250 OfficialJournaloftheEuropeanCommunities
31.3.72 OfficialJournaloftheEuropeanCommunities NoL-78/5
REGULATION (EEC)No618/72OFTHECOMMISSION
of29March1972
onthecharacteristics ofoliveoilandofcertainproductscontaining oliveoil
WhereasthemeasuresprovidedforinthisRegulation
areinaccordance withtheOpinion ofthe
Management Committee forOilsandFats;
HASADOPTED THISREGULATION :
Article 1THECOMMISSION OFTHEEUROPEAN COM­
MUNITIES ,
HavingregardtotheTreatyestablishing the
European Economic Community ;
Having regardtoCouncil Regulation No
,136/66/EEC1of22September 1966onthe
establishment ofacommonorganization ofthe
marketinoilsandfats,-aslastamended by
Regulation (EEC)No2727/71,2andinparticular
Article18(3)thereof;
HavingregardtoCouncilRegulation (EEC)No
443/723of29February1972ontheleviesonrefined
oliveoilandoncertainproductscontaining oliveoil,
andinparticularArticle8thereof;
HavingregardtoCouncil Regulation No
162/66/EEC4of27October1966ontradeinoilsand
fatsbetweentheCommunity andGreece,andin
particularArticles4(2),5(3)and9thereof;
Whereastheexportrefundsonoliveoilmaybefixed
atdifferent levelsforthevarioustypesofoil;
whereastheseoilsshouldtherefore bedistinguished
accordingtotheirchemicalcharacteristics ;
WhereasRegulation (EEC)No443/72providesfor
differentleviesforoliveoilobtained byrefining
virginoliveoilandforrefinedolive-residue oil;
whereastheseoilsshouldbedistinguished according
totheirchemicalcharacteristics ;
Whereas thetariffnomenclature resulting from
application ofthisRegulation isincorporated inthe
CommonCustomsTariff;1.Onlyoilobtained exclusively fromthe
processing ofolives,excluding re-esterified oliveoil
andanyadmixtures ofoliveoilwithothertypesof
oil,shallbeconsidered asoliveoilwithinthe
meaningofsubheading No15.07AoftheCommon
CustomsTariff.
2.Oilswhichhavethecharacteristics described in
AnnexIshallbeclassifiedundersubheadings Nos
15.07AI(a)and15.07AI(b)oftheCommon
CustomsTariff.
3.ProductsfallingwithinheadingNo15.17other
thanthoseexcludedbyAnnexIIshallbeclassified
undersubheading No15.17AoftheCommon
CustomsTariff.
4.Forthepurposesofgrantingtheexportrefund,
oilswhichhavethecharacteristics described inAnnex
Ishallbeclassifiedundersubheadings Nos15.07AII
(a)and15.07AII(b)asspecifiedinArticle2of
Regulation (EEC)No616/72.3
Article2
ThewordingofAnnexIIIshallbesubstituted forthe
Additional NotetoChapter15oftheCommon
CustomsTariff.
1OJNo172,30.9.1966 ,p.3025/66.
2OJNoL282,23.12.1971 ,p.8.
3OJNoL54,3.3.1972,p.3.
4OJNo197,29.10.1966,p.3393/66. 5OJNoL78,31.3.1972 ,p.1.

OfficialJournaloftheEuropeanCommunities 251
Article3 Commission Regulation No177/66/EEC1of7
„ .,... November 1966onthedistinction betweenvarious
ThisRegulationshallenterintoforceon1AprilrefinedoliveoUsisherebyrepealed.
ThisRegulation shallbebindinginitsentiretyanddirectlyapplicable inallMember
States.
DoneatBrussels .29March1972.
FortheCommission
ThePresident
S.L.MANSHOLT
1OJNo203,8.11.1966 ,p.3491/66.

