commiss direct novemb establish commun method analysi offici control feedingstuff eec commiss european commun regard treati establish european econom commun regard council direct juli introduct commun method sampl analysi offici control feedingstuff articl thereof direct requir offici control feedingstuff carri commun method sampl analysi purpos check complianc requir aris provis laid law regul administr action qualiti composit feedingstuff commiss direct eec june establish number commun method analysi progress work make advis adopt set method measur provid direct accord opinion stand committe feedingstuff adopt direct articl member state requir analys offici control feedingstuff content moistur volatil nitrogen base total phosphoru crude oil fat carri method annex direct gener provis set part introduct annex commiss direct eec june establish commun method analysi offici control feedingstuff applic method annex direct articl member state januari bring forc law regul administr provis compli direct forthwith inform commiss thereof articl direct address member state brussel novemb commiss presid franco malfatti oj oj annex determin moistur purpos scope method make determin moistur content feedingstuff cover analysi milk product straight feedingstuff analysi miner substanc mixtur compos predominantli miner substanc analysi oil seed oleagin fruit defin council regul eec septemb establish common organis market oil fat determin moistur content oil seed oleagin fruit annex iii commiss regul eec septemb draw reduct sampl determin oil content impur moistur oil seed principl sampl desicc condit vari natur feedingstuff loss mass determin weigh carri preliminari dry deal solid feedingstuff high moistur content apparatu crusher moistur absorb materi easi clean rapid crush produc appreci heat prevent contact air meet requir laid hammer water cool micro crusher collaps cone mill slow motion cogwheel crusher analyt balanc accur mg dry contain corrod metal glass lid ensur airtight closur work surfac allow test sampl spread cm electr heat isotherm oven properli ventil ensur rapid temperatur regul adjust electr heat vacuum oven fit oil pump mechan introduc hot dri air dry agent calcium oxid desicc thick perfor metal porcelain plate effici dry agent procedur oper section carri immedi open packag sampl analysi carri duplic prepar feedingstuff come sampl crush divid avoid variat moistur content cereal groat sampl grind particl pass mm mesh siev leav reject mm round mesh siev oj oj dry cereal flour groat meal oven thermal capac pre set return temperatur minut maximum number test sampl insid dry simultan ventil sampl common wheat dri hour result differ obtain hour dry feedingstuff liquid past form feedingstuff predominantli compos oil fat sampl weigh nearest mg add quantiti anhydr sand weigh nearest mg mix homogen product obtain dry feedingstuff come weigh contain lid nearest mg weigh weigh contain nearest mg sampl spread evenli place contain lid oven preheat prevent oven temperatur fall unduli introduc contain rapidli leav dry hour reckon time oven temperatur return replac lid contain remov oven leav cool minut desicc weigh nearest mg feedingstuff compos predominantli oil fat dry oven addit minut differ weigh exce moistur cereal flour groat meal weigh contain lid nearest mg weigh weigh contain nearest mg crush sampl spread evenli place contain lid oven preheat prevent oven temperatur fall unduli introduc contain rapidli leav dry hour reckon time oven temperatur return replac lid contain remov oven leav cool minut desicc weigh nearest mg compound feedingstuff sucros lactos straight feedingstuff locust bean hydrol cereal product malt seed dri beet chip fish sugar solubl compound feedingstuff miner salt includ water crystal weigh contain lid nearest mg weigh weigh contain nearest mg sampl spread evenli place contain lid vacuum oven preheat prevent oven temperatur fall unduli introduc contain rapidli bring pressur torr leav dry hour pressur current hot dry air dry agent sampl instanc disconnect vacuum pump prescrib pressur reach reckon dry time moment oven temperatur return carefulli bring oven back atmospher pressur open oven place lid contain immedi remov contain oven leav cool minut desicc weigh nearest mg dry addit minut vacuum oven reweigh differ weigh exce moistur preliminari dry feedingstuff come solid feedingstuff high moistur content make crush difficult subject preliminari dry weigh uncrush sampl nearest mg compress agglomer feedingstuff roughli divid suitabl contain cm aluminium plate cm rim leav dry oven moistur content reduc remov oven leav cool uncov laboratori