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AS 4264.1-1995

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Coal and coke - Sampling Higher rank coal - Sampling procedures

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Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

06-30-2017

Superseded by

AS 4264.1-2009

Language(s)

English

Published date

01-01-1995

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US$124.22
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1 - AS 4264.1-1995 COAL AND COKE - SAMPLING - HIGHER RANK COAL - SAMPLING PROCEDURES
4 - PREFACE
5 - CONTENTS
6 - SECTION 1 - SCOPE AND GENERAL
6 - 1.1 SCOPE
6 - 1.2 REFERENCED DOCUMENTS
7 - 1.3 DEFINITIONS
7 - 1.3.1 Bias
7 - 1.3.2 Coefficient of variation
7 - 1.3.3 Common sample
7 - 1.3.4 Constant-mass division
7 - 1.3.5 Cut
7 - 1.3.6 Divided increment
7 - 1.3.7 Division
7 - 1.3.8 Duplicate sampling
7 - 1.3.9 Error
7 - 1.3.10 Fixed-rate division
7 - 1.3.11 General analysis sample
7 - 1.3.12 Gross sample
7 - 1.3.13 Increment
7 - 1.3.14 Laboratory sample
7 - 1.3.15 Lot
7 - 1.3.16 Manual sampling
7 - 1.3.17 Mass-basis sampling
8 - 1.3.18 Mechanical sampling
8 - 1.3.19 Nominal top size
8 - 1.3.20 Partial sample
8 - 1.3.21 Pass
8 - 1.3.22 Precision
8 - 1.3.23 Random error
8 - 1.3.24 Range of influence
8 - 1.3.25 Reduction (in particle size)
8 - 1.3.26 Replicate sampling
8 - 1.3.27 Sample preparation
8 - 1.3.28 Sampling unit
8 - 1.3.29 Size analysis sample
8 - 1.3.30 Stage
8 - 1.3.31 Standard deviation
8 - 1.3.32 Strata
8 - 1.3.33 Stratified random sampling
8 - 1.3.34 Systematic sampling
9 - 1.3.35 Time-basis sampling
9 - 1.3.36 Total moisture sample
9 - 1.3.37 Top size
9 - 1.3.38 Variance
10 - SECTION 2 - SAMPLING PROCEDURES
10 - 2.1 SCOPE OF SECTION
10 - 2.2 ESTABLISHING A SAMPLING SCHEME
10 - 2.2.1 General
11 - 2.2.2 Total moisture determination
11 - 2.3 MASS OF INCREMENT
11 - 2.3.1 General
13 - 2.3.2 Minimum mass of increment for falling-stream samplers
13 - 2.3.3 Minimum mass of increment for cross-belt samplers
13 - 2.3.4 Minimum mass of increment for manual sampling
13 - 2.4 NUMBER OF PRIMARY INCREMENTS AND SAMPLING UNITS
13 - 2.4.1 General
14 - 2.4.2 Calculation of number of primary increments and sampling units from the increment standard deviation
18 - 2.4.3 Calculation of number of primary increments and sampling units from the standard deviation within strata
18 - 2.4.4 Modification of precision
19 - 2.4.5 Variogram method
26 - 2.5 MASS OF GROSS SAMPLES AND PARTIAL SAMPLES
26 - 2.5.1 General
26 - 2.5.2 Minimum mass of gross sample
26 - 2.5.3 Minimum mass of partial samples
28 - 2.5.4 Minimum mass of total moisture samples
28 - 2.6 MASS-BASIS SAMPLING
28 - 2.6.1 General
28 - 2.6.2 Sampling interval
28 - 2.6.3 Cutter
28 - 2.6.4 Taking of increments
29 - 2.6.5 Constituting a gross sample or partial sample
29 - 2.6.6 Methods of division
29 - 2.6.7 Division of increments prior to forming partial samples or gross samples
29 - 2.6.8 Division of partial samples prior to forming gross samples
29 - 2.6.9 Division of gross sample, partial sample or increment
30 - 2.6.10 Mass of primary increment