252 OfficialJournaloftheEuropeanCommunities
ANNEX 1
Characteristics oftheoliveoilfallingwithinsubheadings Nos15.07AI(a),15.07AI(b)and
15.07AII(a)and(b)
1.Oliveoilhavingthefollowing characteristics fallswithinsubheading No15.07AI(a):
(a)afreefattyacidcontentexpressed asoleicacidofnotmorethan3%;
(b)anextinction coefficient E\at270nm(absorbence ofasolutionof1gofoilin100ml
ofisooctaneina1cmcellatawavelength of270nm),exceeding 0-25butnotexceeding
1-10and,aftertreatment ofthesampleofoilonactivatedalumina,exceeding 0-11;
(c)avariationintheextinction coefficient atapproximately 270nm,exceeding 0-01and
notexceeding 0-16.
Thatvariation isexpressed bythefollowingequation :
AK=Km—0-5(Km—4)+(Km+4)1
WhereKmistheextinction coefficient forthewavelength ofthemaximum ofthe
absorption curveatapproximately 270nm.
andKm—4andKm+4aretheextinction coefficients forwavelengths 4nmless
orgreaterthanthatofKm.
(d)absenceofpositivereactionbyolive-residue oil.
2.Oliveoilfallswithinsubheading No15.07AI(b):
(a)ifithasthecharacteristics referredtounderpoint1(a)to(c)andapositivereaction
byolive-residue oil;
(b)ifithasthecharacteristics referredtounderpoint1(a)andanextinction coefficient EI
at270nmexceeding 1-10andnotexceeding 2-00andavariation intheextinction
coefficient atapproximately 270nmnotexceeding 0-20.
3.Oliveoilhavingthefollowing characteristics fallswithinsubheading No-15.07AII(a):
(a)anextinction coefficient E|at270nm,aftertreatment ofthesampleofoilonactivated
alumina,notexceeding 0-11.
Inexceptional casescertainoilsofhighacidity,afterbeingpassedoveractivated
alumina,mayhaveanextinction coefficient E;at270nmexceeding 0-11.Insuchcases,
afterneutralization anddecolourization inthelaboratory ,theymusthavethe
characteristics oftheoilsreferredtoinpoint1;
(b)avariationintheextinction coefficient atapproximately 270nmnotexceeding 0-01;
(c)absenceofpositivereactionbyolive-residue oil.
4.Oliveoilhavingthefollowing characteristics fallswithinsubheading No15.07AII(b):
(a)afreefattyacidcontentexpressed asoleicacidofmorethan3%;and
(b)apositivereactionbyolive-residue oilor,afterneutralization anddecolourization inthe
laboratory ,thecharacteristics oftheoilsreferredtounderpoint2(b)..
METHOD OFANALYSIS
I.TREATMENT OFSAMPLE BYACTIVATED ALUMINA
1.Place30gofbasicalumina,obtainedbytheprocessdescribed inparagraph 2,ina
chromatographic columnabout35mmindiameterand450mminlength,havinga
drainingtubeabout10mmindiameter . i

OfficialJournaloftheEuropeanCommunities 253
Shakedownthealuminamechanically ,keepingthecolumnverticalandlettingitfall
gentlyseveraltimesonawoodensurface.Add100mlofa10%solutionofoilin
hexane .
Collecttheeluateandevaporate thesolventinavacuumatatemperature below25°C.
Determination oftheextinction coefficient at270nmmustbecarriedoutimmediately
ontheoilthusobtained .
2.BasicaluminaofBrockmann activityI(0%ofwater)isobtainedbyheatingpelletsof
basicalumina (forchromatography )ofbetween30^mand130fim(average80^m)
for3hoursat380—400°C.To100gofthisproductadd5mlofdistilledwaterto
obtainbasicaluminaofaBrockmann activityofbetweenIIandIIIinclusive .Stir
frequently ;thenleaveforonenightinahermetically sealedcontainer .
