Designation:E1070−17StandardTestMethodforDeterminationofPhosphorusinIronOresbyPhospho-Molybdenum-BlueSpectrophotometry1ThisstandardisissuedunderthefixeddesignationE1070;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofphospho-rusinironores,concentrates,andagglomeratesintherangefrom0.005%to1.0%phosphorus.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3ThistestmethodhasbeenevaluatedinaccordancewithPracticeE1601andGuideE1763.Unlessotherwisenotedintheprecisionandbiassection,thelowerlimitinthescopeofeachmethodspecifiesthelowestanalytecontentthatmaybeanalyzedwithacceptableerror(definedasanominal5%riskofobtaininga50%orlargerrelativedifferenceinresultsonthesametestsampleintwolaboratories).1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1193SpecificationforReagentWaterE29PracticeforUsingSignificantDigitsinTestDatatoDetermineConformancewithSpecificationsE50PracticesforApparatus,Reagents,andSafetyConsid-erationsforChemicalAnalysisofMetals,Ores,andRelatedMaterialsE60PracticeforAnalysisofMetals,Ores,andRelatedMaterialsbySpectrophotometryE135TerminologyRelatingtoAnalyticalChemistryforMetals,Ores,andRelatedMaterialsE877PracticeforSamplingandSamplePreparationo...
