIdentificationandQuantitationofOrganicCompoundsinWaterbyCombinedGasChromatographyandElectronImpactMassSpectrometry
【原文标准名称】:用气相色谱与电子冲击光谱方法鉴别和定量测量水中有机化合物的标准实施规程
【标准号】:ASTMD4128-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:D19.06
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:色谱法;组件;识别;有机的;工艺;光谱测定法;水
【英文主题词】:gaschromatography;GC-MS;massspectrometry;organiccompounds
【摘要】:Withthecommonoccurrenceinwateroforganiccompounds,someofwhicharetoxic,itisoftennecessarytoidentifythespecificcompoundspresentandtodeterminetheconcentration.1.1Thisguidecoverstheidentificationandquantitationoforganiccompoundsbygaschromatography/massspectrometry(GC-MS)(electronimpact)thatarepresentorextractedfromwaterandarecapableofpassingthroughagaschromatographwithoutalteration.Theguideisintendedprimarilyforsolutionsforwhich1ngormoreofanycomponentofinterestcanbeintroducedontoagaschromatographiccolumn.Thisguidehastheadvantageofprovidingtentativeidentificationsofvolatileandsemi-volatileorganics,butisrestrictedto(a)compoundsforwhichreferencespectracanbeobtainedand(b)compoundsthatcanbeseparatedbygaschromatography(GC).Theserestrictionsareimposedontheguide,butarenotalimitationofthetechnique.Theguideiswrittenfor,butnotrestrictedto,analysisusingautomateddataacquisitionandhandling.1.2GuidelineshavebeenincludedforquantitationusingASTMTestMethodsD3871,D3973,andotherGC-MSvolatile/semivolatileproceduresusedforenvironmentalanalysis.Adetectionamountof1ngcanonlybeconsideredapproximate.Theactualdetectionlimitsforeachcomponentmustbedeterminedineachlaboratory.Actualdetectionamountswillvarywiththecomplexityofthematrix,thekindandconditionoftheGC-MSsystem,thesamplepreparationtechniquechosen,andtheapplicationofcleanuptechniquestothesampleextract,ifany.Lowerlevelsofdetectioncanbeachievedusingmodernsensitiveinstrumentsorwithselectedionmonitoring(SIM).Todeterminetheinterlaboratorydetectionestimate(IDE)andtheinterlaboratoryquantitationestimate(IQE),followPracticesD6091andD6512.1.3Theguideisapplicabletotheidentificationofmanyorganicconstituentsofnaturalandtreatedwaters.Itincludesallmodesofsampleintroduction,includinginjectionoforganicextracts,directaqueousinjection,andpurgeandtraptechniques.1.4Theguideisapplicabletoeitherpackedorcapillarycolumngaschromatography,includingwide-borecapillarycolumns.Becauseoftheirgreatlyenhancedresolution,capillarycolumnsarestronglyrecommended.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_30
【页数】:8P.;A4
【正文语种】: