council direct juli approxim law member state relat ga volum meter 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 method control ga volum meter subject mandatori provis differ member state hinder trade instrument approxim provis council direct juli approxim law member state relat provis measur instrument method metrolog control laid eec type approv eec initi verif procedur accord direct technic requir design function ga volum meter laid adopt direct articl direct appli ga volum meter volumetr meter meter deform wall meter rotari piston volumetr meter turbin meter articl meter bear eec mark symbol annex direct subject eec type approv submit eec initi verif articl member state refus prohibit restrict place market entri servic ga volum meter bear eec type approv symbol eec initi verif mark articl member state put forc law regul administr provis need order compli direct eighteen month notif forthwith inform commiss thereof member state ensur text main provis nation law adopt field cover direct commun commiss articl direct address member state brussel juli council presid moro oj oj oj annex chapter definit term annex rang load rang load ga meter bound maximum flow qmax minimum flow qmin cyclic volum volumetr meter quot cyclic volum volumetr meter quot mean volum ga cycl oper meter movement move compon meter end compon indic intermedi transmiss return time origin posit calcul multipli volum repres complet revolut test element transmiss ratio measur devic index counter oper pressur refer pressur oper pressur oper pressur ga meter differ pressur ga inlet meter atmospher pressur refer pressur refer pressur pr ga meter ga pressur volum ga relat pressur tap measur refer pressur laid chapter iii pressur absorpt pressur absorpt ga meter differ pressur measur inlet outlet meter flow ga output drive constant constant output drive volum repres complet turn shaft drive calcul multipli volum repres complet turn test element transmiss ratio index counter shaft gener provis ga volum meter gener chapter annex lai gener provis satisfi ga volum meter cover articl direct chapter ii iii annex lai special provis relat meter concern construct materi meter manufactur solid materi low intern stress chang ag suffici resist corros attack gase distribut condens sound meter case meter ga tight maximum oper pressur protect interfer meter construct interfer affect accuraci measur imposs damag verif mark protect seal direct ga flow meter indic devic function posit direct flow direct arrow arrow requir direct ga flow fix construct metrolog properti flow equal qmax meter oper continu time laid chapter ii iii chang metrolog perform limit chapter addit devic meter fit addit devic correct record supplementari indic addit subject eec type approv procedur meter fit output drive oper detach indic pre payment devic complementari addit devic control free end drive protect plug similar arrang seal gt pic file quot quot gt meter fit integr puls gener gt pic file quot quot gt inscript meter carri group dial plate indic devic special badg plate inscript number type approv meter identif mark manufactur number year manufactur meter size design meter form capit number laid chapter ii iii maximum flow express qmax minimum flow express qmin dm maximum oper pressur express pmax mn pmax bar mbar volumetr meter nomin cyclic volum express dm inscript directli visibl easili legibl indel normal condit meter metrolog servic issu type approv decid case natur ga badg plate meter carri commerci design special seri number ga distributor mark indic conform european standard indic relat repair made special authoris indic inscript prohibit counter test element counter counter form drum element except rule drum calibr cubic metr decim multipl submultipl cubic metr symbol mark index plate drum indic submultipl cubic metr provid distinguish drum separ mark decim point case drum figur decim multipl cubic metr index plate mark fix drum indic quot quot read made cubic metr counter suffici number drum unit drum volum pass oper period thousand hour maximum flow rate test element meter design check suffici accuraci purpos incorpor design integr test unit arrang permit connect portabl test unit integr test element element counter form continu revolv drum carri graduat scale pointer pass fix dial graduat scale disc carri graduat scale move past fix refer mark graduat scale test element unit graduat unambigu decim submultipl begin scale figur interv scale divis constant scale millimetr scale divis form posit neg number graduat line fine uniform case divis form line repres multipl case divis form line repres multipl distinguish greater length pointer refer mark suffici thin permit easi read diamet drum dial diamet drum millimetr diamet graduat scale mention chapter millimetr read counter counter design read simpl juxtaposit figur advanc figur advanc figur part index complet whilst figur immedi lower rang describ tenth remov counter meter design counter remov easili examin maximum permiss error measur error express rel ratio percentag differ volum volum pass meter volum error relat measur volum air refer densiti kg normal atmospher condit ambient air test laboratori consid satisfi condit maximum permiss error chapter ii iii valid authoris direct flow pressur absorpt maximum permiss valu maximum permiss valu pressur absorpt chapter ii iii applic verif mark seal purpos applic eec verif mark seal ga meter certifi sole meter meet requir present direct locat locat mark chosen dismantl part seal involv destruct mark inscript mention item chapter special badg plate mark fix manner damag special plate remov locat provid verif mark seal plate carri inscript requir present annex part case protect interfer liabl affect accuraci measur eec type approv initi verif eec type approv request type approv meter includ document accompani type submit descript meter approv request draw perspect photograph meter plan assembl complet meter supplement detail draw part list inform consid metrolog servic concern plan show locat verif mark protect seal declar meter manufactur conform type meet requir safeti maximum oper pressur badg plate eec initi verif meter submit eec initi verif work order meter addit devic oper output drive accessori connect examin connect expressli