SIST EN 14774-1:2010
(Main)Solid biofuels - Methods for determination of moisture content - Oven dry method - Part 1: Total moisture - Reference method
Solid biofuels - Methods for determination of moisture content - Oven dry method - Part 1: Total moisture - Reference method
This European Standard describes the method of determining the total moisture content of a sample of solid biofuels by drying in an oven and should be used when high precision of the determination of moisture content is necessary. The method described in this document is applicable to all solid biofuels.
The total moisture content of biofuels is not an absolute value and conditions for its determination have to be standardised to enable comparative determinations to be made. NOTE The term moisture content when used with biomass materials can be misleading since untreated biomass frequently contains varying amounts of volatile compounds (extractives) which may evaporate when determining moisture content by oven drying (see Bibliography).
Feste Biobrennstoffe - Verfahren zur Bestimmung des Wassergehaltes - Verfahren der Ofentrocknung - Teil 1: Gehalt an Gesamtwasser - Referenzverfahren
Diese Europäische Norm legt ein Verfahren zur Bestimmung des Gesamtgehaltes an Wasser einer Probe aus festem Biobrennstoff durch Trocknen in einem Ofen fest und sollte angewendet werden, wenn eine hohe Präzision der Bestimmung des Wassergehaltes erforderlich ist. Das in diesem Dokument festgelegte Verfahren gilt für alle festen Biobrennstoffe.
Der Wassergehalt von Biobrennstoffen ist kein absoluter Wert, und die Bedingungen für seine Bestimmung müssen genormt sein, um die Durchführung vergleichbarer Bestimmungen zu ermöglichen.
ANMERKUNG Der Begriff Wassergehalt kann bei der Anwendung im Zusammenhang mit Biomasse Materialien irreführend sein, weil unbehandelte Biomasse oft unterschiedliche Mengen an flüchtigen Verbindungen (Extraktstoffen) enthält, die bei der Bestimmung des Wassergehaltes durch Ofentrocknung verdampfen können (siehe Literaturhinweise).
Biocombustibles solides - Méthode de détermination du taux d'humidité - Méthode par séchage à l'étuve - Partie 1 : humidité totale - Méthode de référence
La présente Norme européenne décrit la méthode de détermination de la teneur en humidité totale d’un échantillon de biocombustibles solides par séchage à l’étuve. Il convient de l’utiliser lorsqu’il est nécessaire de déterminer la teneur en humidité avec une précision élevée. La méthode décrite dans le présent document est applicable à tous les biocombustibles solides.
La teneur en humidité totale des biocombustibles n’est pas une valeur absolue et il est nécessaire de normaliser les conditions de sa détermination afin de permettre la réalisation de déterminations comparables.
NOTE Lorsqu’il est employé dans un contexte de matériaux de biomasse, le terme «teneur en humidité» peut prêter à confusion car la biomasse non traitée contient souvent des quantités variables de composés volatils (extraits) susceptibles de s’évaporer lors de la détermination de la teneur en humidité par séchage à l’étuve (voir Bibliographie).
Trdna biogoriva - Metode določevanja vlage - Metoda sušenja v peči - 1. del: Celotna vlaga - Referenčna metoda
Ta evropski standard opisuje metode določevanja celotne vlage vzorca trdnih biogoriv s sušenjem v peči in bi se moral uporabljati, kadar je potrebno zelo natančno določevanje vlage. Metoda, opisana v tem dokumentu, se uporablja za vsa trdna biogoriva. Celotna vlaga biogoriv ni absolutna vrednost in pogoji njenega določevanja morajo biti standardizirani, da bi omogočali izvedbo primerjalnega določevanja.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Feste Biobrennstoffe - Verfahren zur Bestimmung des Wassergehaltes - Verfahren der Ofentrocknung - Teil 1: Gehalt an Gesamtwasser - ReferenzverfahrenBiocombustibles solides - Méthode de détermination du taux d'humidité - Méthode par séchage à l'étuve - Partie 1 : humidité totale - Méthode de référenceSolid biofuels - Methods for determination of moisture content - Oven dry method - Part 1: Total moisture - Reference method75.160.10Trda gorivaSolid fuelsICS:Ta slovenski standard je istoveten z:EN 14774-1:2009SIST EN 14774-1:2010en,fr,de01-januar-2010SIST EN 14774-1:2010SLOVENSKI
STANDARDSIST-TS CEN/TS 14774-1:20041DGRPHãþD
SIST EN 14774-1:2010
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14774-1
October 2009 ICS 75.160.10 Supersedes CEN/TS 14774-1:2004English Version
Solid biofuels - Determination of moisture content - Oven dry method - Part 1: Total moisture - Reference method
Biocombustibles solides - Détermination de la teneur en humidité - Méthode par séchage à l'étuve - Partie 1: Humidité totale - Méthode de référence
Feste Biobrennstoffe - Bestimmung des Wassergehaltes - Ofentrocknung - Teil 1: Gesamtgehalt an Wasser - Referenzverfahren This European Standard was approved by CEN on 20 September 2009.
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 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 Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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
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Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14774-1:2009: ESIST EN 14774-1:2010
EN 14774-1:2009 (E) 2 Contents Page Foreword .31Scope .42Normative references .43Terms and definitions .44Principle .45Apparatus .46Sample preparation .57Procedure .58Calculation .69Precision .710Test report .7Bibliography .8 SIST EN 14774-1:2010
EN 14774-1:2009 (E) 3 Foreword This document (EN 14774-1:2009) 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 April 2010, and conflicting national standards shall be withdrawn at the latest by April 2010. 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. This document supersedes CEN/TS 14774-1:2004. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). EN 14774 consists of the following parts: EN 14774-1, Solid biofuels – Determination of moisture content – Oven dry method – Part 1: Total moisture – Reference method; EN 14774-2, Solid biofuels – Determination of moisture content – Oven dry method – Part 2: Total moisture – Simplified method; EN 14774-3, Solid biofuels – Determination of moisture content – Oven dry method – Part 3: Moisture in general analysis sample. 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, 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 14774-1:2010
EN 14774-1:2009 (E) 4 1 Scope This European Standard describes the method of determining the total moisture content of a sample of solid biofuels by drying in an oven and should be used when high precision of the determination of moisture content is necessary. The method described in this document is applicable to all solid biofuels. The total moisture content of biofuels is not an absolute value and conditions for its determination have to be standardised to enable comparative determinations to be made. NOTE The term moisture content when used with biomass materials can be misleading since untreated biomass frequently contains varying amounts of volatile compounds (extractives) which may evaporate when determining moisture content by oven drying (see Bibliography). 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. CEN/TS 14588:2003, Solid biofuels – Terminology, definitions and descriptions CEN/TS 14778-1, Solid biofuels – Sampling – Part 1: Methods for sampling CEN/TS 14778-2, Solid biofuels – Sampling – Part 2: Methods for sampling particulate material transported in lorries CEN/TS 14780, Solid biofuels – Methods for sample preparation
3 Terms and
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