1 . COMMON CUSTOMS TARIFF - TARIFF HEADINGS - CLASSIFICATION OF GOODS - CRITERIA - OBJECTIVE PROPERTIES 2.AGRICULTURE - COMMON ORGANIZATION OF THE MARKET - CEREALS - EXPORT REFUNDS FOR CEREAL-BASED COMPOUND FEEDING-STUFFS - PROPORTION OF CEREAL PRODUCTS - DETERMINATION - CRITERIA - LACK OF EFFECT OF MANUFACTURING PROCESS ( COMMISSION REGULATIONS ( EEC ) NOS 661/72 AND 1121/72 ) 3.AGRICULTURE - COMMON ORGANIZATION OF MARKETS - CEREALS - EXPORT REFUNDS FOR CEREAL-BASED COMPOUND FEEDING-STUFFS - PROPORTION OF CEREAL PRODUCTS - DETERMINATION - INGREDIENTS TO BE TAKEN INTO ACCOUNT - CONSTITUENTS ( COMMISSION REGULATIONS ( EEC ) NOS 661/72 AND 1121/72 )