TAPPI T 222 : 2002 : R2011
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
ACID-INSOLUBLE LIGNIN IN WOOD AND PULP
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
|
| ProductNote |
Reconfirmed 2011
|
| PublisherName |
Technical Association of the Pulp & Paper Industry
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| TAPPI T 236 : 2013 | KAPPA NUMBER OF PULP |
| TAPPI T 204 : 2007 | SOLVENT EXTRACTIVES OF WOOD AND PULP |
| TAPPI T 264 : 2007 | PREPARATION OF WOOD FOR CHEMICAL ANALYSIS |
| TAPPI T 253 : OM 86 | HYPO NUMBER OF PULP |
| TAPPI T 257 : 2014 | SAMPLING AND PREPARING WOOD FOR ANALYSIS |
| TAPPI T 1200 : 2014 | INTERLABORATORY EVALUATION OF TEST METHODS TO DETERMINE TAPPI REPEATABILITY AND REPRODUCIBILITY |