Table of Contents

1 -  AS 2434.7-2002 METHODS FOR THE ANALYSIS AND TESTING OF LOWER RANK COAL AND ITS CHARS - LOWER RANK COAL-DETERMINATION OF...
4 -  PREFACE
5 -  CONTENTS
6 -  1 SCOPE
6 -  2 REFERENCED DOCUMENTS
6 -  3 DEFINITIONS
6 -  4 SAFETY
6 -  5 SAMPLE
6 -  5.1 General
6 -  5.2 Equilibration of the sample
7 -  6 DETERMINATION OF MOISTURE IN THE ANALYSIS SAMPLE
7 -  6.1 Direct gravimetric method
7 -  6.1.1 Principle
7 -  6.1.2 Reagents
7 -  6.1.3 Apparatus
8 -  6.1.4 Procedure
8 -  6.1.5 Calculation
8 -  6.2 Indirect method
8 -  6.2.1 Principle
9 -  6.2.2 Reagents
9 -  6.2.3 Apparatus
9 -  6.2.4 Procedure
9 -  6.2.5 Calculation of moisture content
10 -  7 REPORTING OF RESULTS
10 -  8 PRECISION
10 -  9 TEST REPORT

Abstract

Specifies two procedures for the determination of moisture in the analysis sample of lower rank coal.

RECONFIRMATION NOTICE
Technical Committee MN-001 has reviewed the content of this publication and in accordance with Standards Australia procedures for reconfirmation, it has been determined that the publication is still valid and does not require change.
Certain documents referenced in the publication may have been amended since the original date of publication. Users are advised to ensure that they are using the latest versions of such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.
Approved for reconfirmation in accordance with Standards Australia procedures for reconfirmation on 15 July 2013.
The following are represented on Technical Committee MN-001:

Australasian Institute of Mining and Metallurgy
Australian Coal Association
Australian Coal Industry Reference Samples
Australian Coal Preparation Society
Bureau of Steel Manufacturers of Australia
Coalfield Geology Council of NSW
CSIRO Energy Technology
National Association of Testing Authorities Australia
National Generators Forum
The University of New South Wales
The University of Queensland
University of Newcastle


To view or download a copy of the reconfirmation notice please go to the reconfirmation link near the top of this page.

Scope

This Standard sets out two procedures for the determination of moisture in the analysis sample of lower rank coal, viz. direct gravimetric method, where the water is absorbed into magnesium perchlorate and weighed, and an indirect method, where the difference in the mass of the coal before and after drying is measured. Both methods involve drying under nitrogen.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
ProductNote	Reconfirmed 12-08-2013
Pages
ISBN
Committee	MN-001
Supersedes	DR 02277 CP AS 2434.7-1986