SIST EN 15149-2:2011
(Main)Solid biofuels - Determination of particle size distribution - Part 2: Vibrating screen method using sieve apertures of 3,15 mm and below
Solid biofuels - Determination of particle size distribution - Part 2: Vibrating screen method using sieve apertures of 3,15 mm and below
This European Standard specifies a method for the determination of the size distribution of particulate biofuels by the vibrating screen method. The method described is meant for particulate biofuels only, namely materials that either have been reduced in size, such as most wood fuels, or are physically in a particulate form. This document applies to particulate uncompressed fuels with a nominal top size of 3,5 mm and below (e.g. sawdust).
Feste Biobrennstoffe - Bestimmung der Partikelgrößenverteilung - Teil 2: Rüttelsiebverfahren mit Sieb-Lochgrößen von 3,15 mm und darunter
Diese Europäische Norm legt ein Verfahren zur Bestimmung der Partikelgrößenverteilung von Biobrenn¬stoffen als Schüttgut durch das Rüttelsiebverfahren fest. Das festgelegte Verfahren ist ausschließlich für Biobrennstoffe als Schüttgut vorgesehen, d. h. Materialien, die entweder in ihrer Größe reduziert worden sind, so wie die meisten holzbasierten Brennstoffe, oder die als Schüttgut vorliegen. Dieses Dokument gilt für ungepresste Biobrennstoffe in Form von Schüttgut mit einer nominellen Siebgröße von 3,5 mm oder weniger (z. B. Sägespäne).
Biocombustibles solides - Détermination de la distribution granulométrique - Partie 2: Méthode au tamis vibrant d'ouverture de maille inférieure ou égale à 3,15 mm
La présente Norme européenne spécifie une méthode pour la détermination de la distribution granulométrique de biocombustibles particulaires à l'aide d'un tamis vibrant. La méthode décrite s’applique uniquement aux biocombustibles particulaires, notamment les matériaux qui ont été fragmentés, comme la plupart des bois à usage combustible, ou qui se présentent physiquement sous forme de particules. Le présent document s’applique aux combustibles particulaires non comprimés de dimension supérieure nominale égale ou inférieure à 3,5 mm (sciure de bois, par exemple).
Trdna biogoriva - Določevanje porazdelitve velikosti delcev - 2. del: Vibracijska zaslonska metoda z uporabo sita z odprtinami 3,15 mm in manj
Ta evropski standard določa metodo za določevanje porazdelitev velikosti delcev določenih biogoriv z vibracijsko zaslonsko metodo. Opisana metoda je namenjena zgolj za trdne delce biogoriv, in sicer materiale, ki so jih ali zmanjšali, kot večino lesenih goriv, ali pa so fizično v določeni obliki. Ta dokument velja za trdne delce nestisnjenih goriv z nazivno največjo velikostjo 3,5 mm in manj (npr. žagovina).
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Feste Biobrennstoffe - Bestimmung der Partikelgrößenverteilung - Teil 2: Rüttelsiebverfahren mit Sieb-Lochgrößen von 3,15 mm und darunterBiocombustibles solides - Détermination de la distribution granulométrique - Partie 2: Méthode au tamis vibrant d'ouverture de maille inférieure ou égale à 3,15 mmSolid biofuels - Determination of particle size distribution - Part 2: Vibrating screen method using sieve apertures of 3,15 mm and below75.160.10Trda gorivaSolid fuelsICS:Ta slovenski standard je istoveten z:EN 15149-2:2010SIST EN 15149-2:2011en,fr,de01-januar-2011SIST EN 15149-2:2011SLOVENSKI
STANDARDSIST-TS CEN/TS 15149-2:20061DGRPHãþD
SIST EN 15149-2:2011
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15149-2
October 2010 ICS 75.160.10 Supersedes CEN/TS 15149-2:2006English Version
Solid biofuels - Determination of particle size distribution - Part 2: Vibrating screen method using sieve apertures of 3,15 mm and below
Biocombustibles solides - Détermination de la distribution granulométrique - Partie 2: Méthode au tamis vibrant d'ouverture de maille inférieure ou égale à 3,15 mm
Feste Biobrennstoffe - Bestimmung der Partikelgrößenverteilung - Teil 2: Rüttelsiebverfahren mit Sieb-Lochgrößen von 3,15 mm und darunter This European Standard was approved by CEN on 26 September 2010.
