2577146

TAPPI T 429 cm-23

Alpha-Cellulose in Paper

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 alpha-cellulose in paper. Alpha-cellulose is empirically defined as the fraction that can be filtered out of a mixture consisting of the fibrous material and sodium hydroxide solution (7.3%) of maximum dissolving power, after the fibers have previously been swollen with sodium hydroxide solution (17.5%). This method is applicable to and is intended primarily for papers made from rags or chemical wood fibers. It is not suitable for papers containing large amounts of lignin such as newsprint.

 

Product Details

Published:
2023
Number of Pages:
5
File Size:
1 file , 310 KB
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This product is unavailable in Ukraine, Russia, Belarus
 

Document History

  1. TAPPI T 429 cm-23

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    Alpha-Cellulose in Paper

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  2. TAPPI T 429 cm-10


    Alpha-Cellulose in Paper

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  3. TAPPI T 429 cm-01


    Alpha-Cellulose in Paper

    • Historical Version