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TAPPI T 428 : 2013

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

HOT WATER EXTRACTABLE ACIDITY OR ALKALINITY OF PAPER
Available format(s)

Hardcopy , PDF

Superseded date

11-24-2021

Language(s)

English

Published date

01-01-2013

Publisher

Technical Association of the Pulp & Paper Industry

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Superseded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

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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Hardcopy - English
PDF - English
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