Checkontheactivityofthealumina
Place30gotbasicalumina (obtainedbytheprocessreferredtoabove)inachromato­
graphycolumnabout35mmindiameterand450mminlength.Passthroughthis
column,undertheconditions specifiedbythemethod,amixtureof95%ofvirgin
oliveoilwithaE)at270nmextinction coefficient lessthan0-18and5%of"ground­
nutoiltreatedduringtherefiningprocesswithdecolourizing claysandhavingaEj
at270nmextinction coefficient ofnotlessthan4.Iftheextinction coefficient ofthe
mixtureisgreaterthan0-11,thealuminaisacceptable .Ifelutionofthetrienescon­
jugatedonthisaluminahasnotoccurred ,amorehydratedaluminashouldbeused,
afteracheckthatitsatisfiestherequirements oftheprecedingtest.
II.REACTION OFOLIVERESIDUE OIL
1.Apparatus
—Round-bottomed flask,100ml,witharefluxcondenser ;
—Pipette,5ml,graduated intenths;
—Heatingsystemallowingatemperature ofabout80°Ctobereached;
—Thermometer readingfrom15to60°C.
2.Reagents
—Aqueousalcoholicsolutionofpotassium hydroxide (42-5ofKOHdissolved in72ml
ofdistilledwater,madeupto500mlwith950ethylalcohol);
—Solutionofethylalcohol,titrated70°:
—Aqueoussolutionofaceticacid1+2(byvolume),adjustedsothat.1-5mlexactly
neutralizes 5mlofthehydro-alcoholic solution ofpotassium hydroxide inthe
presenceofphenolpthalein .
3.Preparation ofthesample
Theoilisfreedfromwaterbydecantation andfiltrationthroughpapereffectedata
temperature slightlyhigherthanthefusionpointofcertainsolidconstituents which
otherwisemightseparatefromthefluidoilorfat.
4.Procedure
Placeintheflaskabout1mlofoilpreparedasindicatedinparagraph 3.Add5mlof
aqueousalcoholicsolutionofpotassium hydroxide .Fittherefluxcondenser andboil
for10minutes,shakingfromtimetotime.Allowtocooltoambienttemperature .Add
1-5mlofaqueoussolutionofaceticacidand50mlofethylalcoholsolution ,previously
broughttoatemperature of50CC.Mixbystirring,introduce thethermometer and
allowtocool,observing theappearance ofthesolutionassoonasitreachesa
temperature»of 45°C.Ifaflakyprecipitate formsatatemperature higherthan40°C,
thereactionispositive .Intheabsenceofadistinctive flakyprecipitate ,keeptheliquid
atambienttemperature ,whichmustbebetween200and22°Cinclusive ,foratleast
24hoursandifnecessaryfor48hours.Observethesolutionagain:theformation ofa
flakyprecipitate insuspension intheliquidalsoindicatesthatthereactionispositive .

254 OfficialJournaloftheEuropeanCommunities
III.NEUTRALIZATION ANDDECOLONIZATION OFTHEOLIVE OILINTHE
LABORATORY
A.Neutralization oftheoil
1.Apparatus
—Beaker,300nil,tall;
—Laboratory centrifuge with100mltubes;
—Beaker,250ml;
—Round-bottomed flasks,100ml;
—Separating funnel,1litre.
2.Reagents
—aqueoussolutionof12%sodiumhydroxide ;
—ethylalcoholsolutionof1%phenolphthalein ;
—purehexane,AR;
—purepropan—2—olAR.
3.Procedure
(a)oilswithafreefattyacidcontent,expressed asoleicacid,oflessthan30%.
Place50gofcrudeoilinatall300mlbeakerandheatto65°Cinawater
bath.Addaquantityof12%solutionofsodiumhydroxide corresponding tothe
freeacidoftheoil,withanexcessof5%,stirringgentlyallthetime.Continueto
stirfor5minutes,keepingthetemperature at65°C.
Transferthemixtureinto100mlcentrifuge tubesandseparatethesoapypaste
bycentrifugation .Pourthedecantedoilintoa250mlbeakerandwashwith
50—60mlofboilingdistilledwater,removing thewaterbymeansofasiphon.
