TAPPI T244

Description

TAPPI T244 – Acid-Insoluble Ash in Wood, Pulp, Paper, and Paperboard

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).”

Product Details

Published:

2011

Number of Pages:

3

File Size:

1 file , 40 KB

Note:

This product is unavailable in Ukraine, Russia, Belarus