SIST-TS CEN/TS 15297:2006

SLOVENSKI STANDARD
SIST-TS CEN/TS 15297:2006
01-maj-2006
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Solid Biofuels - Determination of minor elements
Feste Biobrennstoffe - Bestimmung von Spurenelementen
Biocombustibles solides - Détermination des éléments mineurs
Ta slovenski standard je istoveten z: CEN/TS 15297:2006
ICS:
75.160.10 Trda goriva Solid fuels
SIST-TS CEN/TS 15297:2006 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TS CEN/TS 15297:2006

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SIST-TS CEN/TS 15297:2006
TECHNICAL SPECIFICATION
CEN/TS 15297
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
March 2006
ICS 75.160.10

English Version
Solid Biofuels - Determination of minor elements
Biocombustibles solides - Détermination des éléments Feste Biobrennstoffe - Bestimmung von Spurenelementen
mineurs
This Technical Specification (CEN/TS) was approved by CEN on 22 November 2005 for provisional application.
The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their
comments, particularly on the question whether the CEN/TS can be converted into a European Standard.
CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available
promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)
until the final decision about the possible conversion of the CEN/TS into an EN is reached.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 15297:2006: E
worldwide for CEN national Members.

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SIST-TS CEN/TS 15297:2006
CEN/TS 15297:2006 (E)
Contents Page
Foreword.3
Introduction .4
1 Scope .5
2 Normative references .5
3 Terms and definitions .5
4 Symbols and abbreviations .5
5 Principle.6
6 Reagents.6
7 Apparatus .7
8 Preparation of the test sample .7
9 Digestion.7
10 Detection methods.8
11 Calculations.8
12 Precision of the method.9
13 Test Report.9
Bibliography .10



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Foreword
This Technical Specification (CEN/TS 15297:2006) has been prepared by Technical Committee CEN/TC 335
“Solid biofuels”, the secretariat of which is held by SIS.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to announce this CEN Technical Specification: Austria, Belgium, Cyprus, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.
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Introduction
The minor elements present in solid biofuels can in some cases be of environmental concern, e.g. it has been
shown that certain energy crops will concentrate cadmium and in polluted areas other toxic elements may be
found at elevated concentrations in the biofuels. This can be a problem if for example the ash from the
combustion is to be put back in the forest as a fertilizer. Trace elements in biofuels are often present at very
low concentrations requiring great care to avoid contamination in the sample preparation and decomposition
steps. The typical concentrations of minor elements in solid biofuels can be found in CEN/TS 14961. In this
technical specification wet chemical methods are described. Alternative methods such as X-ray fluorescence
(XRF) or direct mercury analysers may be used when validated with suitable materials (biomass reference
materials)
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1 Scope
This Technical Specification is intended for determination of the minor elements Arsenic, Cadmium, Cobalt,
Chromium, Copper, Mercury, Manganese, Molybdenum, Nickel, Lead, Antimony, Vanadium and Zinc in all
solid biofuels. Further it describes methods for sample decomposition and suggests suitable instrumental
methods for the determination of the elements of interest in the digests. The determination of Selenium, Tin
and Thallium is also possible with the method described in this Technical Specification.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 12338, Water quality – Determination of mercury – Enrichment methods by amalgamation
CEN/TS 14588:2003, Solid biofuels – Terminology, definitions and descriptions
CEN/TS 14780, Solid biofuels – Methods for sample preparation
EN ISO 11885, Water quality – Determination of 33 elements by inductively coupled plasma atomic emission
spectroscopy (ISO 11885:1996)
EN ISO 11969, Water quality – Determination of arsenic – Atomic absorption spectrometric method (hydride
technique) (ISO 11969:1996)
EN ISO 17294-2, Water quality – Application of inductively coupled plasma mass spectrometry (ICP-MS) –
Part 2: Determination of 62 elements (ISO 17294-2:2003)
3 Terms and definitions
For the purposes of this Technical Specification, the terms and definitions given in CEN/TS 14588:2003 apply.
4 Symbols and abbreviations
4.1 Symbols
As Arsenic
Cd Cadmium
Co Cobalt
Cr Chromium
Cu Copper
Hg Mercury
Mn Manganese
Mo Molybdenum
Ni Nickel
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Pb Lead
Sb Antimony
V Vanadium
Zn Zinc

4.2 Abbreviations
CV-AAS Cold vapour atomic absorption spectroscopy
GF-AAS Graphite
...