PAPEL. DETERMINACION DEL ESPESOR MEDIO Y DE LA DENSIDAD APARENTE
PAPER. DETERMINATION OF BULKING THIKNESS AND APPARENT DENSITY
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CTN 57 - Cellulose and paper
ISO 438:1980 (Identical)
It is cancelled by: UNE-EN 20534:1994
Cancel: UNE 57008:1971
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