Pappersteknik

Kommittébeteckning: SIS/TK 157 (Massa och papper)
Källa: ISO
Svarsdatum: den 17 feb 2020
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The method is applicable to unbleached, bleached and semi-bleached pulp with a lignin content above 1%. It is not generally intended for fully bleached chemical pulp, because the lignin content in these pulps is too low to be determined accurately.

Kommittébeteckning: SIS/TK 157 (Massa och papper)
Källa: ISO
Svarsdatum: den 17 feb 2020
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This method describes the determination of the carbohydrate composition in wood pulp samples. This method makes it possible to determine concentrations of individual anhydrous monosaccharides down to 1 mg/g oven-dry pulp.

Kommittébeteckning: SIS/TK 543 (Dokumentbevarande)
Källa: ISO
Svarsdatum: den 3 mar 2020
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This document is applicable to papers and boards used for conservation of cellulose based documents.