Coal and coke - Analysis and testing Guide to the evaluation of measurements made by on-line coal analysers
Standards Australia
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<text>AS 1038.24-1998 COAL AND COKE - ANALYSIS AND TESTING - GUIDE TO THE EVALUATION OF MEASUREMENTS MADE BY ON-LINE COAL ANALYSER</text>
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<pageno>4</pageno>
<text>PREFACE</text>
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<pageno>5</pageno>
<text>CONTENTS</text>
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<pageno>6</pageno>
<text>FOREWORD</text>
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<text>1 SCOPE</text>
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<pageno>7</pageno>
<text>2 REFERENCED DOCUMENTS</text>
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<pageno>7</pageno>
<text>3 DEFINITIONS</text>
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<text>3.1 Absolute dynamic precision</text>
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<pageno>7</pageno>
<text>3.2 Accuracy</text>
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<text>3.3 Bias</text>
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<text>3.4 By-line type installation</text>
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<pageno>8</pageno>
<text>3.5 Comparative test method</text>
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<text>3.6 Comparison period</text>
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<text>3.7 Interrogation process</text>
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<text>3.8 Interrogation volume</text>
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<text>3.9 Interrogation zone</text>
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<text>3.10 Measurand</text>
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<text>3.11 On-belt type installation</text>
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<pageno>8</pageno>
<text>3.12 On-line analyser</text>
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<pageno>8</pageno>
<text>3.13 Precision</text>
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<pageno>8</pageno>
<text>3.14 Reference test method</text>
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<text>3.15 Reference value</text>
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<pageno>8</pageno>
<text>3.16 Relative dynamic precision</text>
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<text>3.17 Static precision</text>
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<pageno>8</pageno>
<text>4 SAFETY</text>
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<pageno>9</pageno>
<text>5 ANALYSER INSTALLATIONS</text>
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<text>5.1 General</text>
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<text>5.2 Methods of analysis</text>
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<text>5.3 Installation configurations</text>
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<text>6 EVALUATION PROCEDURES</text>
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<text>6.1 Introduction</text>
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<text>6.2 Steps in evaluation</text>
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<text>7 EVALUATION OF INSTRUMENT STABILITY</text>
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<text>7.1 Introduction</text>
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<text>7.2 Initial stability measurement</text>
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<text>7.3 Subsequent stability measurement</text>
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<pageno>15</pageno>
<text>8 EVALUATION OF CALIBRATION</text>
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<text>8.1 Introduction</text>
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<text>8.2 Two-way comparative test</text>
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<text>8.3 Calibration maintenance using reference material</text>
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<text>9 EVALUATION OF OPERATIONAL MEASUREMENT PERFORMANCE</text>
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<text>9.1 Introduction</text>
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<text>9.2 Relative dynamic precision</text>
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<text>9.3 Absolute dynamic precision</text>
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<text>10 APPLICATION TO SPECIFIC SITUATIONS</text>
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<text>APPENDIX A - REFERENCES</text>
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<text>APPENDIX B - EXAMPLE BLOCK DIAGRAMS OF SYSTEMS</text>
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<text>B1 ON-BELT TYPE</text>
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<text>B2 BY-LINE TYPE</text>
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<text>APPENDIX C - SOURCES OF MEASUREMENT VARIATION</text>
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<text>C1 ERRORS ATTRIBUTABLE TO THE REFERENCE METHOD</text>
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<text>C1.1 General</text>
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<text>C1.2 Sampling</text>
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<text>C1.3 Manual sampling</text>
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<text>C1.4 Calibration sampling</text>
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<text>C1.5 Sample preparation</text>
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<text>C1.6 Testing</text>
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<text>C2 ERRORS ATTRIBUTABLE TO THE ANALYSER</text>
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<text>C2.1 General</text>
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<text>C2.2 Instrumental characteristics</text>
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<text>C2.3 Presentation</text>
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<text>C2.4 Calibration</text>
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<text>C2.5 Mechanical sampling and preparation</text>
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<text>APPENDIX D - COMPARATIVE TEST METHODS</text>
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<text>D1 REFERENCE METHOD</text>
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<text>D2 ROOT MEAN SQUARE DEVIATION (RMSD)</text>
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<text>D2.1 General</text>
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<text>D2.2 Procedure</text>
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<text>D3 THREE-WAY COMPARATIVE TEST</text>
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<text>D3.1 General</text>
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<text>D3.2 Procedure</text>
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<text>D4 THE GRUBBS ESTIMATOR</text>
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<text>APPENDIX E - STATISTICAL ASSESSMENT PROCEDURES</text>
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<text>E1 MEAN</text>
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<text>E2 STANDARD DEVIATION</text>
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<text>E3 VARIANCE</text>
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<text>E4 PRECISION</text>
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<text>E5 VARIANCE RATIO (F-TEST)</text>
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<text>E6 t TESTS</text>
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<text>E7 SCATTER DIAGRAM</text>
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<text>E8 OUTLIER CRITERION</text>
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<text>E9 LINEAR REGRESSION ANALYSIS</text>
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<text>E10 SIGNIFICANCE OF REGRESSION</text>
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<text>E11 BIAS OF SCALE</text>
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<text>E12 ASSESSMENT OF TOTAL BIAS</text>
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<text>E13 STANDARD DEVIATION OF THE DIFFERENCES</text>
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<text>E14 STANDARD DEVIATION BY GRUBBS ESTIMATOR</text>
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<text>APPENDIX F - SAMPLING TERMS - ILLUSTRATIVE</text>
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Sets out the recommended practices for the evaluation of on-line coal analysers. It defines various categories of analysers and describes their operation. It also describes appropriate techniques of statistical assessment and makes specific recommendations concerning the procedures for evaluation and calibration maintenance of on-line analysers.
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.
This Guide sets out recommended practices for the evaluation of on-line coal analysers.
It defines various categories of analyser and describes their operation. It also describes appropriate techniques of statistical assessment and makes specific recommendations concerning the procedures for evaluation and calibration maintenance of on-line analysers. This Guide will-(a) clarify terminology; (b) present an overview of different kinds of analysers commercially available; (c) provide general observations regarding interpretation of measurements by on-line analysers; and (d) present to prospective users options available to evaluate performance of on-line analysers.
NOTE: A bibliography of reference texts appropriate to the various sections of this Guide is given in Appendix A.
| Document Type | Standard |
| Status | Current |
| Publisher | Standards Australia |
| ProductNote | Reconfirmed 06-08-2013 |
| Committee | MN-001 |
| Supersedes |
|
