regul eec commiss juli establish method determin qualiti sugar bought intervent agenc commiss european commun regard treati establish european econom commun regard council regul eec decemb common organis market sugar amend regul eec articl thereof commiss regul eec june lai detail rule applic bui sugar intervent agenc establish qualiti characterist white sugar raw sugar prevent member state appli method determin qualiti characterist provid uniform rule commun level gener accept method analysi rule method question made applic bui intervent agenc date entri forc regul eec absenc method contract conclud condit basi measur provid regul accord opinion manag committe sugar adopt regul articl method determin qualiti characterist sugar refer regul eec establish set annex regul articl regul enter forc dai public offici journal european commun sugar bought intervent agenc appli effect juli regul bind entireti directli applic member state brussel juli commiss presid jean rei oj oj oj annex method determin qualiti white sugar eec procedur award point ash content icumsa conduct ash sourc proceed session icumsa apparatu conduct measur instrument measur cm accur advis measur cell temperatur maintain ºc ºc mean water bath graduat flask cm cm cm pipett total deliveri cm prepar solut sugar solut potassium chlorid solut doubl distil deionis water specif conduct cm vessel pipett rins water qualiti instrument measur conduct calibr mean potassium chlorid solut end mg potassium chlorid previous dehydr heat ºc dull red heat dissolv water litr graduat flask made volum water transfer cm solut mean pipett cm graduat flask make volum water ºc solut potassium chlorid specif conduct cm deduct specif conduct water method oper instrument instrument set show mention specif conduct water mention specif conduct water calcul cell constant fresh solut potassium chlorid solut prepar calibr method oper sugar solut prepar dissolv sugar ºc cm graduat flask dissolv sugar water make adequ mix solut measur cell read made temperatur solut ºc deduct read read water result obtain read water specif conduct cm subscript show sugar solut number point gt pic file quot quot gt toler shown correspond conform iso decis cm equal point point ash ash determin specif conduct water made quantiti water sugar solut mix cm graduat flask dissolv sugar make cm measur ºc measur precis thermostat control temperatur correct limit error colour brunswick institut method sourc schneider emmerich dubourg zucker sucr franç apparatu brunswick standard colour scale daylight flouresc lamp mount small box open front cm deep cm wide cm high perpendicular distanc lamp sugar sampl cm oper ey protect direct light lamp mean protect strip cm high osram hnt philip tl lamp suggest suitabl purpos lamp test view import spectral distribut light emit order yellowish brown colour sugar sampl stand appropri wall case paint insid matt brown colour instanc dark walnut stain bottom surfac put white blot paper colour sugar stand small box set lamp ey level make comparison sampl direct daylight illumin nearbi lamp make test difficult method oper sugar put small squar box white light blue insid line side mm height mm level mean cover care box sampl standard sampl fill brim colour line box absolut ident fals result obtain box space round box suitabl initi sampl roughli compar insert posit colour scale carefulli compar colour closest effect place altern left colour comparison averag result independ observ averag express tenth colour unit sugar crystal size differ standard sampl colour reflect crystal observ number point colour unit colour unit point colour solut icumsa method filter membran filter um mercuri extrus method um hagen poiseuil method sourc de whallei icumsa method sugar analysi proc session icumsa apparatu prepar solut requir erlenmey flask cm vacuum filtrat apparatu membran filter filter flask capac cm vacuum pump membran filter averag pore diamet um mercuri extrus method um hagen poiseuil method concentr solut determin refractometr measur extinct photomet enabl measur mm made suffici accuraci cell select cell fill distil water compar give extinct cell path length cm method oper sugar weigh wide neck erlenmey flask add distil water weight cm distil water volum graduat cylind dissolv shake shake machin unnecessari seek greater accuraci concentr chang filtrat meantim membran filter soak distil water ten minut filtrat apparatu deaerat solut occur whilst filtrat carri concentr determin refractometr ºbrix cell fill rins solut cell close immedi avoid liquid striation occur comparison cell fill distil water measur made immedi nm water comparison cell filter membran filter gt pic file quot quot gt cell path length cm specif graviti gt pic file quot quot gt addit criteria polaris icumsa method raw sugar sourc proc session icumsa seq proc session icumsa seq proc session icumsa equip polarimet intern sugar scale ºs compli icumsa definit analyt balanc accur graduat flask cm flask special calibr volum cm correct degre accuraci mm polarimet tube toler mm shorter tube similar rel accuraci mm mm end surfac parallel ten minut arc rotat assembl tube optic axi appar chang measur end plate show intern stress show optic activ surfac parallel minut arc filter paper moistur content method oper sugar weigh transfer graduat flask cm distil demineralis water dissolv sugar heat clarif add cm basic lead acet solut reagent satisfi icumsa requir sourc de whallei icumsa method sugar analysi mix add water mark foam occur dispers drop alcohol ether leav flask fifteen minut thermostat control water bath temperatur dry insid wall neck flask filter paper fine point pipett make level mark mix content flask turn time whilst keep close hand clarif need filtrat place dimens filter cm pour funnel short stem order beaker solut evapor reason funnel cover watch glass polarimet tuber previous clean dri rins approxim third volum sugar solut fill care air bubbl tube tube insert polarimet measur made accuraci ºs quartz wedg saccharimet optic rotat function temperatur case solut brought temperatur saccharimet prior make cm differ temperatur exce ºc visual instrument read time ºs averag express hundredth ºs saccharimet check mean quartz plate equival ºs correct temperatur quartz wedg saccharimet add ºs ºc subtract ºs ºc ºc measur made mean circular scale polarimet jacket tube recommend connect water bath control ºc make flask mark made ºc ºc quartz control plate ºc ºc establish st ºs ºc st ºs reduc substanc invert sugar icumsa method berlin institut method sourc de whallei icumsa method sugar analysi schneider emmerich zucker beih equip water bath cm erlenmey flask pipett cm burett reagent müller solut crystallin copper sulphat cu dissolv cm hot distil water dissolv rochel salt na tartrat anhydr sodium carbon cm hot water cool mix solut litr graduat flask make volum water shake solut vigor activ carbon leav stand hour filter harden filter paper membran filter storag separ small quantiti cuprou oxid note solut filter acet acid iodin solut sodium thiosulph solut starch solut solut solubl starch satur solut na cl exact strength iodin thiosulph solut determin usual method potassium iodat method oper cm erlenmey flask sugar dissolv distil demineralis water addit water solut made cm add cm müller solut pipett mix stand boil water bath ten minut second boil interrupt introduct flask water bath flask suspend level solut cm level water end heat period cool rapidli stream cold water agit solut avoid oper oxygen air redissolv part cuprou oxid precipit cool solut add cm acet acid immedi stir add excess iodin solut cm precipit dissolv shake solut surplu iodin back titrat thiosulph solut correct deduc obtain iodin consum cm quot boil quot quot blank quot obtain consumpt iodin test water sugar solut carri quot boil quot correct determin batch müller solut pure reagent exce cm quot boil quot obtain consumpt iodin test mixtur sugar solut müller solut heat left stand room temperatur ten minut ad acet acid quot sucros correct quot take account reduc action sucros condit sugar equal cm deduct correct consumpt iodin solut obtain cm correspond mg invert sugar sampl cm iodin solut invert sugar moistur icumsa method sourc de whallei icumsa method sugar analysi weigh unground sugar previous weigh aluminium capsul close fit cover glass receptacl ground glass stopper diamet vessel chosen thick layer sugar exce cm weight diamet cm place sampl oven ºc hour dry process remov cover vessel cool close vessel desicc weigh cool room temperatur weigh analyt balanc accur mg gt pic file quot quot gt