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PLEASENOTICETHATONLYEUROPEANCOMMUNITY’SLEGISLATIONPUBLISHEDINTHEPAPEREDITIONSOFTHEOFFICIALJOURNALOFTHEEUROPEANCOMMUNITIESISDEEMEDAUTHENTICWHENPREPARINGTHISDOCUMENT,CAREHASBEENTAKENTOENSURECORRECTNESSOFTHETEXT;NEVERTHELESSPOSSIBILITYOFERRORSCANNOTBECOMPLETELYEXCLUDED,SODIFFERENCESMAYEXISTBETWEENTHISVERSIONANDTHEONEAGREEDANDPUBLISHEDINTHEPAPEREDITIONOFTHEOFFICIALJOURNALINCASEOFDOUBTTHEREADERISADVISEDTOCONSULTTHEOFFICIALJOURNALTHISMETHODCANBEFOUNDINDIR92/69/EECOJL383AACOMPLETELISTOFANNEXVTESTINGMETHODSANDTHECORRESPONDINGOJCANBEDOWNLOADEDFROMAPREVIOUSPAGEINTHISSITEA3RELATIVEDENSITY1METHODTHEMETHODSDESCRIBEDAREBASEDONTHEOECDTESTGUIDELINE1THEFUNDAMENTALPRINCIPLESAREGIVENINREFERENCE211INTRODUCTIONTHEMETHODSFORDETERMININGRELATIVEDENSITYDESCRIBEDAREAPPLICABLETOSOLIDANDTOLIQUIDSUBSTANCES,WITHOUTANYRESTRICTIONINRESPECTTOTHEIRDEGREEOFPURITYTHEVARIOUSMETHODSTOBEUSEDARELISTEDINTABLE112DEFINITIONSANDUNITSTHERELATIVEDENSITY204DOFSOLIDSORLIQUIDSISTHERATIOBETWEENTHEMASSOFAVOLUMEOFSUBSTANCETOBEEXAMINED,DETERMINEDAT20C,ANDTHEMASSOFTHESAMEVOLUMEOFWATER,DETERMINEDAT4CTHERELATIVEDENSITYHASNODIMENSIONTHEDENSITY,Ρ,OFASUBSTANCEISTHEQUOTIENTOFTHEMASS,M,ANDITSVOLUME,VTHEDENSITY,Ρ,ISGIVEN,INSIUNITS,INKG/M313REFERENCESUBSTANCES13REFERENCESUBSTANCESDONOTNEEDTOBEEMPLOYEDINALLCASESWHENINVESTIGATINGANEWSUBSTANCETHEYSHOULDPRIMARILYSERVETOCHECKTHEPERFORMANCEOFTHEMETHODFROMTIMETOTIMEANDTOALLOWCOMPARISONWITHRESULTSFROMOTHERMETHODS14PRINCIPLEOFTHEMETHODSFOURCLASSESOFMETHODSAREUSED141BUOYANCYMETHODS1411HYDROMETERFORLIQUIDSUBSTANCESSUFFICIENTLYACCURATEANDQUICKDETERMINATIONSOFDENSITYMAYBEOBTAINEDBYTHEFLOATINGHYDROMETERS,WHICHALLOWTHEDENSITYOFALIQUIDTOBEDEDUCEDFROMTHEDEPTHOFIMMERSIONBYREADINGAGRADUATEDSCALE1412HYDROSTATICBALANCEFORLIQUIDANDSOLIDSUBSTANCESTHEDIFFERENCEBETWEENTHEWEIGHTOFATESTSAMPLEMEASUREDINAIRANDINASUITABLELIQUIDEGWATERCANBEEMPLOYEDTODETERMINEITSDENSITYFORSOLIDS,THEMEASUREDDENSITYISONLYREPRESENTATIVEOFTHEPARTICULARSAMPLEEMPLOYEDFORTHEDETERMINATIONOFDENSITYOFLIQUIDS,ABODYOFKNOWNVOLUME,V,ISWEIGHEDFIRSTINAIRANDTHENINTHELIQUID1413IMMERSEDBODYMETHODFORLIQUIDSUBSTANCES4INTHISMETHOD,THEDENSITYOFALIQUIDISDETERMINEDFROMTHEDIFFERENCEBETWEENTHERESULTSOFWEIGHINGTHELIQUIDBEFOREANDAFTERIMMERSINGABODYOFKNOWNVOLUMEINTHETESTLIQUID142PYCNOMETERMETHODSFORSOLIDSORLIQUIDS,PYCNOMETERSOFVARIOUSSHAPESANDWITHKNOWNVOLUMESMAYBEEMPLOYEDTHEDENSITYISCALCULATEDFROMTHEDIFFERENCEINWEIGHTBETWEENTHEFULLANDEMPTYPYCNOMETERANDITSKNOWNVOLUMEPLEASENOTICETHATONLYEUROPEANCOMMUNITY’SLEGISLATIONPUBLISHEDINTHEPAPEREDITIONSOFTHEOFFICIALJOURNALOFTHEEUROPEANCOMMUNITIESISDEEMEDAUTHENTICWHENPREPARINGTHISDOCUMENT,CAREHASBEENTAKENTOENSURECORRECTNESSOFTHETEXT;NEVERTHELESSPOSSIBILITYOFERRORSCANNOTBECOMPLETELYEXCLUDED,SODIFFERENCESMAYEXISTBETWEENTHISVERSIONANDTHEONEAGREEDANDPUBLISHEDINTHEPAPEREDITIONOFTHEOFFICIALJOURNALINCASEOFDOUBTTHEREADERISADVISEDTOCONSULTTHEOFFICIALJOURNALTHISMETHODCANBEFOUNDINDIR92/69/EECOJL383AACOMPLETELISTOFANNEXVTESTINGMETHODSANDTHECORRESPONDINGOJCANBEDOWNLOADEDFROMAPREVIOUSPAGEINTHISSITE143AIRCOMPARISONPYCNOMETERFORSOLIDSTHEDENSITYOFASOLIDINANYFORMCANBEMEASUREDATROOMTEMPERATUREWITHTHEGASCOMPARISONPYCNOMETERTHEVOLUMEOFASUBSTANCEISMEASUREDINAIRORINANINERTGASINACYLINDEROFVARIABLECALIBRATEDVOLUMEFORTHECALCULATIONOFDENSITYONEMASSMEASUREMENTISTAKENAFTERCONCLUDINGTHEVOLUMEMEASUREMENT144OSCILLATINGDENSITIMETER567THEDENSITYOFALIQUIDCANBEMEASUREDBYANOSCILLATINGDENSITIMETERAMECHANICALOSCILLATORCONSTRUCTEDINTHEFORMOFAUTUBEISVIBRATEDATTHERESONANCEFREQUENCYOFTHEOSCILLATORWHICHDEPENDSONITSMASSINTRODUCINGASAMPLECHANGESTHERESONANCEFREQUENCYOFTHEOSCILLATORTHEAPPARATUSHASTOBECALIBRATEDBYTWOLIQUIDSUBSTANCESOFKNOWNDENSITIESTHESESUBSTANCESSHOULDPREFERABLYBECHOSENSUCHTHATTHEIRDENSITIESSPANTHERANGETOBEMEASURED15QUALITYCRITERIATHEAPPLICABILITYOFTHEDIFFERENTMETHODSUSEDFORTHEDETERMINATIONOFTHERELATIVEDENSITYISLISTEDINTHETABLE16DESCRIPTIONOFTHEMETHODSTHESTANDARDSGIVENASEXAMPLES,WHICHARETOBECONSULTEDFORADDITIONALTECHNICALDETAILS,AREATTACHEDINTHEAPPENDIXTHETESTSHAVETOBERUNAT20C,ANDATLEASTTWOMEASUREMENTSPERFORMED2DATASEESTANDARDS3REPORTINGTHETESTREPORTSHALL,IFPOSSIBLE,INCLUDETHEFOLLOWINGINFORMATIONMETHODUSED,PRECISESPECIFICATIONOFTHESUBSTANCEIDENTITYANDIMPURITIESANDPRELIMINARYPURIFICATIONSTEP,IFANYTHERELATIVEDENSITY,204D,SHALLBEREPORTEDASDEFINEDIN12,ALONGWITHTHEPHYSICALSTATEOFTHEMEASUREDSUBSTANCEALLINFORMATIONANDREMARKSRELEVANTFORTHEINTERPRETATIONOFRESULTSHAVETOBEREPORTED,ESPECIALLYWITHREGARDTOIMPURITIESANDPHYSICALSTATEOFTHESUBSTANCEPLEASENOTICETHATONLYEUROPEANCOMMUNITY’SLEGISLATIONPUBLISHEDINTHEPAPEREDITIONSOFTHEOFFICIALJOURNALOFTHEEUROPEANCOMMUNITIESISDEEMEDAUTHENTICWHENPREPARINGTHISDOCUMENT,CAREHASBEENTAKENTOENSURECORRECTNESSOFTHETEXT;NEVERTHELESSPOSSIBILITYOFERRORSCANNOTBECOMPLETELYEXCLUDED,SODIFFERENCESMAYEXISTBETWEENTHISVERSIONANDTHEONEAGREEDANDPUBLISHEDINTHEPAPEREDITIONOFTHEOFFICIALJOURNALINCASEOFDOUBTTHEREADERISADVISEDTOCONSULTTHEOFFICIALJOURNALTHISMETHODCANBEFOUNDINDIR92/69/EECOJL383AACOMPLETELISTOFANNEXVTESTINGMETHODSANDTHECORRESPONDINGOJCANBEDOWNLOADEDFROMAPREVIOUSPAGEINTHISSITETABLEAPPLICABILITYOFMETHODS4REFERENCES1OECD,PARIS,1981,TESTGUIDELINE109,DECISIONOFTHECOUNCILC8130FINAL2RWEISSBERGERED,TECHNIQUEOFORGANICCHEMISTRY,PHYSICALMETHODSOFORGANICCHEMISTRY,3RDED,CHAPTERIV,INTERSCIENCEPUBL,NEWYORK,1959,VOLI,PART13IUPAC,RECOMMENDEDREFERENCEMATERIALSFORREALIZATIONOFPHYSICOCHEMICALPROPERTIES,PUREANDAPPLIEDCHEMISTRY,1976,VOL48,5084WAGENBRETH,H,DIETAUCHKUGELZURBESTIMMUNGDERDICHTEVONFLSSIGKEITEN,TECHNISCHESMESSENTM,1979,VOLLL,4274305LEOPOLD,H,DIEDIGITALEMESSUNGVONFLSSIGKEITEN,ELEKTRONIK,1970,VOL19,2973026BAUMGARTEN,D,FLLMENGENKONTROLLEBEIVORGEPACKTENERZEUGNISSENVERFAHRENZURDICHTEBESTIMMUNGBEIFLSSIGENPRODUKTENUNDIHREPRAKTISCHEANWENDUNG,DIEPHARMAZEUTISCHEINDUSTRIE,1975,VOL37,7177266RIEMANN,J,DEREINSATZDERDIGITALENDICHTEMESSUNGIMBRAUEREILABORATORIUM,BRAUWISSENSCHAFT,1976,VOL9,253255APPENDIXFORADDITIONALTECHNICALDETAILS,THEFOLLOWINGSTANDARDSMAYBECONSULTEDFOREXAMPLE1BUOYANCYMETHODS11HYDROMETERDIN12790,ISO387HYDROMETER;GENERALINSTRUCTIONSDIN12791PARTIDENSITYHYDROMETERS;CONSTRUCTION,ADJUSTMENTANDUSEPARTIIDENSITYHYDROMETERS;STANDARDIZEDSIZES,DESIGNATIONPARTIIIUSEANDTESTISO6492LABORATORYGLASSWAREDENSITYHYDROMETERSFORGENERALPURPOSEPLEASENOTICETHATONLYEUROPEANCOMMUNITY’SLEGISLATIONPUBLISHEDINTHEPAPEREDITIONSOFTHEOFFICIALJOURNALOFTHEEUROPEANCOMMUNITIESISDEEMEDAUTHENTICWHENPREPARINGTHISDOCUMENT,CAREHASBEENTAKENTOENSURECORRECTNESSOFTHETEXT;NEVERTHELESSPOSSIBILITYOFERRORSCANNOTBECOMPLETELYEXCLUDED,SODIFFERENCESMAYEXISTBETWEENTHISVERSIONANDTHEONEAGREEDANDPUBLISHEDINTHEPAPEREDITIONOFTHEOFFICIALJOURNALINCASEOFDOUBTTHEREADERISADVISEDTOCONSULTTHEOFFICIALJOURNALTHISMETHODCANBEFOUNDINDIR92/69/EECOJL383AACOMPLETELISTOFANNEXVTESTINGMETHODSANDTHECORRESPONDINGOJCANBEDOWNLOADEDFROMAPREVIOUSPAGEINTHISSITENFT20050CHEMICALPRODUCTSFORINDUSTRIALUSEDETERMINATIONOFDENSITYOFLIQUIDSAREOMETRICMETHODDIN12793LABORATORYGLASSWARERANGEFINDHYDROMETERS12HYDROSTATICBALANCEFORSOLIDSUBSTANCESISO1183METHODAMETHODSFORDETERMININGTHEDENSITYANDRELATIVEDENSITYOFPLASTICSEXCLUDINGCELLULARPLASTICSNFT20049CHEMICALPRODUCTSFORINDUSTRIALUSEDETERMINATIONOFTHEDENSITYOFSOLIDSOTHERTHANPOWDERSANDCELLULARPRODUCTSHYDROSTATICBALANCEMETHODASTMD792SPECIFICGRAVITYANDDENSITYOFPLASTICSBYDISPLACEMENTDIN53479TESTINGOFPLASTICSANDELASTOMERS;DETERMINATIONOFDENSITYFORLIQUIDSUBSTANCESISO901ISO758DIN51757TESTINGOFMINERALOILSANDRELATEDMATERIALS;DETERMINATIONOFDENSITYASTMD94155,ASTMD129667ANDASTMD148162ASTMD1298DENSITY,SPECIFICGRAVITYORAPIGRAVITYOFCRUDEPETROLEUMANDLIQUIDPETROLEUMPRODUCTSBYHYDROMETERMETHODBS4714DENSITY,SPECIFICGRAVITYORAPIGRAVITYOFCRUDEPETROLEUMANDLIQUIDPETROLEUMPRODUCTSBYHYDROMETERMETHOD13IMMERSEDBODYMETHODDIN53217TESTINGOFPAINTS,VARNISHESANDSIMILARCOATINGMATERIALS;DETERMINATIONOFDENSITY;IMMERSEDBODYMETHOD2PYCNOMETERMETHODS21FORLIQUIDSUBSTANCESISO3507PYCNOMETERSISO758LIQUIDCHEMICALPRODUCTS;DETERMINATIONOFDENSITYAT20CDIN12797GAYLUSSACPYCNOMETERFORNONVOLATILELIQUIDSWHICHARENOTTOOVISCOUSDIN12798LIPKINPYCNOMETERFORLIQUIDSWITHAKINEMATICVISCOSITYOFLESSTHANL00106M2S1AT15CDIN12800SPRENGELPYCNOMETERFORLIQUIDSASDIN12798DIN12801REISCHAUERPYCNOMETERFORLIQUIDSWITHAKINEMATICVISCOSITYOFLESSTHANL00106M2S1AT20C,APPLICABLEINPARTICULARALSOTOHYDROCARBONSANDAQUEOUSSOLUTIONSASWELLASTOLIQUIDSWITHHIGHERVAPOURPRESSURE,APPROXIMATELY1BARAT90CDIN12806HUBBARDPYCNOMETERFORVISCOUSLIQUIDSOFALLTYPESWHICHDONOTHAVETOOHIGHAVAPOURPRESSURE,INPARTICULARALSOFORPAINTS,VARNISHESANDBITUMENDIN12807BINGHAMPYCNOMETERFORLIQUIDS,ASINDIN12801PLEASENOTICETHATONLYEUROPEANCOMMUNITY’SLEGISLATIONPUBLISHEDINTHEPAPEREDITIONSOFTHEOFFICIALJOURNALOFTHEEUROPEANCOMMUNITIESISDEEMEDAUTHENTICWHENPREPARINGTHISDOCUMENT,CAREHASBEENTAKENTOENSURECORRECTNESSOFTHETEXT;NEVERTHELESSPOSSIBILITYOFERRORSCANNOTBECOMPLETELYEXCLUDED,SODIFFERENCESMAYEXISTBETWEENTHISVERSIONANDTHEONEAGREEDANDPUBLISHEDINTHEPAPEREDITIONOFTHEOFFICIALJOURNALINCASEOFDOUBTTHEREADERISADVISEDTOCONSULTTHEOFFICIALJOURNALTHISMETHODCANBEFOUNDINDIR92/69/EECOJL383AACOMPLETELISTOFANNEXVTESTINGMETHODSANDTHECORRESPONDINGOJCANBEDOWNLOADEDFROMAPREVIOUSPAGEINTHISSITEDIN12808JAULMESPYCNOMETERINPARTICULARFORETHANOLWATERMIXTUREDIN12809PYCNOMETERWITHGROUNDINTHERMOMETERANDCAPILLARYSIDETUBEFORLIQUIDSWHICHARENOTTOOVISCOUSDIN53217TESTINGOFPAINTS,VARNISHESANDSIMILARPRODUCTS;DETERMINATIONOFDENSITYBYPYCNOMETERDIN51757POINT7TESTINGOFMINERALOILSANDRELATEDMATERIALS;DETERMINATIONOFDENSITYASTMD297SECTION15RUBBERPRODUCTSCHEMICALANALYSISASTMD2111METHODCHALOGENATEDORGANICCOMPOUNDSBS4699METHODFORDETERMINATIONOFSPECIFICGRAVITYANDDENSITYOFPETROLEUMPRODUCTSGRADUATEDBICAPILLARYPYCNOMETERMETHODBS5903METHODFORDETERMINATIONOFRELATIVEDENSITYANDDENSITYOFPETROLEUMPRODUCTSBYTHECAPILLARYSTOPPEREDPYCNOMETERMETHODNFT20053CHEMICALPRODUCTSFORINDUSTRIALUSEDETERMINATIONOFDENSITYOFSOLIDSINPOWDERANDLIQUIDSPYKNOMETRICMETHOD22FORSOLIDSUBSTANCESISO1183METHODBMETHODSFORDETERMININGTHEDENSITYANDRELATIVEDENSITYOFPLASTICSEXCLUDINGCELLULARPLASTICSNFT20053CHEMICALPRODUCTSFORINDUSTRIALUSEDETERMINATIONOFDENSITYOFSOLIDSINPOWDERANDLIQUIDSPYKNOMETRICMETHODDIN19683DETERMINATIONOFTHEDENSITYOFSOILS3AIRCOMPARISONPYCNOMETERDIN55990P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