EN 14780:2011
(Main)Solid biofuels - Sample preparation
Solid biofuels - Sample preparation
This European Standard describes methods for reducing combined samples (or increments) to laboratory samples and laboratory samples to sub-samples and general analysis samples and is applicable to solid biofuels.
The methods described in this European Standard may be used for sample preparation, for example, when the samples are to be tested for calorific value, moisture content, ash content, bulk density, durability, particle size distribution, ash melting behaviour, 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 - Probenherstellung
Diese Europäische Norm legt Verfahren zur Reduktion von Gesamtproben (oder Einzelproben) auf Laboratoriumsproben und von Laboratoriumsproben auf Teilproben und allgemeine Analysenproben fest und gilt für feste Biobrennstoffe. Die in dieser Europäische Norm festgelegten Verfahren dürfen bei der Probenvorbereitung angewendet werden, zum Beispiel, wenn Proben im Hinblick auf Energiegehalt, Wasser- und Aschegehalt, Schüttdichte, mechanische Festigkeit, Partikelgrößenverteilung, Ascheschmelzverhalten, chemische Zusammensetzung und Verunreinigungen zu prüfen sind. Die Verfahren sind nicht dafür vorgesehen, auf sehr große Proben angewendet zu werden, die zur Prüfung der Neigung zur Brückenbildung erforderlich sind.
Biocombustibles solides - Préparation des échantillons
La présente Norme européenne décrit les méthodes permettant de réduire les échantillons composites (ou les prélèvements élémentaires) en échantillons pour laboratoire et les échantillons pour laboratoire en sous échantillons et en échantillons pour analyse générale. Elle s’applique aux biocombustibles solides.
Les méthodes décrites dans la présente Norme européenne peuvent être utilisées pour la préparation d’échantillons devant, par exemple, être soumis à des essais portant sur le pouvoir calorique, le taux d’humidité, la teneur en cendres, la masse volumique apparente, la durabilité, la distribution granulométrique des particules, la fusibilité de cendre, la composition chimique et les impuretés. Ces méthodes ne visent pas à s’appliquer aux très grands échantillons utilisés pour évaluer les propriétés de pontage.
Trdna biogoriva - Priprava vzorcev
Ta standard določa metode za zmanjševanje združenih vzorcev v laboratorijske vzorce in laboratorijskih vzorcev v podvzorce ter splošne preskusne vzorce ter velja za trdna biogoriva, ki so lahko:
- drobni delci pravilnih oblik z velikostjo do približno 10 mm, ki se lahko vzorčijo z zajemalko ali cevjo, na primer: žagovina, olivne koščice in lesni peleti;
- grobi delci ali delci nepravilnih oblik z velikostjo do približno 200 mm, ki se lahko vzorčijo z vilami ali lopato, na primer: lesni sekanci in lupine oreškov, sekanci gozdnih ostankov in nevezana slama;
- veliki delci z nazivno največjo velikostjo nad 200 mm;
Metode, opisane v tem standardu, se lahko uporabljajo za pripravo vzorcev, na primer pri preskusu vzorcev za volumensko gostoto, trajnost, porazdelitev velikosti delcev, vsebnost vlage, vsebnost pepela, karakterizacijo tališča pepela, kalorično vrednost, kemično sestavo in nečistoče. Metode niso primerne za uporabo pri zelo velikih vzorcih, potrebnih za preskušanje premostitvenih lastnosti.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Trdna biogoriva - Priprava vzorcevFeste Biobrennstoffe - ProbenherstellungBiocombustibles solides - Préparation des échantillonsSolid biofuels - Sample preparation75.160.10Trda gorivaSolid fuelsICS:Ta slovenski standard je istoveten z:EN 14780:2011SIST EN 14780:2011en,fr,de01-september-2011SIST EN 14780:2011SLOVENSKI
STANDARDSIST-TS CEN/TS 14780:20051DGRPHãþD
SIST EN 14780:2011
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14780
June 2011 ICS 75.160.10 Supersedes CEN/TS 14780:2005English Version
Solid biofuels - Sample preparation
Biocombustibles solides - Préparation des échantillons
Feste Biobrennstoffe - Probenherstellung This European Standard was approved by CEN on 5 May 2011.
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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
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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 14780:2011: ESIST EN 14780:2011
EN 14780:2011 (E) 2 Contents
Foreword .3Introduction .41Scope .52Normative references .53Terms and definitions .54Symbols and abbreviations .65Principles of correct sample reduction .66Apparatus .77Sample reduction – general principles . 108Methods for sample division . 129Method for reducing laboratory samples to sub-samples and general analysis samples . 1510Storage and labelling . 1711Performance characteristics . 17Annex A (informative)
Precision in relation to division method . 18Bibliography . 24 SIST EN 14780:2011
EN 14780:2011 (E) 3 Foreword This document (EN 14780:2011) 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 December 2011, and conflicting national standards shall be withdrawn at the latest by December 2011. 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 pat
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