30 - 2.6.11 Number of increments
30 - 2.7 TIME-BASIS SAMPLING
30 - 2.7.1 General
30 - 2.7.2 Sampling interval
30 - 2.7.3 Cutter
30 - 2.7.4 Taking of primary increments
30 - 2.7.5 Combining of primary increments
31 - 2.7.6 Method of division
31 - 2.7.7 Division of gross sample, partial sample or increment
31 - 2.7.8 Mass of increment
31 - 2.7.9 Number of primary increments
31 - 2.8 RANDOM STRATIFIED SAMPLING- FIXED MASS OR TIME INTERVALS
31 - 2.9 MANUAL SAMPLING FROM MOVING STREAMS
31 - 2.9.1 General
31 - 2.9.2 Choosing the sampling location
32 - 2.9.3 Sampling implements
32 - 2.9.4 Mass of increments
32 - 2.9.5 Number of primary increments
32 - 2.9.6 Sampling procedures
32 - 2.10 MECHANICAL SAMPLING FROM MOVING STREAMS
32 - 2.10.1 General
32 - 2.10.2 Design of the sampling system
33 - 2.10.3 Sample cutters
35 - 2.10.4 Mass of increments
35 - 2.10.5 Number of increments
35 - 2.10.6 Routine checking
35 - 2.10.7 Checking precision and bias
35 - 2.11 SAMPLING FROM A STOPPED BELT
36 - 2.12 SAMPLING FROM STATIONARY SITUATIONS
36 - 2.12.1 General
37 - 2.12.2 Uniformity of increment mass
37 - 2.12.3 Bias testing
37 - 2.12.4 Sampling implements
38 - 2.12.5 Sampling from stockpiles
38 - 2.12.6 Sampling from wagons or trucks
38 - 2.12.7 Sampling from ships’ holds
39 - 2.13 SAMPLING SMALL QUANTITIES OF COAL
39 - 2.13.1 General
39 - 2.13.2 Methods of sample division
39 - 2.14 PACKING AND MARKING OF SAMPLES
40 - SECTION 3 - SAMPLE PREPARATION
40 - 3.1 GENERAL
40 - 3.2 FUNDAMENTALS OF SAMPLE PREPARATION
40 - 3.2.1 Introduction
40 - 3.2.2 Minimum mass of sample to be retained after division
41 - 3.2.3 Air-drying
42 - 3.2.4 Particle size reduction
44 - 3.2.5 Sample mixing
44 - 3.2.6 Division
49 - 3.3 PRECISION OF SAMPLE PREPARATION
49 - 3.4 BIAS IN SAMPLE PREPARATION
49 - 3.5 PREPARATION OF SAMPLES FOR THE DETERMINATION OF TOTAL MOISTURE
49 - 3.5.1 Types of samples to be tested
49 - 3.5.2 Precautions against loss of moisture
50 - 3.5.3 As-received samples
50 - 3.5.4 Sample preparation procedure
51 - 3.5.5 Reserve samples
51 - 3.6 PREPARATION OF SAMPLES FOR GENERAL ANALYSIS
51 - 3.6.1 General
51 - 3.6.2 Procedure
53 - 3.7 PREPARATION OF SAMPLES FOR SPECIAL ANALYSES
53 - 3.7.1 General
54 - 3.7.2 Sample preparation for size analysis
54 - 3.7.3 Sample preparation for float- and-sink analysis
55 - 3.7.4 Sample preparation for abrasion index
56 - 3.7.5 Sample preparation for Hardgrove grindability index
56 - 3.7.6 Sample preparation for the Gieseler plastometer test
56 - 3.7.7 Sample preparation for pilot coke oven tests
56 - 3.7.8 Sample preparation for petrographic analysis
56 - 3.7.9 Sample preparation for dilatometer test
56 - 3.7.10 Sample preparation for trace element analysis
58 - APPENDIX A - MANUAL SAMPLING IMPLEMENTS
58 - A1 SCOPE
58 - A2 LADLES AND CUTTERS
59 - A3 SAMPLING FRAME
59 - A4 SHOVELS
60 - A5 SCOOPS
60 - A6 ROTARY SAMPLE DIVIDER
62 - APPENDIX B - MECHANICAL SAMPLING IMPLEMENTS
62 - B1 SCOPE
62 - B2 TYPES OF MECHANICAL SAMPLE CUTTERS
67 - APPENDIX C - DESIGN OF CROSS-BELT CUTTERS
69 - APPENDIX D - PARTICLE SIZE REDUCTION EQUIPMENT
71 - APPENDIX E - EXAMPLES OF MECHANICAL MIXERS

