BS ISO 13909-3:2016
$142.49
Hard coal and coke. Mechanical sampling – Coal. Sampling from stationary lots
| Published By | Publication Date | Number of Pages |
| BSI | 2016 | 28 |
This part of ISO 13909 specifies procedures for the mechanical sampling of coal from stationary lots, for example, from wagons, barges, ships and stockpiles. These procedures are to be used when it is not possible to sample the lots during loading or discharge according to ISO 13909‑2 . Procedures for sample preparation are given in ISO 13909‑4 .
This part of ISO 13909 is applicable to mechanical sampling from stationary coal lots, to obtain samples from which test samples for the determination of moisture, and for general analysis including physical and chemical tests, can be prepared in accordance with the requirements and recommendations set out in ISO 13909‑4 .
In this part of ISO 13909 , the principles and procedures for designing a sampling scheme are given, together with typical examples of applications; in addition, practices for the execution of sampling in different sampling situations are described. The methods described are limited to those on which it is possible to conduct a test for bias.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | Foreword |
| 7 | 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 Division of lots 4.2.3 Precision of sampling |
| 9 | 4.2.4 Bias of sampling 4.3 Precision of results 4.3.1 Precision and total variance |
| 10 | 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 |
| 12 | 4.4 Minimum mass of sample |
| 14 | 4.5 Mass of primary increment |
| 15 | 4.6 Size analysis |
| 16 | 5 Methods of sampling from wagons, barges and ships 5.1 General 5.2 Number of increments and sub-lots 5.2.1 General analysis and moisture samples 5.2.2 Common sample |
| 17 | 5.3 Taking the increments 5.4 Distribution of increments 5.4.1 Wagons 5.4.2 Barges 5.4.3 Ships 5.4.4 Random selection of increments |
| 18 | 6 Methods of sampling from stockpiles |
| 19 | 7 Sampling equipment — mechanical auger |
| 21 | 8 Handling and storage of samples |
| 22 | 9 Sample preparation 10 Minimization of bias 10.1 Causes of bias 10.2 Checking for precision and bias |
| 23 | 11 Verification |
| 24 | Bibliography |
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BS ISO 13909-3:2016 – TC:2020 Edition
Tracked Changes. Hard coal and coke. Mechanical sampling – Coal. Sampling from stationary lots Published…
