CSN 80 0260-1988 Man-made fibres. Viscose rayon fila- ments, staple and tow. Methods for determination of elementary and to- tal sulphur content (zinc)
1988CSN 80 0260-1988 Man-made fibres. Viscose rayon fila- ments, staple and tow. Methods for determination of elementary and to- tal sulphur content (zinc)