Sets out methods for the sampling of higher rank coal from moving streams and stationary situations, including stopped-belt sampling, for routine and special purposes, to provide samples for general analysis and for the determination of total moisture. Methods for the preparation of samples are also included.

Committee
MN-001
DocumentType
Standard
ISBN
0 7262 9420 9
Pages
67
PublisherName
Standards Australia
Status
Superseded
SupersededBy
Supersedes
UnderRevision

This Standard sets out methods for the sampling of higher rank coal from moving streams and stationary situations, including stopped-belt sampling, for both routine and special purposes, to provide samples for general analysis and for the determination of total moisture.NOTE: Higher rank coal is defined in AS 2096 as coal having a gross specific energy of 21.00 MJ/kg or greater on an ash-free, moist (afm) basis and 27.00 MJ/kg or greater on a dry, ash-free (daf) basis.The provisions of this Standard specifically include stopped-belt sampling. Although this Standard is intended to cover all higher rank coal sampling from moving streams, the procedures recommended may not be applicable in cases of extreme segregation of material, as found with very wet coal owing to moisture run-off, or with very dry coal owing to generation of dust. In such cases, it may be necessary to revert to stopped-belt sampling.Stopped-belt sampling is the reference method against which other sampling procedures are compared.Methods for the preparation of samples are also included in this Standard, and it is recognized that some on-line sampling installations perform part of the sample preparation.Sampling from coal seams is covered in AS 2617, and is excluded from this Standard.

First published as AS CK2.1-1946 (being endorsement of BS 1017-1942 without amendment).
Second edition 1949 (being endorsement of BS 1017-1942 with amendment).
Revised and redesignated in part as AS K153.1-1964 (being endorsement of BS 1017-1960 with amendment).
Second edition 1967.
Revised and redesignated AS 1676-1975.
Revised and redesignated in part as AS 2646.2-1984, AS 2646.4-1984 and AS 2646.6-1984.
AS 2646.1 first published 1984.
AS 1676-1975 withdrawn 1985.
AS 2646.1-1984, AS 2646.2-1984, AS 2646.4-1984 and AS 2646.6-1984 revised, amalgamated and redesignated AS 4264.1-1995.

AS 4156.1-1994 Coal preparation Higher rank coal - Float and sink testing (Reconfirmed 2013)
AS 1152-1993 Specification for test sieves
AS 2137-1981 Hard coal - Determination of plastic properties by the Gieseler plastometer
AS 2617-1996 Sampling from coal seams (Reconfirmed 2013)
AS 1681-1974 Electrically-heated ovens in which flammable volatiles occur - Type 1 ovens - Metric Units
AS 1038.19-1989 Coal and coke - Analysis and testing - Determination of the abrasion index of higher rank coal
AS 1038.20-1992 Coal and coke - Analysis and testing Higher rank coal - Hardgrove grindability index
AS 2061-1989 Preparation of coal samples for incident light microscopy
AS 1038.1-1992 Coal and coke - Analysis and testing Higher rank coal - Total moisture
AS 1038.12.3-1993 Coal and coke - Analysis and testing Higher rank coal - Caking and coking properties - Dilatation
AS 3881-1991 Higher rank coal - Size analysis
AS 2267-1997 Guide to the conduct of pilot coke oven tests (Reconfirmed 2013) (Reconfirmed 2023)
AS 2418-1995 Coal and coke - Glossary of terms (Reconfirmed 2013) (Reconfirmed 2023)
AS 2096-1987 Classification and coding systems for Australian coals (Reconfirmed 2013) (Reconfirmed 2023)

