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UNE 32001:1981 HARD COAL AND ANTHRACITE. DETERMINATION OF TOTAL MOISTURE.
UNE 51101-5:1981 CONE PENETRATION OF LUBRICATING GREASE USING ONE-QUARTER AND ONE-HALF SCALE CONE EQUIPMENT
UNE 36432:1981 MACROGRAPHIC EXAMINATION BY SULFUR PRINT (BAUMAN METHOD) OF STEEL PRODUCTS AND FOUNDRY PRODUCTS
UNE 38700:1981 WROUGHT TITANIUM AND TITANIUM ALLOYS. GENERALITIES
UNE 36564:1981 HOT-ROLLED RECTANGULAR ROUNDED EDGE BARS. MESSURES AND TOLERANCES
UNE 33125:1981 TEST METHODS OF VINIC VINEGARS. DETERMINATION OF THE CONTENT IN TARTARIC ACID.
UNE 36549:1981 STEEL PRODUCTS. SECTIONS FOR SHIPBUILDING. DIMENSIONS AND TOLERANCES
UNE 34205:1981 SODIUM CHLORIDE. DETERMINATION OF HALOGENS, EXPRESSED AS CHLORIDE. MERCURIMETRIC METHOD.
UNE 58206:1981 CONTINUOUS MECHANICAL HANDLING EQUIPMENT FOR LOOSE BULK MATERIALS. TROUGHED BELT CONVEYORS (OTHER THAN PORTABLE CONVEYORS). BELT PULLEYS
UNE 34107:1981 AGRICULTURAL FOOD PRODUCTS. DETERMINATION OF CRUDE FIBRE CONTENT. MODIFIED SCHARRER METHOD.
UNE 33123:1981 DETERMINATION OF GLYCERIM CONTENT IN WINES AND VINEGARS.