council direct septemb approxim law member state relat seamless steel ga cylind eec council european commun regard treati establish european econom commun articl thereof regard propos commiss regard opinion european parliament regard opinion econom social committe member state construct ga cylind relev control subject mandatori provis vari member state hinder trade vessel approxim provis council direct eec juli approxim law member state relat common provis pressur vessel method inspect amend act access lai procedur eec pattern approv verif vessel direct advis lai technic requir compli eec type seamless steel ga cylind capac litr order import commerci restraint undergon inspect bear mark symbol adopt direct articl direct appli steel pressur resist shell seamless cylind form singl piec capabl refil transport capac litr inclus design compress liquefi dissolv gase ga cylind hereinaft refer quot cylind quot direct appli cylind made austenit steel cylind metal ad base seal direct appli irrespect number outlet cylind oj oj oj articl purpos direct quot eec type cylind quot cylind design manufactur satisfi requir direct direct eec articl member state ground relat construct inspect cylind mean direct eec direct refus prohibit restrict market place servic eec type cylind articl eec type cylind subject eec pattern approv eec type cylind subject eec verif except cylind hydraul test pressur bar capac litr articl amend adapt section annex annex direct technic progress adopt accord procedur laid articl direct eec articl procedur laid articl direct eec appli section annex direct articl member state bring forc law regul administr provis need order compli direct month notif forthwith inform commiss thereof member state ensur text provis nation law adopt field cover direct commun commiss articl direct address member state brussel septemb council presid barri direct notifi member state septemb annex definit symbol term annex yield stress purpos direct yield stress valu calcul part subject pressur steel displai lower upper yield point minimum convent yield point rp steel displai lower upper yield point rel reh rp burst pressur purpos direct quot burst pressur quot mean pressur plastic instabl maximum pressur obtain pressur burst test symbol symbol annex mean ph hydraul test pressur bar pr cylind burst pressur measur burst test bar prt calcul minimum theoret burst pressur bar yield stress account accord purpos determin calcul part subject pressur mm rel minimum lower yield point guarante cylind manufactur mm reh minimum upper yield point guarante cylind manufactur mm rp convent yield point guarante manufactur mm convent yield point stress rise proport elong equal origin gaug length rm minimum tensil strength guarante cylind manufactur mm calcul minimum thick cylindr shell wall mm nomin diamet cylind mm mandrel diamet bend test mm rmt actual tensil strength mm normal term quot normal quot direct defin paragraph euronorm normal temper uniform temperatur lowest transform point ac steel quench temper term quot quench temper quot relat heat treatment complet cylind subject cylind heat uniform temperatur upper transform point ac steel cylind cool rate exceed obtain cool water subsequ temper uniform temperatur lowest transform point ac steel heat treatment crack cylind cylind quench water addit technic requir steel steel defin method manufactur chemic composit heat treatment finish cylind subject mechan characterist manufactur give inform take account requir list chang inform deem correspond chang type steel purpos eec pattern approv method manufactur method manufactur defin refer process open hearth furnac oxygen convert electr furnac kill method chemic composit chemic composit show maximum sulphur phosphor content case carbon manganes silicon content case nickel chromium molybdenum vanadium content substanc deliber introduc alloi element carbon manganes silicon nickel chromium molybdenum vanadium content toler differ maximum minimum valu cast exce carbon maximum content maximum content manganes silicon chromium maximum content maximum content nickel molybdenum vanadium heat treatment heat treatment defin term temperatur length time held temperatur natur cool fluid stage treatment normal temper quench temper austenit temperatur quench normal fix margin appli temper temperatur condit fulfil steel kill steel resist ag finish cylind subject heat treatment normal temper quench temper sulphur phosphoru content obtain cast sampl total exce sulphur phosphoru content obtain product total exce steel mean manufactur accept member state manufactur seamless cylind member state suppli member state request list materi territori manufactur cylind cover direct opportun make independ analys purpos check sulphur phosphoru content correspond requir analys carri specimen semi finish product suppli cylind manufactur steelmak finish cylind decid specimen cylind permiss specimen cylind previous chosen mechan test pressur burst test calcul