Repeatthewashingsuntilalltracesofresidualsoapareremoved (disappearance
ofthepinkcolouringinthephenolphthalein ).
Centrifuge theoiltoeliminateanysmallquantities ofresidualwater.
(b)Oilswithafreefattyacidcontentexpressed asoleicacidexceeding 30%.
Ina11separating funnelplace50gofcrudeoil,200mlofhexane,100ml
ofpropan—2—olandaquantityof12%solutionofsodiumhydroxide
corresponding tothefreeacidoftheoil,withanexcessof0-3%.
Stirvigorously for1minute.Add100mlofdistilledwater,stiragainandallow
tostand.
Afterseparation ofthelayers,allowthelowerlayercontaining soapstodrain
off.Betweenthetwolayers(oilyontopandaqueousunderneath )anintermediary
layeroftenformsmadeupofmucilagesandinsolublesubstances whichmustalso
beeliminated .
Washthehexanesolutionofneutraloilwithrepeatedwashingsof50—60mlof
asolutionofpropan—2—ol/distilledwater1:1(v/v)untilthepinkcolouring
disappears fromthephenolphthalein .Thenremovethehexanebydistillation
inavacuum (forexampleinarotaryevaporator ).
B.Decolourization ofneutralized oil
1.Apparatus
—Round-bottomed flask,250ml,with3ground .glassnecksfortheinsertionof:
(a)athermometer graduated indegreesandallowingreadingstobetakenat
90°C;
(b)amechanical stirreroperatingat250—300revolutions perminute,equippedto
operateinavacuum ;
(c)avacuumpumpconnection .
—Vacuumpump,withamanometer ,capableofgivingresidualpressureof
15—30millibars .

OfficialJournaloftheEuropean Communities 255
2.Procedure
Weighabout100gofneutralized oilinthe3-neckedflask.Insertthethermometer
andthestirrer,connectthevacuumpumpandheatto90°C,stirringallthetime.
Maintainthattemperature ,continuing tostir,untiltheoiltobeanalysedisentirely
freefromwater(about30minutes).Thenbreakthevacuumandadd2to3gof
activatedearth.Re-establish thevacuumuntilaresidualpressureof15—30millibars
isobtainedand,maintaining atemperature of90°C,stirfor30minutesatabout
250revolutions aminute.
Filterwhilestillhotinathermostatic oven(50—60°C).

256 OfficialJournaloftheEuropeanCommunities
ANNEX 11
ProductsfallingwithinheadingNo15.17A
Thefollowingproductsdonotfallwithinheading .No15.17A:
(a)residuesresultingfromthetreatmentoffattysubstances containing oilofwhichtheiodine
valuedetermined bytheWijsmethodwithoutacatalystislowerthan70orhigher
than100;
(b)residuesresultingfromthetreatment offattysubstances containing oilofwhichtheiodine
valueisbetween70and100inclusivebutofwhichthesurfaceofthepeakhavingthe
retentionvolumeofbetasitosterol ,determined inaccordance withtheprovisions ofthe
followingnote,represents lessthan93%ofthetotalareaofthepeaksofsterols.
ANALYSIS OFTHESTEROL FRACTION OFFATTYSUBSTANCES
Analysisbychromatography inthegaseousphaseofsterolspreparedbychromatography
onthinlayersfromtheunsaponifiable matterdriedcarefullyinawaterbath.
Apparatus
1.Apparatus forchromatography onathinlayer,including inparticular fourglassplates
20X20X0-4 cm,two20X5.X0-4 cmand1micro-syringe of0-1ml;
2.Beaker,50ml;
3.Porousfilters,porosity3,diameter 15mm;
4.Round-bottomed flask,100ml;
5.Centrifuge tubewithconicalbottom,10ml,withagroundglassstopper;
6.Graduated pipettes,1ml;
7.Apparatus forchromatography inthegaseousphase,equipped withaflameionization
detectorwithasilverorglassinjectorordirectinjectionsystemonthecolumnlinkedtoa
'registering device;
8.Columnforchromatography inthegaseousphase,inglassorstainlesssteelinUorspiral
form,from1to2minlengthandfrom3to4mminternaldiameter—stationary phase
ofsiliconegum(methyltype)stabletoatleast300°C,impregnated calcineddiatomaceous
earthwashedwithacidsandsilanized,ofagranulometric measurement 80/100or100/120
mesh,atarateof2to4%;
N.B.Ascertaintypesofstainlesssteelcancauseerroneous resultsthroughdeterioration
ofthesterols,glassisrecommended .
