BS ISO 13909-2:2016 – TC:2020 Edition
$217.84
Tracked Changes. Hard coal and coke. Mechanical sampling – Coal. Sampling from moving streams
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 96 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 61 | Foreword |
| 63 | 1 Scope 2 Normative references 3 Terms and definitions 4 Establishing a sampling scheme 4.1 General |
| 64 | 4.2 Design of the sampling scheme 4.2.1 Material to be sampled 4.2.2 Division of lots 4.2.3 Basis of sampling 4.2.4 Precision of sampling |
| 65 | 4.2.5 Bias of sampling 4.3 Precision of results 4.3.1 Precision and total variance |
| 66 | 4.3.2 Primary increment variance 4.3.3 Preparation and testing variance 4.3.4 Number of sub-lots and number of increments per sub-lot |
| 69 | 4.4 Minimum mass of sample |
| 71 | 4.5 Mass of primary increment 4.6 Size analysis |
| 72 | 5 Methods of sampling 5.1 General |
| 73 | 5.2 Time-basis sampling 5.2.1 Method of taking primary increments 5.2.2 Sampling interval 5.2.3 Mass of increment 5.3 Mass-basis sampling 5.3.1 Method of taking primary increments |
| 74 | 5.3.2 Sampling interval 5.3.3 Mass of increment 5.4 Stratified random sampling 5.4.1 General |
| 75 | 5.4.2 Time-basis stratified random sampling 5.4.3 Mass-basis stratified random sampling 5.5 Reference sampling 6 Design of mechanical samplers 6.1 Safety 6.2 Information 6.3 Basic requirements |
| 76 | 6.4 Location of sampling equipment 6.5 Provision for checking precision 6.6 Provision for testing for bias 6.7 General requirements for designing mechanical samplers 6.8 Design of falling-stream-type samplers 6.8.1 General |
| 77 | 6.8.2 Cutter velocity |
| 79 | 6.9 Cross-belt-type primary samplers 6.9.1 Operation |
| 82 | 6.9.2 Design of cross-belt samplers |
| 83 | 6.10 Maintenance and checking of sampling equipment |
| 84 | 7 Handling and storage of samples |
| 85 | 8 Sample preparation 9 Bias 9.1 Minimization of bias |
| 86 | 9.2 Checking for precision and bias 10 Verification |
| 87 | Annex A (normative) Evaluation of sampling equipment for mass-basis sampling |
| 92 | Bibliography |