pressur part minimum wall thick equal greatest gt pic file quot quot gt smaller valu rm normal normal temper cylind rm quench temper cylind gt pic file quot quot gt convex end obtain forg tube wall thick measur centr shape end thick concav base cylind diamet cylind stand order ensur satisfactori stress distribut thick cylind wall increas progress transit section cylindr wall base construct workmanship thick cylind check condit intern extern surfac inspect manufactur order verifi wall thick point draw intern extern surfac cylind free defect advers affect oper safeti cylind cut round cylindr shell limit differ maximum minimum diamet cross section averag diamet maximum deviat cylindr part shell straight line exce mm metr length cylind footr provid suffici strong manufactur materi regard corros compat type steel cylind made shape footr give cylind adequ degre stabil footr water accumul permit ingress water ring cylind test mechan test gener requir direct mechan test carri accord euronorm euronorm tensil test steel euronorm brinel hard test euronorm bend test steel euronorm tensil test steel sheet strip mm thick euronorm bend test steel sheet strip mm thick euronorm impact test notch test piec rest support mechan test check qualiti materi cylind carri test piec finish cylind type test test criteria test cylind undergo tensil test longitudin direct bend test circumferenti direct wall thick make test piec mm wide impact test impact test piec transvers direct thick diamet cylind prevent test specimen mm wide transvers direct impact test piec longitudin direct tensil test test piec accord provis chapter euronorm mm thick chapter euronorm mm thick case gaug width length test piec mm irrespect thick test piec face test piec intern extern wall cylind machin elong express percentag gt pic file quot quot gt elong case test carri accord euronorm test carri accord euronorm obtain tensil strength rm yield stress determin tensil test accord cylind calcul upper yield point determin load elong diagram equal precis method obtain yield stress reh rel rp case bend test bend test carri test piec obtain cut ring mm wide part equal length machin edg face test piec correspond intern extern wall cylind machin bend test carri mandrel diamet cylind separ distanc test insid face ring remain mandrel test piec crack bent inward round mandrel insid edg farther diamet mandrel diagram annex iii ratio diamet mandrel thick test piec exce valu tabl gt pic file quot quot gt impact test impact test carri test piec euronorm type impact strength measur carri notch perpendicular face cylind wall test piec impact test straighten machin face extent achiev flat surfac averag impact strength obtain impact test longitudin transvers direct individu valu obtain test express cm tabl gt pic file quot quot gt hydraul pressur burst test test condit cylind subject test bear mark section hydraul pressur burst test carri put thwo success stage test rig pressur cylind increas rate cylind burst curv pressur variat time record test carri room temperatur stage increas pressur constant level plastic deform start rate exce bar sec start plastic deform phase deliveri pump phase maintain constant cylind burst interpret test interpret pressur burst test involv examin pressur time curv determin burst pressur examin tear shape edg verif case cylind concav base base cylind revers measur burst pressur pr greater gt pic file quot quot gt burst test fragment cylind main tear brittl type edg fractur radial slope relat diametr plane displai contract fractur accept meet condit case cylind thick quot quot exce mm greater part fractur unmistak longitudin fractur multipl branch fractur circumferenti develop side main part fractur extend part cylind time thicker maximum thick measur halfwai cylind case cylind convex base fractur reach centr cylind base permiss condit met case conic head convex base fractur extend part cylind diamet time nomin extern diamet cylind case concav base distanc furthermost point fractur base plane cylind exce time thick quot quot case cylind thick quot quot exce mm greater part fractur unmistak longitudin tear reveal obviou defect metal pressur cycl test cylind subject test bear mark section pressur cycl test carri cylind guarante manufactur repres minimum valu design corros fluid test cyclic maximum cyclic pressur equal pressur ph third thereof lower cyclic pressur exce upper cyclic pressur minimum number cycl maximum test frequenc shown tabl gt pic file quot quot gt temperatur measur outer wall cylind exce test test consid satisfactori cylind attain requir number cycl develop leak hydraul test water pressur cylind increas rate pressur ph reach cylind remain pressur ph long make establish pressur show tendenc fall leak test cylind show perman deform test cylind fulfil test requir reject check consist cylind test involv check point metal extern surfac cylind differ hard hb check carri transvers section cylind head base evenli space