Paper and board. Determination of water absorptiveness. Cobb method
Paper and board. Determination of water absorptiveness. Cobb method
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1 Scope This International Standard specifies a method of determining the water absorptiveness of sized paper and board, including corrugated fibreboard, under standard conditions. It may not be suitable for paper of grammage less than 50 g/m 2 or embossed paper. It is not suitable for porous papers such as newsprint or unsized papers such as blotting paper or other papers having a relatively high water absorptiveness for which ISO 8787 [ 2 ] is more suitable. This method is not intended to be used for precise evaluation of the writing properties of paper although it does give a general indication of suitability for use with aqueous inks.
Упомянутые в описании и другие стандарты BS