AS 1038.8.2-2003 Coal and coke - Analysis and testing Coal and coke - Chlorine - High-temperature combustion method (Reconfirmed 2013)
AS 1038.9.2-2000 Coal and coke - Analysis and testing Higher rank coal - Phosphorus - Coal extraction/ phosphomolybdovanadate method (Reconfirmed 2013) (Reconfirmed 2023)
AS 1038.6.1-1997 Coal and coke - Analysis and testing Higher rank coal and coke - Ultimate analysis - Carbon and hydrogen (Reconfirmed 2013)
AS 2856.1-2000 Coal petrography Preparation of coal samples for incident light microscopy (Reconfirmed 2013) (Reconfirmed 2023)
AS 1038.11-2002 Coal and coke - Analysis and testing Coal - Forms of sulfur (Reconfirmed 2013)
AS 2267-1997 Guide to the conduct of pilot coke oven tests (Reconfirmed 2013) (Reconfirmed 2023)
AS 4264.3-1996 Coal and coke - Sampling Lower rank coal - Sampling procedures
AS 1038.9.4-2006 Coal and coke - Analysis and testing Higher rank coal - Phosphorus - Borate fusion/molybdenum blue method
AS 1038.25-2002 Coal and coke - Analysis and testing Coal - Durham cone handleability test (Reconfirmed 2013) (Reconfirmed 2023)
AS 1038.16-2005 Coal and coke - Analysis and testing Assessment and reporting of results (Reconfirmed 2016)
AS 1038.21.1.2-2002 Coal and coke - Analysis and testing Higher rank coal and coke - Relative density - Analysis sample/volumetric method (Reconfirmed 2013) (Reconfirmed 2023)
AS 1038.9.3-2000 Coal and coke - Analysis and testing Coal and coke - Phosphorus - Ash digestion/phosphomolybdovanadate method (Reconfirmed 2013)
AS 3881-2002 Higher rank coal - Size analysis
AS 1038.6.3.2-1997 Coal and coke - Analysis and testing Higher rank coal and coke - Ultimate analysis - Total sulfur - High-temperature combustion method
AS 1038.10.1-2003 Coal and coke - Analysis and testing Determination of trace elements - Coal, coke and fly-ash - Determination of eleven trace elements - Flame atomic absorption spectrometric method (Reconfirmed 2013)
AS 1038.6.3.2-2003 Coal and coke - Analysis and testing Higher rank coal and coke - Ultimate analysis - Total sulfur - High-temperature combustion method (Reconfirmed 2013)
AS 1038.6.4-2005 Coal and coke - Analysis and testing Higher rank coal and coke - Ultimate analysis - Carbon, hydrogen and nitrogen - Instrumental method
AS 1038.10.3-1998 Coal and coke - Analysis and testing Determination of trace elements - Coal and coke - Determination of boron content - ICP-AES method (Reconfirmed 2013) (Reconfirmed 2023)
AS 1038.21.1.1-2002 Coal and coke - Analysis and testing Higher rank coal and coke - Relative density - Analysis sample/density bottle method
AS 1038.8.2-1996 Coal and coke - Analysis and testing Coal and coke - Chlorine - High-temperature combustion method
AS 1038.24-1998 Coal and coke - Analysis and testing Guide to the evaluation of measurements made by on-line coal analysers (Reconfirmed 2013) (Reconfirmed 2023)
AS 1038.12.4.2-1996 Coal and coke - Analysis and testing Higher rank coal - Caking and coking properties - Plasticity - Discontinuous-torque Gieseler method
AS 2617-1996 Sampling from coal seams (Reconfirmed 2013)
AS 1038.8.1-1999 Coal and coke - Analysis and testing Coal and coke - Chlorine - Eschka method (Reconfirmed 2013)
AS 1038.6.2-2007 Coal and coke - Analysis and testing Higher rank coal and coke - Ultimate analysis - Nitrogen (Reconfirmed 2017)