9.Micro-syringe capableofholdingupto5or10[A.
Reagents
1.Chloroform forchromatography ;
2.Benzeneforchromatography ;
3.Silicagel(forexampleKieselgelG);
4.Referencesqlutionforplatechromatography ,madeupof5%cholesterol inchloroform ;
5.Acetoneforchromatography ;
6.0-1%solutionofsodiumsaltof2'7'-dichlorofluorescein inabsoluteethylalcohol;
7.Solutionforthesensitivitytest;1mgofcholesterol in1mlofn-pentane ;
8.Solutionfortestingtheresolution ofpeaks:0-9mgofphytosterols ofoilofcolzaand
0-1mgofcholesterol in1mlofn-pentane .Thesterolsmustbefreshlypreparedin
accordance withtheprocedure describedunderpointAoftheProcedure ;
9.Solutionforthereferencetest:1mgofphytosterols ofsunflower oilin1mlofn-pentane ,
freshlypreparedasdescribedunderpointAoftheProcedure ;

OfficialJournaloftheEuropeanCommunities 257
Preparation ofplatesforchromatography
Placeonthelayeringapparatus one20X5X0-4 cmplate,four20X20X0-4 cmplatesandone
20X5X0-4 cmplate,inthatorder.
Ina500mlround-bottomed flaskwithawideneckplace40gofsilicagelandabout80mlof
water.Stirwithaglassrodandifnecessarywithamechanical stirreruntilahomogeneous
suspension isreached.
Removeanygasesbycreatingavacuum,usingawater-jetpumpforatleastoneminute.Then
spreadthesuspension onthelayeringapparatus inalayer0-5mmthickandcovertheplates
uniformly .
Leavetheplatestodryintheairforabout15minutesandthendryinanovenat105°Cfor
2hours.Afterpreparing theplatesinthisway,keeptheminadessicator inavacuum .
PROCEDURE
A.Separation ofthesterolfractionbychromatography onathinlayer
Fillthedeveloping tankwithbenzene/acetonemixture95:5(v/v)toaheightofabout
onecm;coverwiththelidandleaveforatleast3hoursfortheliquid/vapourbalance
toestablishitself.Itisalsorecommended tofixbandsoffilterpaperontheinterior
surfacesofthetankprojecting downintotheeluant.Thiswillreducetheperiodofmigration
ofthefrontoftheliquidbyaboutone-thirdandwillprovideamoreuniformelutionof
thecomponents .
Meanwhile preparea5%solutionofunsaponifiable matterextractedbypetroleum etherin
chloroform .Takeabout0-3mlofthissolutionandusingthe0-1micro-syringe putiton
thechromatographic plateatabout1-5cmfromtheloweredge,inacontinuous and
uniformband,keepingthelinefromthebeginning asthinaspossible .
Usingtheusualtechnique ,placeafewfx1ofthereferencesolutionContaining cholesterol
atoneendoftheplateinordertoidentifytheRfofthesterolfraction.
Placetheplateinthedeveloping tankpreparedasindicatedabove.Theambienttemperature
mustbeabout20°C.
Coverwiththelidanddevelopuntilthefrontofthesolventreachesabout1cmfromthe
upperedgeoftheplate.
Removetheplatefromthedeveloping tankandallowthesolventtoevaporate inacurrent
ofhotair.
