TAPPI T244 cm-11

TAPPI T244 cm-11

Acid-Insoluble Ash in Wood, Pulp, Paper, and Paperboard

52,00 €

Détails

This method describes a procedure for determining the acid-insoluble ash content of cellulose samples.

The sample is dry-ashed and the residue treated with hydrochloric acid. The insoluble residue is filtered, washed, ignited, and weighed.

This method measures all acid insoluble material. For a more accurate but time-consuming wet-ash procedure for determining the silicates and silica content of pulp, see TAPPI T 245 "Silicates and Silica in Pulp (Wet Ash Method)."

Informations supplémentaires

Auteur Technical Association of the Pulp and Paper Industry
Edité par TAPPI
Type de document Norme
Thème /subgroups/9488
ICS 85.060 : Papiers et cartons
Nombre de pages 3
Remplace TAPPI T244 cm-99
Mot-clé TAPPI T244 cm-11