ISO 21644:2021
Solid recovered fuels — Methods for the determination of biomass content
This document specifies three methods for the determination of the biomass content in solid recovered fuels: the 14C content method, the selective dissolution and the manual sorting methods.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Principle
6 Determination of biomass content
6.1 Sampling
6.2 Sample preparation
6.3 Applicable methods
7 Expression of results
8 Performance characteristics
9 Test report
Annex A (normative) Determination of the biomass content based on the 14C method
Annex B (normative) Determination of biomass content using the selective dissolution method (SDM)
Annex C (normative) Determination of biomass content using the manual sorting method (Msort)
Annex D (informative) Limitations of the determination methods
Annex E (informative) Performance data
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Principle
6 Determination of biomass content
6.1 Sampling
6.2 Sample preparation
6.3 Applicable methods
7 Expression of results
8 Performance characteristics
9 Test report
Annex A (normative) Determination of the biomass content based on the 14C method
Annex B (normative) Determination of biomass content using the selective dissolution method (SDM)
Annex C (normative) Determination of biomass content using the manual sorting method (Msort)
Annex D (informative) Limitations of the determination methods
Annex E (informative) Performance data
Bibliography