CEN/TS 14780:2005

Solid biofuels - Methods for sample preparation

This Technical Specification describes methods for reducing combined samples to laboratory samples and laboratory samples to sub-samples and general analysis samples, and is applicable to solid biofuels that are either:
-   fine and regularly-shaped particulate materials, particle sizes up to about 10 mm that can be sampled using a scoop or pipe, for example: sawdust, olive stones and wood pellets;
-   coarse or irregularly-shaped particulate materials, particle sizes up to about 200 mm that can be sampled using a fork or shovel, for example: wood chips and nut shells, forest residue chips, and loose straw;
-   large pieces with nominal top size above 200 mm;
The methods described in this Technical Specification may be used for sample preparation, for example, when the samples are to be tested for bulk density, durability, particle size distribution, moisture content, ash content, ash melting behaviour, calorific value, chemical composition, and impurities. The methods are not intended to be applied to the very large samples required for the testing of bridging properties.

Feste Biobrennstoffe - Verfahren zur Probenherstellung

Diese Technische Spezifikation legt Verfahren zur Teilung von Gesamtproben in Laborproben und von
Laborproben in Teilproben und allgemeine Analyseproben fest und gilt für feste Biobrennstoffe, die eines der
folgenden Merkmale aufweisen:
- feine und regelmäßig geformte aus Teilchen bestehende Stoffe mit einer Teilchengröße bis etwa 10 mm,
von denen mit einem Löffel oder einem Rohr Proben entnommen werden können, zum Beispiel:
Sägespäne, Olivenkerne und Holzpellets;
- grobe oder unregelmäßig geformte aus Teilchen bestehende Stoffe mit einer Teilchengröße bis etwa
200 mm, von denen mit einer Gabel oder einer Schaufel Proben entnommen werden können, zum
Beispiel: Holzhackschnitzel und Nussschalen, Waldholzhackschnitzel und loses Stroh;
- große Stücke mit einer nominellen Siebgröße über 200 mm.
Die in dieser Technischen Spezifikation festgelegten Verfahren dürfen bei der Probenherstellung angewendet
werden, zum Beispiel, wenn Proben im Hinblick auf Schüttdichte, Dauerhaftigkeit, Teilchengrößenverteilung,
Wasser- und Aschegehalt, Ascheschmelzverhalten, Energieinhalt, chemische Zusammensetzung und
Verunreinigungen geprüft werden. Die Verfahren sind nicht für die bei der Prüfung von
Brückenbildungseigenschaften erforderlichen sehr großen Proben vorgesehen.

Biocombustibles solides - Méthodes de préparation des échantillons

Trdna biogoriva – Metode za pripravo vzorcev

General Information

• Status: Withdrawn
• Publication Date: 30-Aug-2005
• Withdrawal Date: 14-Jun-2011
• ICS: 75.160.10 - Solid fuels
• ICS: 75.160.40 - Biofuels
• Technical Committee: CEN/TC 335 - Solid biofuels
• Drafting Committee: CEN/TC 335/WG 3 - Sampling and sample reduction
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 15-Jun-2011
• Completion Date: 15-Jun-2011
• Mandate: M/298 - Mandate to CEN for standardisation in the field of solid biofuels
• Ref Project: SIST-TS CEN/TS 14780:2005 - Solid biofuels - Methods for sample preparation

Relations

• Replaced By: EN 14780:2011 - Solid biofuels - Sample preparation
• Effective Date: 18-Jun-2011

Standards Content (Sample)

SLOVENSKI STANDARD
SIST-TS CEN/TS 14780:2005
01-november-2005
Trdna biogoriva – Metode za pripravo vzorcev
Solid biofuels - Methods for sample preparation
Feste Biobrennstoffe - Verfahren zur Probenherstellung
Biocombustibles solides - Méthodes de préparation des échantillons
Ta slovenski standard je istoveten z: CEN/TS 14780:2005
ICS:
75.160.10 Trda goriva Solid fuels
SIST-TS CEN/TS 14780:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TS CEN/TS 14780:2005

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SIST-TS CEN/TS 14780:2005
TECHNICAL SPECIFICATION
CEN/TS 14780
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
August 2005
ICS 75.160.10

English Version
Solid biofuels - Methods for sample preparation
Biocombustilbles solides - Méthodes de préparation des Feste Biobrennstoffe - Verfahren zur Probenherstellung
échantillons
This Technical Specification (CEN/TS) was approved by CEN on 19 March 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, 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
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 14780:2005: E
worldwide for CEN national Members.

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SIST-TS CEN/TS 14780:2005
CEN/TS 14780:2005 (E)
Contents Page
Foreword .3
Introduction.4
1 Scope .5
2 Normative references .5
3 Terms and definitions.5
4 Symbols and abbreviations.7
5 Principles of correct sample reduction .7
6 Apparatus .7
7 Sample reduction – general principles.10
8 Methods for reducing combined samples.12
9 Method for reducing laboratory samples to sub-samples and general analysis samples.15
10 Storage and labelling of sub-samples.18
Bibliography.19

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SIST-TS CEN/TS 14780:2005
CEN/TS 14780:2005 (E)
Foreword
This Technical Specification (CEN/TS 14780:2005) 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 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, Slov
...