NF V08-021-1985 食品微生物学.死肠杆菌计数的一般规定.概率计算技术和菌落计数方法
作者:标准资料网 时间:2024-05-25 21:11:45 浏览:9253
来源:标准资料网
【英文标准名称】:MICROBIOLOGYOFFOODPRODUCTS.GENERALGUIDANCEFORTHEENUMERATIONOFENTEROBACTERIACEAEWITHOUTRESUSCITATION.MPNTECHNIQUEANDCOLONYCOUNTTECHNIQUE.
【原文标准名称】:食品微生物学.死肠杆菌计数的一般规定.概率计算技术和菌落计数方法
【标准号】:NFV08-021-1985
【标准状态】:作废
【国别】:法国
【发布日期】:1985-12
【实施或试行日期】:1985-11-20
【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】:微生物;微生物分析;试验结果;食品;细菌计数方法;培养基;试验;肠杆菌科
【英文主题词】:foodproducts;micro-organisms;microorganisms;enterobacteriaceae;microbiologicalanalysis;culturemedia;bacteriacountmethods;testresults;testing
【摘要】:
【中国标准分类号】:C53
【国际标准分类号】:
【页数】:9P;A4
【正文语种】:其他
【英文标准名称】:StandardTestMethodsforChemicalAnalysisofCeramicWhitewareMaterialsUsingWavelengthDispersiveX-RayFluorescenceSpectrometry
【原文标准名称】:使用波长色散X射线荧光光谱法进行白色陶瓷材料化学分析的标准试验方法
【标准号】:ASTMC1605-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:C21.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:1.1Thesetestmethodscoverthedeterminationoftenmajorelements(SiO2,Al2O3,Fe2O3,MgO,CaO,Na2O,K2O,TiO2,P2O5,MnO,andLOIinceramicwhitewaresclaysandmineralsusingwavelengthdispersiveX-rayfluorescencespectrometry(WDXRF).Thesampleisfirstignited,thenfusedwithlithiumtetraborateandtheresultantglassdiscisintroducedintoawavelengthdispersiveX-rayspectrometer.ThediscisirradiatedwithX-raysfromanX-raytube.X-rayphotonsemittedbytheelementsinthesamplesarecountedandconcentrationsdeterminedusingpreviouslypreparedcalibrationstandards.(1)Inadditionto10majorelements,themethodprovidesagravimetricloss-on-ignition.Note1MuchofthetextofthistestmethodisderiveddirectlyfromMajorelementanalysisbywavelengthdispersiveX-rayfluorescencespectrometry,includedinRef(1).1.2Interferences,withanalysisbyWDXRF,mayresultfrommineralogicalorotherstructuraleffects,lineoverlaps,andmatrixeffects.Thestructureofthesample,mineralogicalorotherwise,iseliminatedthroughfusionwithasuitableflux.Fusionofthesamplediminishesmatrixeffectsandproducesastable,flat,homogeneoussampleforpresentationtothespectrometer.Selectingcertaintypesofcrystalmonochromatorseliminatesmanyofthelineoverlapsandmultiorderlineinterferences.Amathematicalcorrectionprocedure(2)isusedtocorrectfortheabsorptionandenhancementmatrixeffects.1.3Concentrationsoftheelementsinclaysandmineralsaredeterminedindependentoftheoxidationstateandarereportedintheoxidationstateinwhichtheymostcommonlyoccurintheearthscrust.1.4Concentrationranges:1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q32
【国际标准分类号】:71_040_50
【页数】:5P.;A4
【正文语种】:
【英文标准名称】:SpecificationforColorandAppearanceRetentionofVariegatedColorPlasticSidingProducts
【原文标准名称】:杂色塑料壁板产品颜色和外观保持性的规范
【标准号】:ANSI/ASTMD7251-2006
【标准状态】:作废
【国别】:美国
【发布日期】:2006
【实施或试行日期】:2006-05-30
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:外观;颜色保持性;塑料制品
【英文主题词】:Appearance;Colourretention;Plasticsproducts
【摘要】:Thisspecificationestablishesrequirementsandtestmethodsforthecolorandappearanceretentionofvariegatedcolorplasticsidingproducts.Colorretentiontestingprovidesamethodforestimatingtheacceptabilityofcolorchangeinasidingproductoveraperiodofyearsofservice.Characterizationofcolorandappearanceforvariegatedcolorsiscomplicatedbythepresenceofmultiplecolorsinarandompattern.Theprocedureisbasedonusingatemplatetoreference6spotsforcolormeasurement.Methodsofindicatingcompliancewiththisspecificationareprovided.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note1ThereisnoknownISOequivalenttothisstandard.
【中国标准分类号】:G31
【国际标准分类号】:01_070;83_080_01
【页数】:
【正文语种】:英语
