commiss regul ec decemb amend regul ec lai detail rule applic commun scale grade pig carcas commiss european commun regard treati establish european commun regard council regul eec novemb determin commun scale grade pig carcas amend regul ec articl thereof regul eec introduc partial dissect pig carcas mean obtain total weight red striat muscl lai commiss regul eec detail assess method number carcas dissect dissect method partial dissect lead specif maximum toler statist error assess improv procedur author grade method introduc step protocol enumer element measur provid regul accord opinion manag committe pigmeat adopt regul articl regul eec amend articl replac articl method assess lean meat content carcas author grade method mean articl regul eec base repres sampl nation region pigmeat product concern assess method consist carcas lean meat content ascertain accord dissect method laid annex combin nation establish quick method carcas assess doubl regress statist proven procedur result precis equal obtain standard regress techniqu carcas method annex author grade method subject root squar deviat error measur member state inform commiss protocol grade method author applic territori describ dissect trial indic principl method base equat assess percentag lean meat protocol part includ element provid annex ii part protocol present commiss prior start dissect trial applic grade method territori member state author accord procedur provid articl regul eec basi protocol applic grade method correspond particular descript commun decis author annex present regul ad annex ii regul eec articl regul enter forc januari regul bind entireti directli applic member state brussel decemb commiss rené steichen member commiss oj oj oj annex annex predict lean meat percentag base dissect major cut dissect execut accord refer method refer lean meat percentag calcul gt num gt weight tender loin weight lean fascia includ shoulder loin ham belli gt den gt weight tender loin weight dissect cut weight remain cut weight lean cut calcul subtract total lean element cut total weight cut dissect annex ii part protocol give detail descript dissect trial includ trial period time schedul author procedur number locat abattoir descript pig popul concern assess method present statist method relat sampl method chosen descript nation quick method exact present carcas part protocol give detail descript result dissect trial includ present statist method relat sampl method chosen equat introduc amend numer graphic descript result descript apparatu weight limit pig method limit relat practic method