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SAE AS4059 Aerospace Fluid Power - Cleanliness Classification for Hydraulic Fluids

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Product Code:SAE AS4059
Title:Aerospace Fluid Power - Cleanliness Classification for Hydraulic Fluids
Issuing Committee:A-6c1 Contamination And Filtration Committee
Scope:This SAE Aerospace Standard (AS) defines cleanliness classes for particulate contamination of hydraulic fluids and includes methods of reporting related data (Appendix A). The contamination classes selected are an extension ofbased on the widely accepted NAS 1638 cleanliness classes. Conversion from NAS 1638 cleanliness class specifications to AS4059 class specifications is defined. Comparison of the NAS 1638 classes to AS4059 classes is defined and the differences explained (Appendix B). This document provides versatility in identifying a maximum class in multiple size ranges, total number of particles larger than a specific size or designating a class for each size. NAS 1638 classes based on weight of particles are not applicable to either of these classes and are not included.
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【英文标准名称】:Ironores;determinationofsiliconcontent;part2:reducedmolybdosilicatespectrophotometricmethod
【原文标准名称】:铁矿石硅含量的测定第2部分:还原硅钼酸盐分光光度法
【标准号】:ISO2598-2-1992
【标准状态】:现行
【国别】:国际
【发布日期】:1992-12
【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/TC102
【标准类型】:()
【标准水平】:()
【中文主题词】:含量测定;化学分析和试验;铁矿石;硅含量;分光光度法
【英文主题词】:Chemicalanalysisandtesting;Determinationofcontent;Ironores;Siliconcontent;Spectrophotometry
【摘要】:Themethodisbasedondecompositionofthetestportionbyfusionwithsodiumtetraborateandtreatmentwithdilutenitricacid,additionofammoniummolybdatetoconvertsilicateintoamolybdatosilicatecomplex,reductiontomolybdenumbluewithascorbicacid,andspectrophotometricmeasurementoftheabsorbanceofthemolybdenumbluecomplexatawavelengthofapproximately600nm.Appliestosiliconcontentsbetween0,1%and5,0%innaturalironores,ironoreconcentratesandagglomerates,includingsinterproducts,especiallyfororescontainingfluorine.
【中国标准分类号】:D31
【国际标准分类号】:73_060_10
【页数】:8P;A4
【正文语种】:英语


【英文标准名称】:Paperandboard-Paperandboardintendedtocomeintocontactwithfoodstuffs-Determinationofmercuryinanaqueousextract
【原文标准名称】:纸和纸板.与食物接触的纸和纸板.水萃取物中汞含量的测定
【标准号】:BSEN12497-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-12-12
【实施或试行日期】:2005-12-12
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:水提出物;水解萃取法;水解萃取物;原子吸收光谱测定法;原子吸收分光光度测定法;纸板;化学分析和试验;测定;含量测定;可食纸;萃取;萃取分析法;浸渍物;食品包装;食品;重金属;接触食品的材料;材料试验;汞;分子吸收分光光度测定法;包装件;纸;毒物;有毒物质
【英文主题词】:Aqueousextract;Aqueousextractionmethods;Aqueousextracts;Atomicabsorptionspectrometry;Atomicabsorptionspectrophotometry;Board(paper);Chemicalanalysisandtesting;Determination;Determinationofcontent;Ediblepaper;Extraction;Extractionmethodsofanalysis;Extracts;Foodpackages;Foodproducts;Heavymetals;Materialsincontactwithfood;Materialstesting;Mercury;Molecularabsorptionspectrophotometry;Packages;Paper;Toxic;Toxicmaterials
【摘要】:ThisEuropeanStandardisoneinaseriesofstandardsforthedeterminationofheavymetalsinanaqueousextractofpaperandpaperboardintendedforcontactwithfood.ThisEuropeanStandardspecifiesthetestmethodforthedeterminationofmercuryinanaqueousextract.Itisapplicabletopaperandboardwithextractablemercurycontentexceeding0,06mgperkg.NOTE1Theabovelimitofdeterminationis5timesbelowtheactuallimitexistingtodayorproposedinEurope.NOTE2Mercurycontentlevelsbelow0,06mgperkgcanbemeasuredbythisEuropeanStandard,ifverysensitiveequipmentisavailableandifallotherlaboratoryconditionsfulfiltherequirementsfortraceelementanalysis.
【中国标准分类号】:Y30
【国际标准分类号】:67_250;85_060
【页数】:12P;A4
【正文语种】:英语