commiss direct juli adapt technic progress time council direct eec approxim law member state relat ga volum meter eec commiss european commun regard treati establish european econom commun regard council direct eec juli approxim law member state relat common provis measur instrument method metrolog control amend act access greec articl thereof view technic develop field question direct eec amend commiss direct eec amend measur provid direct accord opinion committe adapt technic progress direct elimin technic barrier trade measur instrument adopt direct articl annex direct eec text item ii iii iii iii replac accord annex direct articl member state bring forc law regul administr provis order compli direct forthwith inform commiss thereof articl direct address member state brussel juli commiss karl heinz narj member commiss oj oj oj annex connect detach addit devic expos end drive shaft suitabl protect locat verif mark seal locat mark seal chosen dismantl part seal mark seal result damag thereto inscript mention item affix special data plate plate perman fixtur mark seal locat damag special plate remov object prevent remov plate locat provid verif mark seal plate carri inscript requir annex except plate perman fixtur part meter protect interfer liabl affect alter indic indic devic meter alter break connect measur devic indic devic remov displac metrolog import part meter connect detach addit devic protect devic refer item ga meter submit eec initi verif work order eec initi verif guarante proper function accuraci read addit devic refer item eec verif mark eec seal affix addit devic save connect provid item verif mark seal affixtur meter undergon successfulli verif test provid eec initi verif mark receiv eec seal locat mention item purpos affix eec initi verif mark seal ga meter certifi sole meter satisfi requir direct ii maximum torqu ga meter pursuant item appli drive shaft indic ga meter qmin vari prejudic item ii iii meter incorpor upstream downstream ga circuit static pressur tap measur pressur absorpt pressur measur upstream constitut refer pressur iii pressur tap bore pressur tap diamet mm case slit shape pressur tap slit width mm cross section direct flow mm pressur tap provid mean closur make ga tight pressur tap refer pressur indel mark quot pr quot pressur tap quot quot iii accuraci test meter consid satisfi requir maximum permiss error requir met flow rate qmin qmax greater qmin qmax qmax qmax qmax examin conduct condit guarante equal obtain test mention