AS 1038.16-1996 Coal and coke - Analysis and testing - Assessment and reporting of results
AS 1038.12.3-2002 Coal and coke - Analysis and testing Higher rank coal - Caking and coking properties - Dilatation
AS 4264.5-1999 Coal and coke - Sampling - Guide to the inspection of mechanical sampling systems
AS 1038.6.2-1997 Coal and coke - Analysis and testing Higher rank coal and coke - Ultimate analysis - Nitrogen
AS 3899-2002 Higher rank coal and coke - Bulk density (Reconfirmed 2013) (Reconfirmed 2023)
AS 1038.23-2002 Coal and coke - Analysis and testing Higher rank coal and coke - Carbonate carbon (Reconfirmed 2013)
AS 1038.9.1-2000 Coal and coke - Analysis and testing Higher rank coal and coke - Phosphorus - Ash digestion/molybdenum blue method (Reconfirmed 2013)
AS 1038.5-1998 Coal and coke - Analysis and testing - Gross calorific value
AS 4156.2.2-1998 Coal preparation Higher rank coal - Froth flotation - Sequential procedure (Reconfirmed 2013)
AS 4264.4-1996 Coal and coke - Sampling - Determination of precision and bias
AS 1038.3-2000 Coal and coke - Analysis and testing - Proximate analysis of higher rank coal
AS 1038.1-2001 Coal and coke - Analysis and testing Higher rank coal - Total moisture
AS 1038.10.5.1-2003 Coal and coke - Analysis and testing Coal, coke and fly-ash - Trace elements - Determination of mercury content - Tube combustion method (Reconfirmed 2013) (Reconfirmed 2023)
AS 1038.22-2000 Coal and coke - Analysis and testing Higher rank coal - Mineral matter and water of constitution (Reconfirmed 2013) (Reconfirmed 2023)
AS 1038.10.2-1998 Coal and coke - Analysis and testing Determination of trace elements - Coal and coke - Determination of arsenic, antimony and selenium - Hydride generation method (Reconfirmed 2013) (Reconfirmed 2023)
AS 1038.21.1.1-2008 Coal and coke - Analysis and testing Higher rank coal and coke - Relative density - Analysis sample/density bottle method
AS 1038.12.1-2002 Coal and coke - Analysis and testing Higher rank coal - Caking and coking properties - Crucible swelling number
AS 4156.2.1-2004 Coal preparation Higher rank coal - Froth flotation - Basic test
AS 1038.12.4.1-1996 Coal and coke - Analysis and testing Higher rank coal - Caking and coking properties - Plasticity - Continuous-torque Gieseler method
AS 1038.20-2002 Coal and coke - Analysis and testing Higher rank coal - Hardgrove grindability index (Reconfirmed 2013)
AS 2418-1995 Coal and coke - Glossary of terms (Reconfirmed 2013) (Reconfirmed 2023)
AS 1038.10.5.2-2007 Coal and coke - Analysis and testing Coal and fly-ash - Trace elements - Determination of mercury content - Acid extraction method (Reconfirmed 2017)
AS 4156.7-1999 Coal preparation Coal size classifying equipment - Performance evaluation (Reconfirmed 2013) (Reconfirmed 2023)
AS 1038.6.3.3-1997 Coal and coke - Analysis and testing Higher rank coal - Ultimate analysis - Total sulfur - Infrared method (Reconfirmed 2013)
AS 1038.6.3.1-1997 Coal and coke - Analysis and testing Higher rank coal and coke - Ultimate analysis - Total sulfur - Eschka method (Reconfirmed 2013)
AS 1038.10.4-2001 Coal and coke - Analysis and testing Determination of trace elements - Coal, coke and fly-ash - Determination of fluorine content - Pyrohydrolysis method (Reconfirmed 2013)

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