point check consist batch test carri manufactur involv check mean hard test mean error made choic origin materi sheet metal billet tube carri heat treatment case normal temper cylind test carri cylind check base meridian section made base cylind surfac obtain polish examin magnif cylind regard defect presenc fissur detect regard defect dimens pore inclus present reach valu consid pose threat safeti eec pattern approv eec pattern approv refer articl direct issu famili cylind quot famili cylind quot mean cylind factori differ length limit minimum length time diamet cylind maximum length time length test cylind applic eec pattern approv famili cylind submit document check prescrib make member state batch cylind number cylind requir test refer paragraph addit inform requir member state applic type durat heat treatment temperatur obtain provid cast analysi certif steel suppli cylind manufactur eec pattern approv process member state verifi calcul correct thick wall cylind meet requir measur transvers section circumfer longitudin section base head condit fulfil requir compli cylind select member state intern extern surfac cylind free defect make unsaf carri test cylind select test cylind length cylind mm tensil test longitudin direct bend test carri test piec upper lower region shell test cylind test cylind test cylind test sampl cylind result check satisfactori member state issu eec pattern approv certif accord model contain annex iv eec verif purpos eec verif cylind manufactur provid inspect bodi eec pattern approv certif provid inspect bodi certif state cast analys steel suppli construct cylind mean identifi cast steel cylind made provid inspect bodi document relat heat treatment certifi cylind provid normal quench temper condit state treatment appli provid inspect bodi list cylind state number inscript requir section eec verif inspect bodi ascertain eec pattern approv certif obtain cylind conform check document give data materi check technic requir set section met check extern intern visual examin cylind construct check carri manufactur accord satisfactori visual examin cover cylind submit carri test check inform suppli manufactur list refer correct mean random check assess result check consist batch carri manufactur accord result check satisfactori inspect bodi issu eec verif certif conform model contain annex type test prescrib cylind random batch cylind part thereof made cast undergon heat treatment ident circumst cylind subject test mechan test test burst test shown test wrongli carri measur error made test repeat test prove partial unsatisfactori investig inspect bodi failur due heat treatment batch reject failur due heat treatment manufactur subject cylind batch heat treatment heat treatment manufactur carri check provid inspect bodi carri test provid paragraph cylind subject heat treatment result check test carri heat treatment satisfi requir direct batch reject select specimen test carri presenc supervis repres inspect bodi test carri cylind batch subject hydraul test presenc supervis repres inspect bodi exempt eec verif case cylind exempt eec verif pursuant articl direct test inspect oper prescrib carri manufactur respons manufactur provid inspect bodi document test inspect report mark inscript mark inscript section stamp visibl legibl indel shoulder cylind case cylind capac litr mark inscript stamp shoulder suffici thick part cylind diagram show exampl mark inscript annex ii stamp mark derog requir section annex direct eec manufactur stamp eec pattern approv mark order cylind subject eec pattern approv eec verif pursuant articl direct gt pic file quot quot gt cylind exempt eec verif pursuant articl direct gt pic file quot quot gt derog requir section annex ii direct eec inspect bodi affix eec verif mark order gt pic file quot quot gt gt pic file quot quot gt construct inscript manufactur stamp construct inscript steel number indic mm calcul base symbol cylind normal condit normal temper symbol cylind quench temper condit hydraul test test pressur bar symbol quot bar quot type cylind mass cylind includ integr part exclud valv kilogram minimum capac litr guarante manufactur cylind figur mass capac decim place round capac mass origin capit letter indic countri origin manufactur mark serial number annex ii gt pic file quot quot gt annex iii illustr bend test gt pic file quot quot gt annex iv gt pic file quot quot gt technic annex eec approv certif result eec examin pattern view eec approv inform main featur pattern longitudin cross section type cylind receiv pattern approv show nomin extern diamet minimum thick cylind wall minimum thick base head minimum maximum length lmin lmax capac capac vmin vmax pressur ph manufactur draw date type cylind steel accord section type chemic composit method manufactur heat treatment guarante mechan characterist tensil strength yield point annex model eec verif certif applic council direct eec septemb gt pic file quot quot gt gt pic file quot quot gt