2577143

TAPPI T244 cm-23

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

standard by Technical Association of the Pulp and Paper Industry , 2023

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Full Description

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. It is a faster and less accurate method than other referenced methods. 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:
2023
Number of Pages:
3
File Size:
1 file , 210 KB
Note:
This product is unavailable in Ukraine, Russia, Belarus
 

Document History

  1. TAPPI T244 cm-23

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

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

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  3. TAPPI T244 cm-99


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

    • Historical Version