BS ISO 3082:2017
$215.11
Iron ores. Sampling and sample preparation procedures
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 96 |
This document provides
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the underlying theory,
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the basic principles for sampling and preparation of samples, and
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the basic requirements for the design, installation and operation of sampling systems
for mechanical sampling, manual sampling and preparation of samples taken from a lot under transfer. This is in order to determine the chemical composition, moisture content, size distribution and other physical and metallurgical properties of the lot, except bulk density obtained using ISO 3852 (Method 2).
The methods specified in this document are applicable to both the loading and discharging of a lot by means of belt conveyors and other ore-handling equipment to which a mechanical sampler can be installed or where manual sampling can safely be conducted.
The methods are applicable to all iron ores, whether natural or processed (e.g. concentrates and agglomerates, such as pellets or sinters).
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 8 | Foreword |
| 11 | 1 Scope 2 Normative references |
| 12 | 3 Terms and definitions |
| 14 | 4 General considerations for sampling and sample preparation 4.1 Basic requirements 4.2 Establishing a sampling scheme |
| 15 | 4.3 System verification |
| 16 | 5 Fundamentals of sampling and sample preparation 5.1 Minimization of bias 5.1.1 General 5.1.2 Minimization of particle size degradation 5.1.3 Extraction of increments |
| 17 | 5.1.4 Increment mass |
| 18 | 5.2 Overall precision |
| 20 | 5.3 Quality variation |
| 21 | 5.4 Sampling precision and number of primary increments 5.4.1 Mass-basis sampling 5.4.2 Time-basis sampling |
| 22 | 5.5 Precision of sample preparation and overall precision 5.5.1 General |
| 23 | 5.5.2 Preparation and measurement of gross sample 5.5.3 Preparation and measurement of partial samples 5.5.4 Preparation and measurement of each increment |
| 24 | 6 Methods of sampling 6.1 Mass-basis sampling 6.1.1 Mass of increment 6.1.2 Quality variation |
| 25 | 6.1.3 Number of primary increments 6.1.4 Sampling interval 6.1.5 Methods of taking increments 6.2 Time-basis sampling 6.2.1 Mass of increment 6.2.2 Quality variation |
| 26 | 6.2.3 Number of increments 6.2.4 Sampling interval 6.2.5 Methods of taking increments 6.3 Stratified random sampling within fixed mass or time intervals 6.3.1 General |
| 27 | 6.3.2 Fixed mass intervals 6.3.3 Fixed time intervals 7 Sampling from moving streams 7.1 General 7.2 Safety of operations |
| 28 | 7.3 Robustness of sampling installation 7.4 Versatility of sampling system 7.5 Primary samplers 7.5.1 Location 7.5.2 Types of primary sampler |
| 29 | 7.5.3 General design criteria for primary cutters |
| 33 | 7.5.4 Cutter aperture of primary sampler 7.5.5 Cutter speed of primary sampler |
| 34 | 7.6 Secondary and subsequent samplers 7.7 Online sample preparation 7.7.1 Arrangement for sample preparation 7.7.2 Crushers 7.7.3 Dividers |
| 35 | 7.7.4 Dryers 7.8 Checking precision and bias 7.9 Cleaning and maintenance |
| 38 | 7.10 Example of a flowsheet |
| 40 | 8 Sampling from stationary situations 8.1 General 8.2 Sampling from trucks and wagons 8.2.1 General 8.2.2 Sampling devices |
| 41 | 8.2.3 Number of primary increments 8.2.4 Method of sampling 8.3 Sampling from ships, stockpiles and bunkers 9 Stopped-belt reference sampling |
| 42 | 10 Sample preparation 10.1 Fundamentals 10.1.1 General |
| 43 | 10.1.2 Drying 10.1.3 Crushing and grinding 10.1.4 Mixing |
| 44 | 10.1.5 Division |
| 45 | 10.1.6 Mass of divided sample |
| 47 | 10.1.7 Split use and multiple use of sample |
| 49 | 10.2 Method of constituting partial samples or a gross sample 10.2.1 General 10.2.2 Method of constitution for mass-basis sampling 10.2.3 Method of constitution for time-basis sampling |
| 50 | 10.2.4 Special procedure for moisture content 10.3 Mechanical methods of division 10.3.1 Mechanical increment division |
| 51 | 10.3.2 Other mechanical division methods |
| 52 | 10.4 Manual methods of division 10.4.1 General 10.4.2 Manual increment-division method |
| 54 | 10.4.3 Manual strip-division method |
| 56 | 10.4.4 Manual riffle-division method |
| 57 | 10.5 Preparation of test samples for chemical analysis 10.5.1 Mass and particle size |
| 60 | 10.5.2 Preparation to 250 µm nominal top size 10.5.3 Final preparation 10.5.4 Grinding to 100 µm or 160 µm nominal top size |
| 61 | 10.5.5 Distribution of samples for chemical analysis 10.6 Preparation of test samples for moisture determination |
| 62 | 10.7 Preparation of test samples for size determination 10.8 Preparation of test samples for physical testing 10.8.1 Selection of sample preparation procedure |
| 64 | 10.8.2 Extraction of test samples |
| 69 | 10.8.3 Reserve samples |
| 71 | 11 Packing and marking of samples |
| 72 | Annex A (informative) Inspection of mechanical sampling systems |
| 79 | Annex B (normative) Formulae for number of increments |
| 82 | Annex C (informative) Alternative methods of taking the reference sample |
| 88 | Annex D (normative) Procedure for determining the minimum mass of divided gross sample for size determination using other mechanical division methods |
| 91 | Annex E (normative) Riffle dividers |
| 93 | Bibliography |