Developbysprayinguniformly withthealcoholsolutionofsodiumsaltofthe2'7'-dichloro­
fluorescein ontheplate.Byexamining theplatebyultraviolet thepositionofthesterols
canbedetermined throughalignment withthecholesterol staincomingfromthereference
solution .
Collectbyscrapingthebandofsterolswithametalspatula.
Placetheseparated silicagelina50mlbeakerwith15mlofhotchloroform ,stir,transfer
thewholeofthesilicageltotheporousfilterandfilterit.Washth6filterthreetimes,with
15mlofhotchloroform eachtime,collectingthefiltrateina100mlround-bottomed flask.
Evaporate thechloroform solutionto4to5mlandpouritintothecentrifuge tube
previously taredwithagroundglassstopper.Evaporate thesolutionbygentlyheatingin
acurrentofnitrogenuntildryandweighthesterolfractionthusobtained .
Dissolveitin2mlofchloroform .
B.Chromatographic analysisofsterolsinthegaseousphase
1.Conditions ofanalysisbychromatography inthegaseousphase
Temperature ofthecolumn :220to250°C.
Temperature oftheinjectionsystemifitisheatedseparately :20to40°Cabovethe
temperature ofthecolumn.Nitrogenflow:30to60ml/min.Disconnect thedetectorand

258 OfficialJournaloftheEuropeanCommunities
condition thenewcolumnsundertheseconditions forfrom16to24hours.Connectthe
detector,lighttheflameandregulatetheflowofhydrogen ,oxygenorairsoastoobtain
asuitableflameheightandsensitivity .Switchontheregistering deviceandallowthe
papertounrollatanappropriate speed;adjustthezeroandthemeasuring range
attenuator .Ifthebaselineisstable,theapparatus isreadyforuse.
2.Sensitivity test
Inject3to5[Aofthesensitivity testsolution (7).Apeakofcholesterol mustonly
appearonthechromatogram .
Regulatethemeasuring rangeattenuator soastouseapproximately thewholescale
oftheregistering device.
3.Peakresolution test
Inject3to5/Aoftheresolution testsolution (8).Peakswillappearonthechromatogram
forcholesterol ,brassicasterol ,campesterol and^-sitosterol .Measuretheretention
distances (distancesfromtheinjectionpointtothemaximum heightofthepeak)of
thepeaks,dcHforcholesterol ,dBforbrassicasterol ,dcforcampesterol anddsfor
/^-sitosterolandthewidthsofthebaseofthepeaks(lengthofretentionbetweenthe
intersections withthebaselineofthetangentsattheinflectionpointsonthesidesbefore
andafterthepeak),WCHforcholesterol andWBforbrassicasterol .
Theresolution ofpeaks,expressedbytheformula :
PR=2(dB—dcH)/(WB+WCH)
mustequalatleast1.
Calculatetherelativeretentiontimes(cholesterol =1-00)forbrassicasterol ,campesterol
and/^-sitosterol .
4.Reference test
Inject3to5[Aofthereferencetestsolution (9).Thecampesterol ,stigmasterol ,
/^-sitosterolandA7stigmasterol peaksshouldappearonthechromatogram .
Measuretheretentiondistancesofthepeaks,dcforcampesterol ,dsTforstigmasterol ,
dsfor/^-sitosterolanddsx-7forA7stigmasterol .
Calculatetherelativeretentiontimeswhichareapproximately :
Cholesterol 1-00(about15minutes )
Brassicasterol 1-13—1-15
Campesterol 1-32—1-34
Stigmasterol 1-44—1-46
/^-sitosterol • 1-66—1-68
A7Stigmasterol 1-88—1-92
5.Analysis
Inject3to5[Aofthesolutiontobeanalyzedandregisterthechromatogram .
C.Expression ofresults
Ininterpreting thecomposition ofthesterolfractionanalyzed,peakshavingdifferent
retentiontimesfromthosedetermined experimentally forthe6sterolsmentioned above,
shouldbeignored.
