EN ISO 14780:2017

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
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
Annex B (informative) - Scheme of sample preparation
        for samples from single delivery
Annex C (informative) - Scheme of sample preparation
        for samples from continuous delivery
Bibliography

ISO 14780:2017 defines 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 defined in this document can 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.