19/30343659 DC - BS ISO 21436. Pulps. Determination of lignin content. Acid hydrolysis method

19/30343659 DC

BS ISO 21436. Pulps. Determination of lignin content. Acid hydrolysis method

Status : Current, Draft for public comment   Published : December 2019

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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.




Standard Number19/30343659 DC
TitleBS ISO 21436. Pulps. Determination of lignin content. Acid hydrolysis method
StatusCurrent, Draft for public comment
Publication Date23 December 2019
Normative References(Required to achieve compliance to this standard)ISO 638, ISO 14453, ISO 1762, ISO 7213
Informative References(Provided for Information)ISO/TR 24498, TAPPI UM 250, TAPPI T222, ASTM D1106
International RelationshipsISO/DIS 21436:2019
Draft Expiry Date13 February 2020
DescriptorsPaper, Paper pulp, Chemical pulp, Hydrolysis, Lignin, Pulp
ICS85.040
Title in FrenchPâtes — Détermination de la teneur en lignine — Méthode d’hydrolyse par voie acide
CommitteePAI/11
PublisherBSI
FormatA4
DeliveryYes
Pages19
File Size328 KB
NotesWarning: this draft is not current beyond its expiry date for comments.
Price£20.00


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