BS ISO 13909-5:2001:2008 Edition
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Hard coal and coke. Mechanical sampling – Coke. Sampling from moving streams
Published By | Publication Date | Number of Pages |
BSI | 2008 | 36 |
PDF Catalog
PDF Pages | PDF Title |
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3 | Hard coal and coke�— Mechanical sampling�— |
5 | Contents Page |
6 | Foreword |
7 | Hard coal and coke�— Mechanical sampling�— 1��� Scope 2��� Normative references 3��� Terms and definitions 4��� Establishing a sampling scheme 4.1��� General |
8 | 4.2��� Design of the sampling scheme 4.2.1��� Material to be sampled 4.2.2��� Parameters to be determined on samples 4.2.3��� Division of lots 4.2.4��� Basis of sampling |
9 | 4.2.5��� Precision of results 4.2.6��� Bias of results 4.3��� Precision of sampling 4.3.1��� Precision and total variance |
10 | 4.3.2��� Primary increment variance 4.3.3��� Preparation and testing variance |
11 | 4.3.4��� Number of sub-lots and number of increments in each sub-lot 4.3.4.1��� General |
12 | 4.3.4.2��� Moisture sample 4.3.4.3��� Physical sample 4.4��� Minimum mass of sample |
13 | 4.5��� Mass of primary increment |
14 | 5��� Methods of sampling 5.1��� General 5.2��� Time-basis sampling 5.2.1��� Method of taking primary increments |
15 | 5.2.2��� Sampling interval 5.2.3��� Mass of increment 5.3��� Mass-basis sampling 5.3.1��� Method of taking primary increments 5.3.2��� Sampling interval |
16 | 5.3.3��� Mass of increment 5.4��� Stratified random sampling 5.4.1��� General 5.4.2��� Time-basis stratified random sampling 5.4.3��� Mass-basis stratified random sampling |
17 | 5.5��� Reference sampling 6��� Design of mechanical samplers 6.1��� Safety 6.2��� Sampling scheme 6.2.1��� General 6.2.2��� Checking for precision and bias |
18 | 6.2.3��� Operation of sampler 6.3��� Location of sampling equipment 6.4��� General requirements for designing mechanical samplers |
19 | 6.5��� Design of falling-stream-type samplers 6.5.1��� General |
22 | 6.5.2��� Cutter velocity 6.6��� Cross-belt-type primary samplers 6.6.1��� Operation |
24 | 6.6.2��� Design of cross-belt samplers |
25 | 6.6.3��� Maintenance of sampling equipment 7��� Handling and storage of samples |
26 | 8��� Sample preparation 9��� Minimization of bias 9.1��� General 9.2��� Location of increments 9.3��� Unrepresentative increments 9.4��� Preservation of integrity of sample 9.4.1��� General |
27 | 9.4.2��� Precautions to reduce bias 10��� Verification |
28 | Examples of calculations of the number of sub-lots and number of increments per sub-lot for movin… A.1��� Example�1 A.2��� Example�2 |
29 | A.3��� Example�3 |
30 | Evaluation of sampling equipment for mass-basis sampling B.1��� General |
31 | B.2��� Coefficient of variation of increment masses |
32 | B.3��� Correlation between increment mass and flow rate |
34 | Guidance on the operation of mechanical samplers |
35 | Bibliography |