TAPPI T 428 : 2013
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
HOT WATER EXTRACTABLE ACIDITY OR ALKALINITY OF PAPER
Hardcopy , PDF
24-11-2021
English
01-01-2013
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1 Scope
2 Summary
3 Significance
4 Definitions
5 Apparatus
6 Reagents
7 Sampling
8 Test specimen
9 Procedure
10 Calculations
11 Report
12 Precision
13 Keywords
14 Additional information
Literature Cited
Evaluates the titratable acidity or alkalinity (end point at pH 7.0) of an aqueous extract of paper (filtered and extracted by boiling water for 1 h). It specifies one extraction and so does not measure the total acidity or alkalinity of paper, for which exhaustive extraction is required.
| DocumentType |
Official Test Method
|
| Pages |
5
|
| PublisherName |
Technical Association of the Pulp & Paper Industry
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| TAPPI T 400 : 2011 | SAMPLING AND ACCEPTING A SINGLE LOT OF PAPER, PAPERBOARD, CONTAINERBOARD, OR RELATED PRODUCT |
| TAPPI T 435 : 2002 | HYDROGEN ION CONCENTRATION (pH) OF PAPER EXTRACTS (HOT EXTRACTION METHOD) |
| ASTM E 70 | TEST METHOD FOR PH OF AQUEOUS SOLUTIONS WITH THE GLASS ELECTRODE |
| TAPPI T 1200 : 2014 | INTERLABORATORY EVALUATION OF TEST METHODS TO DETERMINE TAPPI REPEATABILITY AND REPRODUCIBILITY |
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