authoris verif mark seal meter undergon successfulli verif test provid verif mark receiv seal locat provid protect compon interfer liabl affect meter characterist chapter ii provis relat ga volum meter deform wall field applic present chapter appli provis chapter ga meter measur ga pass effect mean measur chamber deform wall rang capac design tabl authoris valu maximum flow upper limit minimum flow minimum valu cyclic volum design meter gt pic file quot quot gt type meter qmin lower number tabl item chapter numer qmin express number column tabl decim submultipl number meter cyclic volum tabl item chapter approv provid model satisfi requir endur test mention connect item chapter detail construct meter differ calcul cyclic volum volum meter exce meter inclus provid devic prevent oper counter ga flow authoris direct test element meter inclus test element manufactur item chapter meter inclus test element manufactur item chapter detach test element manufactur item chapter scale divis element graduat satisfi requir type shown tabl gt pic file quot quot gt meter test element manufactur item chapter typic deviat seri thirti success measur carri flow order qmax condit volum air exce valu tabl gt pic file quot quot gt maximum permiss error gener provis maximum permiss error posit neg tabl gt pic file quot quot gt eec initi verif error meter flow qmin qmax exce sign pressur absorpt total pressur absorpt total pressur absorpt flow air densiti kg flow rate equal qmax exce averag gt pic file quot quot gt mechan pressur absorpt mechan pressur absorpt absorpt pressur flow air densiti kg flow qmin qmin exce gt pic file quot quot gt valu relat maximum mechan pressur absorpt special provis meter oper pressur exce mn bar provis item chapter mechan pressur absorpt appli total pressur absorpt mention item chapter meter consider eec type approv type sampl applic place initi dispos compet author sampl meter manufactur accord type sampl number spread size request compet author applic approv cover meter size result test wholli satisfactori sampl meter call derog provis allow sampl meter dispos compet author date decis type approv sampl fulli examin sampl meter remain properti applic return type approv grant examin type sampl sampl meter satisfi requir chapter item chapter addit rang differ maximum minimum error function flow rate exce meter type sampl sampl meter subject endur test test carri meter inclus maximum meter capac air meter badg plate specifi ga meter test effect wholli partli ga meter inclus maximum capac meter air ga durat endur test meter cyclic volum equal greater valu mention tabl item chapter meter inclus hr test interrupt complet sixti dai meter inclus meter measur volum air ga oper hr maximum output meter test complet month period meter cyclic volum valu tabl item chapter durat endur test durat hr carri greater number meter item chapter descript meter gener characterist endur test meter satisfi requir rang differ maximum minimum error function flow exce meter point error greater maximum minimum initi error mechan pressur absorpt increas mbar meter oper pressur ist greater mn bar differ error flow rate qmax error flow rate qmax increas modif model approv request approv concern modif model approv metrolog servic approv primari model decid natur modif extent provis item chapter applic eec initi verif accuraci test meter consid satisfi requir maximum permiss error requir met flow rate flow rate qmin qmin flow rate order qmax flow rate qmax flow rate qmax meter oper pressur greater mn bar examin conduct condit guarante equal obtain test mention chapter iii provis ga meter rotari piston turbin field applic present chapter appli provis chapter rotari piston ga meter measur ga pass effect mean measur chamber rotari wall turbin ga meter axial flow ga rotat turbin wheel number revolut wheel repres volum ga pass rang capac ga meter rang shown tabl correspond design gt pic file quot quot gt decim multipl line detail construct rotari piston meter meter includ upstream downstream static pressur tap millimetr diamet permit measur pressur drop pressur measur upstream constitut refer pressur meter incorpor manual arrang turn piston provid interfer correct oper meter bear shaft rotari piston meter size construct provid access break protect seal turbin meter meter incorpor pressur tap permit indirectli determin pressur immedi upstream turbin wheel refer pressur devic throttl ga flow upstream rotor meter incorpor pressur tap requir item chapter pressur tap immedi throttl permit determin pressur drop throttl devic pressur tap pressur tap provid mean close pressur tap refer pressur indel mark quot pr quot pressur tap quot quot test element appli provis item chapter maximum scale unit test element gt pic file quot quot gt scale test element number gt pic file quot quot gt maximum permiss error maximum permiss error posit neg tabl gt pic file quot quot gt error exce half maximum permiss error sign eec type approv type sampl applic place initi dispos compet author sampl meter manufactur accord type sampl request compet author number spread size case request approv cover meter size result test wholli satisfactori supplementari sampl call derog provis allow sampl meter dispos compet author date decis type approv sampl fulli examin sampl meter remain properti applic return type approv grant examin examin includ determin error meter test air densiti kg test result separ consider error curv meter remain band limit maximum permiss error eec initi verif rang flow rate approv request differ maximum minimum error meter exce rang qmax qmax meter subject endur test air ga endur test carri maximum capac meter period oper meter measur volum air ga oper hr maximum capac total period test exceed month endur test meter examin air densiti kg standard equip test refer item chapter test condit valu error determin flow item chapter meter except differ error found test refer item chapter differ maximum minimum error curv exce meter except rang qmax qmax eec initi verif accuraci test meter consid satisfi requir maximum permiss error requir met flow rate rotari piston meter qmin qmin qmax qmax qmax turbin meter qmin qmin qmin qmax qmax qmax examin conduct condit guarante equal obtain test mention valu item chapter vari