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AS/NZS 1301.421:2008
$70.17
Methods of test for pulp and paper, Method 421: Determination of pH of aqueous extracts — Cold extraction method
This standard specifies a method for the determination of the pH-value defined by the electrolytes extractable by cold water from a sample of paper, board or pulp.
Table of contents
Header
About this publication
Preface
Introduction
1 Scope
2 Normative references
3 Principle
4 Reagents
4.1
4.2
4.3
5 Apparatus and equipment
5.1
5.2
6 Sampling and preparation of sample
6.1 Sampling
6.2 Preparation of sample
7 Procedure
7.1 Weighing
7.2 Extraction
7.3 Determination of pH
8 Calculation
9 Precision
9.1 Repeatability
9.2 Reproducibility
10 Test report
Annex A
A.1
A.2
A.3
Bibliography
Cited references in this standard
Content history
[Current]
[Superseded]
[Superseded]
DR 08171
Please select a variation to view its description.
| Published | 11/12/2008 |
|---|---|
| Pages | 6 |
Please select a variation to view its pdf.
