CEN/TS 14774-3:2004

Solid biofuels - Methods for the determination of moisture content - Oven dry method - Part 3: Moisture in general analysis sample

This document describes the method of determining the moisture in the analysis sample by drying the sample in an oven. It is intended to be used for general analysis samples according to prCEN/TS 14780. The method described in this document is applicable to all solid biofuels.
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 the moisture content of the general analyses sample by oven drying.  
Since biofuels in small particle size are very hygroscopic, their moisture content will vary with change of humidity of the atmosphere and therefore, the moisture of the analyses sample should always be determined simultaneously when portions are weighed out for other analytical determinations, for example calorific value, carbon, nitrogen.

Feste Biobrennstoffe - Verfahren zur Bestimmung des Wassergehaltes - Verfahren der Ofentrocknung - Teil 3: Wassergehalt in gewöhnlichen Analysenproben

Dieses Dokument legt ein Verfahren zur Bestimmung des Wassergehaltes in der Analysenprobe durch Trocknen der Probe in einem Ofen fest. Der Teil ist für die Anwendung bei gewöhnlichen Analysenproben nach prCEN/TS 14780 vorgesehen. Das im vorliegenden Teil dieses Dokumentes festgelegte Verfahren gilt für alle festen Biobrennstoffe.
ANMERKUNG   Der Begriff Wassergehalt kann bei der Anwendung im Zusammenhang mit Biomasse irreführend sein, weil unbehandelte Biomasse oft unterschiedliche Mengen an flüchtigen Verbindungen (Extraktstoffen) enthält, die bei der Bestimmung des Wassergehaltes gewöhnlicher Analysenproben durch Ofentrocknung verdampfen können.
Da Biobrennstoffe mit kleiner Teilchengröße stark hygroskopisch sind, ändert sich deren Wassergehalt bei Änderung der Luftfeuchte, und deshalb sollte der Wassergehalt der Analysenprobe immer gleichzeitig während des Einwägens von Untersuchungsproben für andere analytische Untersuchungen, zum Beispiel des Brennwertes, von Kohlenstoff, Stickstoff, bestimmt werden.

Biocombustilbles solides - Détermination de l'humidité - Méthode par séchage à l'étuve - Partie 3: Humidité de l'échantillon pour analyse générale

Trdna biogoriva – Metoda določevanja vlage – Metoda sušenja v peči – 3. del: Vlaga v osnovnem vzorcu

General Information

• Status: Withdrawn
• Publication Date: 24-Aug-2004
• ICS: 75.160.10 - Solid fuels
• ICS: 75.160.40 - Biofuels
• Technical Committee: CEN/TC 335 - Solid biofuels
• Drafting Committee: CEN/TC 335/WG 4 - Physical and Mechanical Test Methods
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 28-Oct-2009
• Completion Date: 28-Oct-2009
• Mandate: M/298 - Mandate to CEN for standardisation in the field of solid biofuels
• Ref Project: SIST-TS CEN/TS 14774-3:2004 - Solid biofuels - Methods for the determination of moisture content - Oven dry method - Part 3: Moisture in general analysis sample

Relations

• Replaced By: EN 14774-3:2009 - Solid biofuels - Determination of moisture content - Oven dry method - Part 3: Moisture in general analysis sample
• Effective Date: 31-Oct-2009

Standards Content (Sample)

SLOVENSKI STANDARD
SIST-TS CEN/TS 14774-3:2004
01-november-2004
7UGQDELRJRULYD±0HWRGDGRORþHYDQMDYODJH±0HWRGDVXãHQMDYSHþL±GHO
9ODJDYRVQRYQHPY]RUFX
Solid biofuels - Methods for the determination of moisture content - Oven dry method -
Part 3: Moisture in general analysis sample
Feste Biobrennstoffe - Verfahren zur Bestimmung des Wassergehaltes - Verfahren der
Ofentrocknung - Teil 3: Wassergehalt in gewöhnlichen Analysenproben
Biocombustilbles solides - Détermination de l'humidité - Méthode par séchage a l'étuve -
Partie 3: Humidité de l'échantillon pour analyse générale
Ta slovenski standard je istoveten z: CEN/TS 14774-3:2004
ICS:
75.160.10 Trda goriva Solid fuels
SIST-TS CEN/TS 14774-3:2004 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TS CEN/TS 14774-3:2004

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SIST-TS CEN/TS 14774-3:2004
TECHNICAL SPECIFICATION
CEN/TS 14774-3
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
August 2004
ICS 75.160.10

English version
Solid biofuels - Methods for the determination of moisture
content - Oven dry method - Part 3: Moisture in general analysis
sample
Biocombustilbles solides - Détermination de l'humidité - Feste Biobrennstoffe - Verfahren zur Bestimmung des
Méthode par séchage à l'étuve - Partie 3: Humidité de Wassergehaltes - Verfahren der Ofentrocknung - Teil 3:
l'échantillon pour analyse générale Wassergehalt in gewöhnlichen Analysenproben
This Technical Specification (CEN/TS) was approved by CEN on 19 January 2004 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, 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
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 14774-3:2004: E
worldwide for CEN national Members.

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SIST-TS CEN/TS 14774-3:2004
CEN/TS 14774-3:2004 (E)
Contents Page
Foreword.3
1 Scope .5
2 Normative references .5
3 Terms and definitions .5
4 Principle.5
5 Apparatus .5
6 Sample preparation .6
7 Procedure .6
8 Calculation.7
9 Precision.7

2

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SIST-TS CEN/TS 14774-3:2004
CEN/TS 14774-3:2004 (E)
Foreword
This document (CEN/TS 14774-3:2004) 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
c
...