EN 14780:2011

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Principles of correct sample reduction
6 Apparatus
7 Sample reduction - general principles
8 Methods for sample division
9 Method for reducing laboratory samples to sub-samples
   and general analysis samples
10 Storage and labelling
11 Performance characteristics
Annex A (informative) - Precision in relation to division
        method
Bibliography

This European Standard describes methods for reducing combined samples (or increments) to laboratory samples and laboratory samples to sub-samples and general analysis samples and is applicable to solid biofuels.The methods described in this European Standard may be used for sample preparation, for example, when the samples are to be tested for calorific value, moisture content, ash content, bulk density, durability, particle size distribution, ash melting behaviour, chemical composition, and impurities. The methods are not intended to be applied to the very large samples required for the testing of bridging properties.