Thecontent%of/^-sitosterol isgivenbytheformula :
Areaofthe/^-sitosterolpeak
Sumoftheareasofthesixsterolpeaks

OfficialJournaloftheEuropeanCommunities 259
ANNEX III
ADDITIONAL NOTES
1.ForthepurposesofheadingNo15.07:
A.Fixedvegetableoils,fluidorsolid,obtainedbypressingareconsidered as'crude'ifthey
havenotundergone treatmentotherthan:
—decantation withinthenormalperiodoftime;
—centrifugation orfiltration,providedthatinordertoseparatetheoilfromitssolid
constituents onlymechanical force,suchasgravity,pressureorcentrifugal force,has
beenemployed (excluding anyabsorption filteringprocessandanyphysicalor
chemicalprocess).
B.Fixedvegetableoils,fluidorsolid,obtainedbyextraction continuetobeconsidered as
'crude'whentheycannotbedistinguished bytheircolour,odourortasteorbyany
recognized specialanalyticalproperties ,fromvegetableoilsandfatsobtainedbypressing .
C.Theexpression 'crudeoils'shallbetakentoextendtode-gummed soyaoilandcotton­
seedoilfromwhichthegossypolhasbeenremoved .
2.A.Onlyoilobtainedexclusively fromtheprocessing ofolives,excluding re-esterified olive
oilandanyadmixtures ofoliveoilwithothertypesofoil,isconsidered asoliveoil
withinthemeaningofsubheading No15.07A.
B.Oliveoilwiththefollowingcharacteristics fallswithinsubheading No15.07AI(a):
(a)afreefattyacidcontentexpressed asoleicacidofnotmorethan3%;
(b)anextinction coefficient EJat270nm(absorbence ofasolutionof1gofoilin
100mlofisooctaneina1cmcellatawavelength of270nm),higherthan0-25
andnotexceeding 1-10and,aftertreatmentofthesampleofoilonactivatedalumina,
higherthan0-11;
(c)avariation intheextinction coefficient atapproximately 270nm,exceeding 0-01
andnotexceeding 0-16
Thatvariation isexpressed inthefollowingequation :
AK=Km—0-5[(Km—4)+(Km+4)]
where
Km represents theextinction coefficient forthewavelength ofthe
maximum oftheabsorption curveatapproximately 270nm.
and
Km—4andKm+4describetheextinction coefficients forwavelenghts loweror
higherby4nmthanthatofK;
(d)absenceofpositivereactionofolive-residue oil.
C.Oliveoilfallswithinsubheading No15.07AI(b)ifithas:
(a)eitherthecharacteristics referredtounderpoint2B(a)to(c)andapositivereaction
ofolive-residue oil;
(b)orthecharacteristics referredtounderpoint2B(a)andanextinction coefficient E|
at270nmhigherthan1-10butnothigherthan2-00,andavariationintheextinction
coefficient atapproximately 270nmnotexceeding 0-20.
D.Theexpression 'virginoliveoil'istakentomeannaturaloliveoilobtainedexclusively
bymechanical processes ,including pressing,andexcludesanymixturewitholiveoil
obtained inadifferentmanner .

260 OfficialJournaloftheEuropeanCommunities /
3.Thefollowingdonotfallwithinsubheading No15.17A:"
(a)residuesfromthetreatment offattysubstances containing oilofwhichtheiodinevalue,
determined bytheWijsmethod,withoutacatalyst,islowerthan70orhigherthan100;
(b)residuesfromthetreatment offattysubstances containing oilofwhichtheiodinevalue
isbetween70and100inclusivebutofwhichthesurfaceofthepeak,havingtheretention
volumeof/^-sitosterol ,determined inaccordance withtheprovisions ofAnnexIIto
theRegulation referredtoinAdditional Note4beneath,represents lessthan93%of
thetotalareaofthesterolpeaks.
4.Themethodsofanalysisforthedetermination ofthecharacteristics oftheproductsreferred
toabovearethoselaiddowninAnnexesIandIIrespectively ofRegulation (EEC)No618/72.