SIST EN 15105:2011

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.LMDFeste Biobrennstoffe - Bestimmung des wasserlöslichen Gehaltes an Chlorid, Natrium und KaliumBiocombustibles solides - Méthodes de détermination de la teneur en chlorure, sodium et potassium solubles dans l'eauSolid biofuels - Determination of the water soluble chloride, sodium and potassium content75.160.10Trda gorivaSolid fuelsICS:Ta slovenski standard je istoveten z:EN 15105:2011SIST EN 15105:2011en,de01-april-2011SIST EN 15105:2011SLOVENSKI
STANDARDSIST-TS CEN/TS 15105:20051DGRPHãþD



SIST EN 15105:2011



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15105
February 2011 ICS 75.160.10 Supersedes CEN/TS 15105:2005English Version
Solid biofuels - Determination of the water soluble chloride, sodium and potassium content
Biocombustibles solides - Méthodes de détermination de la teneur en chlorure, sodium et potassium solubles dans l'eau
Feste Biobrennstoffe - Bestimmung des wasserlöslichen Gehaltes an Chlorid, Natrium und Kalium This European Standard was approved by CEN on 25 December 2010.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, 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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B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15105:2011: ESIST EN 15105:2011



EN 15105:2011 (E) 2 Contents Page Foreword .3Introduction .41Scope .52Normative references .53Terms and definitions .54Principle .55Reagents .66Apparatus .67Preparation of the test sample .68Procedure .68.1Extraction .68.2Detection methods.78.2.1General .78.2.2Methods for the determination of chloride concentration.78.2.3Methods for the determination of sodium and potassium concentration .78.3Blank test .79Calculation .810Performance characteristics .811Test report .8Annex A (informative)
Performance data .9Bibliography . 11 SIST EN 15105:2011



EN 15105:2011 (E) 3 Foreword This document (EN 15105:2011) has been prepared by Technical Committee CEN/TC 335 “Solid biofuels”, the secretariat of which is held by SIS. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2011, and conflicting national standards shall be withdrawn at the latest by August 2011. This document supersedes CEN/TS 15105:2005. In the pre-normative project BIONORM I&II a robustness test has been performed to find out if all critical parameters in the standard were addressed. Based on the results of that test it has been concluded that all critical parameters were covered. Only minor technical changes were necessary which have been implemented in the revised text. The revision also includes a change of deliverable from Technical Specification to European Standard and updated normative references. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, 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.
SIST EN 15105:2011



EN 15105:2011 (E) 4 Introduction The elements chlorine, sodium and potassium are present in solid biofuels. They can contribute significantly to utilisation problems such as corrosion, fouling and slagging in furnaces. Also they affect the gaseous emissions from the thermal processes. The chlorine content in solid biofuels is mainly present as water soluble inorganic salts such as sodium and potassium chlorides or other ion-exchangeable forms. Determination of the water soluble chloride content is thus an alternative and simple method to achieve information of the level of chlorine in solid biofuels. The content of water soluble chloride shall however not be mistaken for the total content of chlorine in the fuels. In solid biofuels sodium and potassium can be present as both minerals and salts. The salts of these elements are extractable with water and are readily volatile during thermal conversion. By determination of the water soluble content of sodium and potassium an estimate of the aggressive content of the elements in relation to potential slagging and fouling problems can be achieved. For some biofuels, such as straw, experience has shown that the water soluble content of sodium and potassium correspond to the total content of the elements. The content of water soluble sodium and potassium shall not be mistaken for the total content of the elements. SIST EN 15105:2011



EN 15105:2011 (E) 5 1 Scope This European Standard specifies a method for the determination of the water soluble chloride, sodium and potassium content in solid biofuels by extraction with water in a closed container and their following quantification by different analytical techniques. 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 14588:2010, Solid biofuels  Terminology, definitions and descriptions EN 14774-3, Solid biofuels  Determination of moisture content  Oven dry method  Part 3: Moisture in general analysis sample FprEN 14780, Solid biofuels  Sample preparation EN 15296, Solid biofuels  Conversion of analytical results from one basis to another EN ISO 10304-1, Water quality  Determination of dissolved anions by liquid chromatography of ions  Part 1: Determination of bromide, chloride, fluoride, nitrate, nitrite, phosphate and sulphate (ISO 10304-1:2007) EN ISO 11885, Water quality  Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES) (ISO 11885:2007) ISO 9964-1, Water quality  Determination of sodium and potassium  Part 1: Determination of sodium by atomic absorption spectrometry ISO 9964-2, Water quality  Determination of sodium and potassium  Part 2: Determination of potassium by atomic absorption spectrometry ISO 9964-3, Water quality  Determination of sodium and potassium  Part 3: Determination of sodium and potassium by flame emission spectrometry 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 14588:2010 and the following apply. 3.1 water soluble content of chloride, sodium and potassium amount of the elements chloride, sodium and potassium which can be extracted with water using th
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