hour weigh nearest mg crush immedi dry natur feedingstuff cereal grain moistur content subject preliminari dry weigh unground grain nearest mg suitabl contain cm aluminium plate cm rim leav dry minut oven remov oven leav cool uncov laboratori hour weigh nearest mg grind immedi dry calcul result moistur content percentag sampl calcul formula dry preliminari dry gt pic file quot quot gt dry preliminari dry gt pic file quot quot gt repeat differ result parallel determin carri sampl exce moistur observ crush prove alter moistur content product result analysi compon feedingstuff correct basi moistur content sampl initi state ii determin volatil nitrogen base microdiffus purpos scope method make determin content volatil nitrogen base express ammonia feedingstuff principl sampl extract water solut clarifi filter volatil nitrogen base displac microdiffus solut potassium carbon collect solut boric acid titrat sulphur acid reagent solut trichloroacet acid indic dissolv mg bromocresol green mg methyl red ml ethanol boric acid solut litr graduat flask dissolv boric acid ml ethanol ml water add ml indic mix adjust colour solut light red ad solut sodium hydroxid ml solut fix maximum nh satur potassium carbon solut dissolv og potassium carbon ml boil water leav cool filter sulphur acid apparatu mixer tumbler approxim glass plastic conwai cell diagram microburett graduat ml procedur weigh sampl nearest mg place ml water ml graduat flask mix tumbler minut add ml trichloroacet acid solut make volum water shake vigor filter pleat filter pipett introduc ml boric acid solut central part conwai cell ml sampl filtrat crown cell cover partial greas lid drop ml satur potassium carbon solut quickli crown close lid cell airtight turn cell carefulli rotat horizont plane reagent mix leav incub hour room temperatur hour microburett titrat volatil base boric acid solut sulphur acid carri blank test procedur sampl analys calcul result ml correspond mg ammonia express result precentag sampl repeat differ result parallel determin carri sampl exce rel ammonia content absolut ammonia content observ ammonia content sampl exce dilut initi filtrat gt pic file quot quot gt distil purpos scope method make determin content volatil nitrogen base express ammonia fish meal practic urea applic ammonia content principl sampl extract water solut clarifi filter volatil nitrogen base displac boil point ad magnesium oxid collect specif quantiti sulphur acid excess back titrat solut sodium hydroxid reagent solut trichloroacet acid magnesium oxid anti foam emuls silicon sulphur acid sodium hydroxid solut solut methyl red ethanol apparatu mixer tumbler approxim distil apparatu kjeldahl type procedur weigh sampl nearest mg place ml water ml graduat flask mix tumbler minut add ml trichloroacet acid solut make volum water shake vigor filter pleat filter quantiti clear filtrat presum content volatil nitrogen base ml suitabl dilut ml add magnesium oxid drop anti foam emuls solut alkalin litmu paper add magnesium oxid distil ml solut kjeldahl apparatu collect distil erlenmey flask accur measur volum ml sulphur acid distil avoid overh side boil sulphur acid solut minut cool back titrat excess sulphur acid sodium hydroxid solut presenc methyl red indic carri blank test procedur sampl analys calcul result ml correspond mg ammonia express result percentag sampl repeat differ result parallel determin carri sampl exce rel ammonia iii determin total phosphoru photometr method purpos scope method make determin content total phosphoru feedingstuff analysi product low phosphoru case product rich phosphoru gravimetr method principl sampl mineralis dry combust case organ feedingstuff acid digest case miner compound liquid feedingstuff acid solut solut treat molybdovanad reagent optic densiti yellow solut form measur spectrophotomet nm reagent calcium carbon hydrochlor acid approx nitric acid nitric acid sulphur acid molybdovanad reagent mix ml ammonium heptamolybd solut ml ammonium monovanad solut ml nitric acid litr graduat flask make volum water ammonium heptamolybd solut dissolv hot water ammonium heptamolybd nh mo add ml ammonia make litr water ammonium monovanad solut ammonium monovanad nh vo dissolv ml hot water stir constantli slowli add ml dilut nitric acid ml hno ml make litr water standard solut mg phosphoru ml dissolv potassium dihydrogen phosphat kg po water make litr water apparatu silica porcelain ash crucibl electr muffl furnac thermostat set ml kjeldahl flask graduat flask precis pipett spectrophotomet test tube mm diamet stopper grade diamet mm capac ml procedur prepar solut natur sampl prepar