commiss regul ec januari amend regul eec determin commun method analysi wine commiss european commun regard treati establish european commun regard council regul ec common organis market wine articl thereof method measur alcohol strength wine hydrostat balanc updat valid accord internation recognis criteria intern vine wine offic adopt descript method gener assembl measur method constitut simpler accur mean check alcohol strength volum wine avoid disput aris accur method updat descript method experiment valu valid paramet method includ chapter annex commiss regul eec regul eec amend measur provid regul accord opinion manag committe wine adopt regul articl chapter annex regul eec quot alcohol strength volum quot amend paragraph point delet text annex regul insert paragraph paragraph paragraph point quot densimetri hydrostat balanc quot delet articl regul enter forc seventh dai public offici journal european union regul bind entireti directli applic member state brussel januari commiss franz fischler member commiss oj regul amend regul ec oj oj regul amend regul ec oj annex quot valid method determin alcohol strength wine hydrostat balanc method measur introduct alcohol strength volum measur market princip compli label rule alcohol strength volum equal number litr ethanol contain litr wine measur refer vol object field applic method measur densimetri hydrostat balanc purpos regulatori provis forc trial temperatur set principl definit principl method base distil wine volum volum distil method chapter distil elimin volatil substanc homologu ethanol ethanol ethanol homologu ethyl ester includ alcohol strength occur distil densiti distil obtain measur densiti liquid temperatur equal quotient mass volum wine express ml alcohol strength wine measur densimetri hydrostat balanc base archimed principl bodi immers liquid receiv vertic upward thrust liquid equal weight liquid displac reagent analysi state reagent recognis analyt grade water grade defin iso float clean solut sodium hydroxid prepar ml weigh sodium hydroxid make volum volum ethanol apparatu equip usual laboratori apparatu singl pan hydrostat balanc sensit mg float volum ml special adapt balanc suspend thread diamet exceed mm measur cylind bear level mark float capabl contain complet volum cylind locat mark surfac liquid penetr support thread measur cylind intern diamet mm larger float thermomet temperatur measur probe graduat degre tenth degre calibr weight calibr recognis certifi bodi procedur float measur cylind clean measur distil water dri soft laboratori paper shed fibr rins solut densiti determin measur made apparatu reach stabil restrict alcohol loss evapor calibr balanc balanc intern calibr system hydrostat balanc capabl calibr weight check offici certifi bodi calibr float fill measur cylind mark doubl distil water water equival puriti microfilt water conduct mω cm temperatur prefer immers float thermomet stir read densiti liquid apparatu correct read equal water measur temperatur control water alcohol solut fill measur cylind mark water alcohol mixtur strength temperatur prefer immers float thermomet stir read densiti liquid alcohol strength apparatu alcohol strength establish equal previous determin alcohol strength note solut alcohol strength calibr float doubl distil water measur densiti distil alcohol strength apparatu pour test sampl measur cylind graduat mark immers float thermomet stir read densiti liquid alcohol strength apparatu note temperatur densiti measur ρt correct ρt tabl densiti ρt water alcohol mixtur tabl ii annex ii chapter clean float measur cylind immers float float clean solut measur cylind soak hour spin float period rins copiou amount tap water distil water dry soft laboratori paper shed fibr carri procedur float regularli requir result densiti calcul real alcohol strength tabl give alcohol strength volum vol function densiti water alcohol mixtur intern tabl adopt intern legal metrolog organis recommend comparison measur made hydrostat balanc procedur obtain electron densimet sampl alcohol strength vol repeat reproduc measur inter laboratori ring test alcohol strength sampl measur hydrostat balanc electron densimet repeat reproduc valu deriv extens multiannu inter comparison exercis compar sampl wine densiti alcohol strength prepar month industri scale properli store stock bottl deliv anonym product laboratori laboratori laboratori particip monthli ring test organis union italiana vini verona itali iso uni rule intern protocol profici test chemic analysi laboratori establish aoac iso iupac iso ilac guidelin annual report suppli compani particip equip electron hydrostat balanc accur decim place data process devic electron densimet autosampl analysi rule valid method sampl analys consecut determin alcohol strength result tabl show result measur obtain laboratori hydrostat balanc tabl show result obtain laboratori electron densimet evalu result trial result examin evid individu systemat error amp lt cochran grubb test success procedur internation agre protocol design conduct interpret method perform studi repeat reproduc calcul repeat reproduc defin protocol carri result remain remov outlier assess method valid refer statutori method compar precis criteria compar precis data obtain collabor trial predict level precis predict level calcul horwitz equat comparison trial result predict level give indic method suffici precis level analyt measur horwitz predict calcul horwitz equat rsdr logc measur concentr analyt express decim horrat comparison actual precis measur precis predict horwitz equat method measur level analyt calcul hor rsdr measur rsdr horwitz interlaboratori precis horrat satisfactori inter laboratori precis unsatisfactori precis variabl analyt purpos variat obtain greater expect type method emploi hor calcul assess intra laboratori precis approxim rsdr horwitz rsdr horwitz assum approxim tabl show differ measur obtain laboratori electron densimetri hydrostat balanc exclud sampl low alcohol strength techniqu show poor reproduc good agreement gener observ sampl fidel paramet tabl show averag fidel paramet comput monthli trial carri januari repeat vol hydrostat balanc vol electron densimetri reproduc vol hydrostat balanc vol electron densimetri conclus result determin alcohol strength wide rang wine show compar measur carri hydrostat balanc electron densiti meter frequenc oscil demonstr valu valid paramet similar method gt tabl gt gt tabl gt gt tabl gt gt tabl gt quot