commiss regul eec novemb analysi method applic addit note chapter combin nomenclatur commiss european commun regard treati establish european econom commun regard council regul eec juli tariff statist nomenclatur common custom tariff amend regul eec articl thereof order ensur uniform applic combin nomenclatur annex abovement regul provis adopt applic addit note chapter combin nomenclatur studi carri analysi method annex regul appear nomenclatur committe deliv opinion time limit set chairman adopt regul articl analysi method applic addit note combin nomenclatur contain annex regul articl regul enter forc januari regul bind entireti directli applic member state brussel novemb commiss christian scriven member commiss oj page offici journal annex analysi method applic addit note chapter combin nomenclatur principl weigh quantiti pellet dispers cold water undergo physic treatment result size reduct structur modif result materi siev larg quantiti cold water residu retain siev dri weigh amount product pass siev express percentag mass sampl correct account moistur content apparatu analyt balanc glass beaker woven metal wire cloth siev apertur mm filter paper dri dry oven dry oven procedur weigh repres sampl pellet beaker add ml cold water stand hour occasion gentl stir transfer content beaker siev larg quantiti cold water transfer residu retain siev filter paper place oven dry overnight overnight dry dry residu oven constant weight calcul express result mass gram dri siev residu mass gram sampl moistur content sampl determin method section annex commiss direct eec oj