ISO 5440-1978 工业用六氟硅酸钠磷酸盐含量的测定钒钼酸盐分光光度法
时间:2024-05-16 01:15:44 来源: 标准资料网 作者：标准资料网 阅读：8729
【英文标准名称】:Sodiumhexafluorosilicateforindustrialuse;Determinationofphosphatecontent;Molybdovanadatespectrophotometricmethod
【原文标准名称】:工业用六氟硅酸钠磷酸盐含量的测定钒钼酸盐分光光度法
【标准号】:ISO5440-1978
【标准状态】:现行
【国别】:国际
【发布日期】:1978-10
【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/TC47
【标准类型】:()
【标准水平】:()
【中文主题词】:连接;化学分析和试验;氟硅酸盐;正磷酸盐;磷酸盐;含量测定;分光光度法;钠
【英文主题词】:Chemicalanalysisandtesting;Connections;Determinationofcontent;Fluorosilicates;Orthophosphates;Phosphates;Sodium;Spectrophotometry
【摘要】:Applicabletoproductshavingcontents,expressedasphosphoruspentoxide,of0.005%(m/m)to0.05%(m/m).TheresiduefromthedeterminationofthelossofmassaccordingtoISO5444isusedtopreparethetestsample.Dissolutionindilutehydrochloricacidandnitricacidsolutions.Formationoftheyellowmolybdovanadateandspectrophotometricmeasurementatawavelengthofabout420nm.Calculationofthecontentfromthemeasuredabsorbance.
【中国标准分类号】:G10
【国际标准分类号】:71_060_50
【页数】:3P.;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforSalt-AcceleratedOutdoorCosmeticCorrosionTestingofOrganicCoatingsonAutomotiveSheetSteel
【原文标准名称】:机动车薄钢板上有机涂层的盐加速户外表面腐蚀试验的标准实施规程
【标准号】:ASTMD6675-2001(2006)
【标准状态】:现行
【国别】:
【发布日期】:2001
【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】:D01.27
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:atmospherictesting;corrosion;exposuretests-exterior
【摘要】:Testsofthetypedescribedinthispracticemaybeusedtoevaluatethecorrosionresistanceoforganiccoatingsonmetalproductsexposedtohighlysaltyenvironments,suchasareassubjectedtodeicingsaltsorcoastalareas.Exposureconditionsarecomplexandchangeable.Importantfactorsincludeclimate,timeofyear,presenceofpollution,andsoforth.Generallyitisdifficult,ifnotimpossible,todefineormeasurepreciselyallthefactorsthatinfluencedegradation.Repeatedexposuretestingduringdifferentseasonsandoveraperiodofatleasttwoyearsisrequiredtoobtainresultsrepresentativeofanygivenlocation.Controlspecimensmustalwaysbeusedbecausethisisacomparativetest.1.1Thispracticeisdesignedtoassistprocedurestobefollowedwhenconductingoutdoorexposurestoevaluatecosmeticcorrosionthatmightoccurinsteelpanelscoveredwithanorganiccoatingthathasbeendamaged.TheoutdoorexposuresdescribedarebasedonPracticeG7andincludeperiodicwettingofthetestspecimenswithasaltsolution.1.2Themethodsofpreparingtestspecimensandtheparticularexposurerequirementsofmaterialsarebeyondthescopeofthispractice.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29;G50
【国际标准分类号】:43_040_60
【页数】:3P.;A4
【正文语种】:
【英文标准名称】:StandardTestMethodforNitrogen-andPhosphorus-ContainingPesticidesinWaterbyGasChromatographywithaNitrogen-PhosphorusDetector
【原文标准名称】:用氮磷检测器通过气相色谱法测定水中含氮磷杀虫剂标准试验方法
【标准号】:ASTMD5475-1993
【标准状态】:现行
【国别】:美国
【发布日期】:1993
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:含杀虫剂;磷检测器;带氮气相色谱法;试验;水;磷;饮用水;气相色谱法;农药;氮
【英文主题词】:water;nitrogen;containingpesticides;phosphorusdetector;bygaschromatographywithnitrogen;pesticides;phosphorus;test;drinkingwater;gaschromatography
【摘要】:
【中国标准分类号】:Z16
【国际标准分类号】:13_060_40
【页数】:
【正文语种】:英语