TAPPI T 222 : 2002
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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ACID-INSOLUBLE LIGNIN IN WOOD AND PULP
Hardcopy , PDF
English
21-08-2018
24-11-2021
1 Scope
2 Summary of method
3 Significance
4 Definitions
5 Apparatus
6 Reagents
7 Sampling
8 Test specimens
9 Procedure
10 Calculation
11 Report
12 Precision
13 Keywords
14 Additional information
Reference
The carbohydrates in wood and pulp are hydrolyzed and solubilized by sulfuric acid; the acid-insoluble lignin is filtered off, dried, and weighed Specifies a procedure which can be applied to the determination of acid-insoluble lignin in wood and in all grades of unbleached pulps.
| DevelopmentNote |
Supersedes Tappi 13 (12/2000)
|
| DocumentType |
Official Test Method
|
| Pages |
5
|
| ProductNote |
Reconfirmed 2002
|
| PublisherName |
Technical Association of the Pulp & Paper Industry
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
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