CEN/TS 14774-2:2004

Solid biofuels - Methods for the determination of moisture content - Oven dry method - Part 2: Total moisture - Simplified method

This document describes the method of determining the total moisture content of a sample of solid biofuels by drying in an oven and may be used when the highest precision is not needed e.g. for routine production control on site. 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.

Feste Biobrennstoffe - Verfahren zur Bestimmung des Wassergehaltes - Verfahren der Ofentrocknung - Teil 12: Gehalt an Gesamtwasser - Vereingachtes Verfahren

Dieses Dokument beschreibt ein Verfahren zur Bestimmung des Gehaltes an Gesamt-wasser einer Probe von festen Biobrennstoffen durch Trocknen in einem Ofen fest und darf angewendet werden, wenn keine hohe Präzision erforderlich ist, z. B. zur regelmäßigen Produktionskontrolle im Betrieb. Das in diesem Dokument festgelegte Verfahren gilt für alle festen Biobrennstoffe.
Der Gesamtwassergehalt 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 irreführend sein, weil unbehandelte Biomasse oft unterschiedliche Mengen an flüchtigen Verbindungen (Extraktstoffen) enthält, die bei der Bestimmung des Wassergehaltes durch Ofentrocknung verdampfen können.

Biocombustibles solides - Détermination de l'humidité - Méthode par séchage à l'étuve - Partie 2: Humidité totale - Procédure simplifiée

Trdna biogoriva – Metoda določevanja vlage – Metoda sušenja v peči – 2. del: Celotna vlaga – Poenostavljena metoda

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• Status: Withdrawn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: 11-Nov-2009
• Completion Date: 11-Nov-2009
• Mandate: M/298 - Mandate to CEN for standardisation in the field of solid biofuels
• Ref Project: SIST-TS CEN/TS 14774-2:2004 - Solid biofuels - Methods for the determination of moisture content - Oven dry method - Part 2: Total moisture - Simplified method

Relations

• Replaced By: EN 14774-2:2009 - Solid biofuels - Determination of moisture content - Oven dry method - Part 2: Total moisture - Simplified method
• Effective Date: 14-Nov-2009

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2004
7UGQDELRJRULYD±0HWRGDGRORþHYDQMDYODJH±0HWRGDVXãHQMDYSHþL±GHO
&HORWQDYODJD±3RHQRVWDYOMHQDPHWRGD
Solid biofuels - Methods for the determination of moisture content - Oven dry method -
Part 2: Total moisture - Simplified method
Feste Biobrennstoffe - Verfahren zur Bestimmung des Wassergehaltes - Verfahren der
Ofentrocknung - Teil 12: Gehalt an Gesamtwasser - Vereingachtes Verfahren
Biocombustibles solides - Détermination de l'humidité - Méthode par séchage a l'étuve -
Partie 2: Humidité totale - Procédure simplifiée
Ta slovenski standard je istoveten z: CEN/TS 14774-2:2004
ICS:
75.160.10 Trda goriva Solid fuels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL SPECIFICATION
CEN/TS 14774-2
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 2: Total moisture - Simplified
method
Biocombustibles solides - Détermination de l'humidité - Feste Biobrennstoffe - Verfahren zur Bestimmung des
Méthode par séchage à l'étuve - Partie 2: Humidité totale - Wassergehaltes - Verfahren der Ofentrocknung - Teil 12:
Procédure simplifiée Gehalt an Gesamtwasser - Vereingachtes Verfahren
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 14774-2:2004: E
worldwide for CEN national Members.

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
10 Test report .7

Foreword
This document (CEN/TS 14774-2:2004) 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
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, Slovakia, Slovenia, Spain, Sweden, Switzerland
and United Kingdom.
Introduction
CEN/TS 14774 consists of the following parts under the general title Solid Biofuels – Methods for the
determination of moisture content – Oven dry methods.
Part 1 Total moisture – Reference method
Part 2 Total moisture – Simplified method
Part 3 Moisture in general analysis sample

1 Scope
This document describes the method of determining the total moisture content of a sample of solid biofuels by
drying in an oven and may be used when the highest precision is not needed e.g. for routine production
control on site. 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 biomas
...