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
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15149-2:2010: ESIST EN 15149-2:2011
EN 15149-2:2010 (E) 2 Contents Page Foreword .3Introduction .41Scope .52Normative references .53Terms and definitions .54Principle .55Apparatus .56Sample preparation .76.1Sample size .76.2Moisture conditions .77Procedure .78Calculation .89Performance characteristics .910Test report .9Annex A (normative)
Determination of the median value of a particle size distribution . 10A.1Definition . 10A.2Procedure (example) . 11A.3Calculation . 11Annex B (informative)
Guidance data on performance characteristics . 12Bibliography . 13 SIST EN 15149-2:2011
EN 15149-2:2010 (E) 3 Foreword This document (EN 15149-2:2010) 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 2011, and conflicting national standards shall be withdrawn at the latest by April 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 patent rights. This document supersedes CEN/TS 15149-2:2006. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. EN 15149, Solid biofuels
Determination of particle size distribution, consists of the following parts: Part 1: Oscillating screen method using sieve apertures of 1 mm and above Part 2: Vibrating screen method using sieve apertures of 3,15 mm and below 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, 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 the United Kingdom.
SIST EN 15149-2:2011
EN 15149-2:2010 (E) 4 Introduction Part 1 describes the reference method for size classification of samples with a nominal top size of 1 mm and above. Part 2 describes the reference method for size classification of samples with a nominal top size below
3,15 mm. Manual sieving is not included in this standard, as no data is available which support that manual sieving operations are comparable to the here described mechanical sieving operations. SIST EN 15149-2:2011
EN 15149-2:2010 (E) 5 1 Scope This European Standard specifies a method for the determination of the size distribution of particulate biofuels by the vibrating screen method. The method described is meant for particulate biofuels only, namely materials that either have been reduced in size, such as most wood fuels, or are physically in a particulate form. This document applies to particulate uncompressed fuels with a nominal top size of 3,5 mm and below (e.g. sawdust). 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. EN 14588:2010, Solid biofuels
Terminology, definitions and descriptions EN 14774-1:2009, Solid biofuels
Determination of moisture content
Oven dry method
Part 1: Total moisture
Reference method EN 14774-2:2009, Solid biofuels
Determination of moisture content
Oven dry method
Part 2: Total moisture
Simplified method prEN 14778, Solid biofuels
Sampling prEN 14780, Solid biofuels
Sample preparation EN 14961-1, Solid biofuels
Fuel specifications and classes
Part 1: General requirements ISO 3310-1, Test sieves
Technical requirements and testing
Part 1: Test sieves of metal wire cloth ISO 3310-2, Test sieves
Technical requirements and testing
Part 2: Test sieves of perforated metal plate 3 Terms and definitions For the purpose of this document, the terms and definitions given in EN 14588:2010 apply. 4 Principle A sample is subjected to sieving through vibrating sieves, sorting the particles in decreasing size classes by mechanical means. NOTE A manual sieving is excluded due to the fact that small sieve holes can easily be clogged by particles. 5 Apparatus 5.1 Sieves. For the test an appropriate number of either circular or rectangular sieves with a minimum effective sieve area of 250 cm2 is required. The geometry of the apertures, the thickness of the sieves, the hole distances and the diameter of the holes shall be in accordance with the requirements of ISO 3310-1 and -2. The frame of the sieves shall have a height that enables the sieves to contain the samples and allows a free movement of the sample during the sieving process. The number of sieves and the aperture sizes of the sieves shall be chosen according to the size specification of the actual sample material, see also EN 14961-1. For sawdust and similar fine grade materials it is recommended to use the following set of sieves: SIST EN 15149-2:2011
EN 15149-2:2010 (E) 6 3,15 mm round holes; 2,8 mm mesh wire cloth; 2,0 mm mesh wire cloth; 1,4 mm mesh wire cloth; 1,0 mm mesh wire cloth; 0,5 mm mesh wire cloth; 0,25 mm mesh wire cloth. 5.2 Collecting pans. For weighing
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