Solid recovered fuels - Sample preparation (ISO 21646:2022)
This document specifies methods for sample preparation to ensure representativeness of the samples
throughout the preparation procedures to produce general analysis samples. Suitable test portions can
be taken from the laboratory or general analysis samples and used for analysis according to the specific
requirements defined in the corresponding analytical procedures.
This document specifies the correct sample preparation sequence to be applied to:
a) the composite sample, in order to produce a laboratory sample (taking into account large pieces of
solid recovered fuel);
b) each sub-sampling step throughout the testing programme;
c) the laboratory sample, in order to obtain suitable test portions;
d) ensure the representativeness of the test portions that have been taken according to the sample
preparation plan, prior to physical analysis, chemical analysis or both (e.g. extractions, digestion,
analytical determinations).
The methods specified in this document can be used for sample preparation, for example, when the
samples are to be tested for bulk density, biomass content determination, mechanical durability,
particle size distribution, moisture content, ash content, ash melting behaviour, calorific value, chemical
composition, impurities and self-heating properties. The methods are not intended to be applied to the
very large samples required for the testing of bridging propertie
ΚΩΔΙΚΟΣ ΠΡΟΪΟΝΤΟΣ:
CYS EN ISO 21646:2022
This document specifies methods for sample preparation to ensure representativeness of the samples
throughout the preparation procedures to produce general analysis samples. Suitable test portions can
be taken from the laboratory or general analysis samples and used for analysis according to the specific
requirements defined in the corresponding analytical procedures.
This document specifies the correct sample preparation sequence to be applied to:
a) the composite sample, in order to produce a laboratory sample (taking into account large pieces of
solid recovered fuel);
b) each sub-sampling step throughout the testing programme;
c) the laboratory sample, in order to obtain suitable test portions;
d) ensure the representativeness of the test portions that have been taken according to the sample
preparation plan, prior to physical analysis, chemical analysis or both (e.g. extractions, digestion,
analytical determinations).
The methods specified in this document can be used for sample preparation, for example, when the
samples are to be tested for bulk density, biomass content determination, mechanical durability,
particle size distribution, moisture content, ash content, ash melting behaviour, calorific value, chemical
composition, impurities and self-heating properties. The methods are not intended to be applied to the
very large samples required for the testing of bridging propertie