AS/NZS 1301.421:2020
Paper, board and pulps - Determination of pH of aqueous extracts - Part 1: Cold extraction
Standard adopts ISO 6588-1:2020, which 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. Standard is identical with, and has been reproduced from, ISO 6588-1:2020, Paper, board and pulps - Determination of pH of aqueous extracts - Part 1: Cold extraction.
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AS/NZS 1301.421:2020 Method of test for pulp and paper Paper, board and pulps - Determination of pH of aqueous extracts - Cold extraction
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus and equipment
7 Sampling and preparation of sample
7.1 Sampling
7.2 Preparation of sample
8 Procedure
8.1 Weighing
8.2 Extraction
8.3 Determination of pH
9 Calculation
10 Test report
Annex A (informative) Preparation of some standard buffer solutions
Annex B (informative) Precision
Bibliography
Previous versions
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AS/NZS 1301.421:2020 Method of test for pulp and paper Paper, board and pulps - Determination of pH of aqueous extracts - Cold extraction
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus and equipment
7 Sampling and preparation of sample
7.1 Sampling
7.2 Preparation of sample
8 Procedure
8.1 Weighing
8.2 Extraction
8.3 Determination of pH
9 Calculation
10 Test report
Annex A (informative) Preparation of some standard buffer solutions
Annex B (informative) Precision
Bibliography
Previous versions
AS/NZS 1301.421:2020
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.