solut usual procedur weigh sampl nearest mg place test sampl kjeldahl flask add ml sulphur acid shake impregn substanc complet acid prevent stick side flask heat boil point minut leav cool slightli add ml nitric acid heat gentli leav cool slightli add nitric acid bring back boil point repeat procedur colourless solut obtain cool add water decant liquid ml graduat flask rins kjeldahl flask hot water leav cool make volum water homogenis filter sampl organ substanc free calcium magnesium dihydrogen phosphat weigh sampl nearest mg ash crucibl mix test sampl complet merg calcium carbon ash oven white grei ash obtain charcoal matter transfer ash ml beaker add ml water hydrochlor acid effervesc ceas add ml hydrochlor acid place beaker sand bath evapor dry make silica insolubl redissolv residu ml nitric acid boil sand bath minut evapor dry decant liquid ml graduat flask rins beaker time hot water leav cool make volum water homogenis filter develop color measur optic densiti dilut aliquot part filtrat obtain obtain phosphoru concentr ml place ml solut test tube add ml molybdovanad reagent homogenis leav stand minut measur optic densiti spectrophotomet nm solut obtain ad ml molybdovanad reagent ml water calibr curv standard solut prepar solut phosphoru ml ml solut add thereto ml molybdovanad reagent homogenis leav stand minut measur optic densiti trace calibr curv plot optic densiti quantiti phosphoru concentr ml curv linear calcul result determin amount phosphoru test sampl calibr curv express result percentag sampl repeat differ result parallel determin carri sampl exce rel phosphoru content absolut phosphoru content iv determin crude oil fat purpos scope method make determin content crude oil fat feedingstuff cover analysi oil seed oleagin fruit defin council regul eec septemb determin oil content product annex commiss regul eec septemb method depend natur feedingstuff method extract ether applic feedingstuff come method applic feedingstuff oil fat total extract diethyl prior hydrolysi feedingstuff anim origin gluten dri potato pulp dri brew distil drei wast dri yeast wast biscuit bread cook food milk product feedingstuff high proport product compound feedingstuff enrich fat principl method oil fat extract diethyl ether solvent distil residu dri weigh method sampl hydrolis hot hydrochlor acid solut cool filter residu wash dri extract diethyl ether method reagent anhydr diethyl ether virtual free peroxid anhydr sodium sulphat hydrochlor acid filtrat aid kieselgur hyflo supercel carbon tetrachlorid apparatu soxhlet type extractor equival apparatu explos proof heat apparatu temperatur control vacuum dry oven torr procedur method weigh sampl nearest mg mix anhydr sodium sulphat place mixtur extract thimbl free oil fat cover fat free wad cottonwool mix carri thimbl place thimbl extract extract hour diethyl ether soxhlet type extractor regul heat obtain siphon hour collect ether extract dry weigh flask fragment pumic stone distil ether dry evapor residu half hour vacuum dry oven cool desicc weigh dry minut ensur weight oil fat remain constant loss weight mg method weigh sampl nearest mg place ml beaker ml erlenmey flask add ml hydrochlor acid fragment pumic stone cover beaker watch glass fit erlenmey flask reflux condens bring mixtur gentl boil low flame hot plate hour product stick side contain oil fat undergo subsequ qualiti test replac fragment pumic stone glass bead cool add quantiti filtrat aid suffici prevent loss oil fat filtrat filter moisten fat free doubl filter paper wash residu cold water acid reaction ceas check filtrat oil fat presenc filtrat sampl extract diethyl ether method hydrolysi place doubl filter paper residu watch glass dry half hour oven place doubl filter paper dry residu extract thimbl extract diethyl ether proce paragraph calcul result express result percentag sampl repeat differ result parallel determin carri sampl exce oil fat observ product high content oil fat difficult crush unsuit draw homogen reduc test sampl proce weigh sampl nearest mg mix anhydr sodium sulphat extract diethyl ether make extract obtain ml carbon tetrachlorid homogenis ml solut place small dry weigh flask fragment pumic stone distil solvent dry proce paragraph elimin solvent extract residu left thimbl crush residu fine mm return product extract thimbl add sodium sulphat extract diethyl ether proce paragraph calcul result percentag sampl take account aliquot part extract formula ether extract gramm aliquot part extract ether extract gramm extract product low oil fat test sampl increas oil fat undergo subsequ qualiti test replac fragment pumic stone glass bead