ONORM EN 21974:1994被替代

Describes a method for determining the tearing resistance of paper. Can be used for light boards if the tearing resistance is within the range of the instrument. Does not apply to corrugated fibreboard, but may be applied to the components of such boards. Not suitable for determining the cross direction tearing resistance of highly directional paper. Includes normative references, definitions, principle, apparatus, conditioning, preparation of test pieces, procedure, calculation and expression of results, precision and test report.

ONORM EN ISO 1974:2012

BS EN 21974:1994 - Identical

DIN EN 21974 (1994-09) - Identical

SN EN 21974:1995 - Identical

I.S. EN 21974:1994 - Identical

UNI EN 21974:1995 - Identical

SS EN 21974 Ed. 1 (1995) - Identical

ISO 1974:1990 - Identical

UNE EN 21974:1996 - Identical

NF EN 21974:1994 - Identical

NBN EN 21974:1995 - Identical