DD-CEN-TS-14775-2004.pdf
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1、DRAFT FOR DEVELOPMENT DD CEN/TS 14775:2004 Solid biofuels Method for the determination of ash content ICS 75.160.10 ? Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 05:38:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI DD CEN/TS 14775:2004 This Draft for Developm
2、ent was published under the authority of the Standards Policy and Strategy Committee on 16 December 2004 BSI 16 December 2004 ISBN 0 580 45017 1 National foreword This Draft for Development is the official English language version of CEN/TS 14775:2004. This publication is not to be regarded as a Bri
3、tish Standard. It is being issued in the Draft for Development series of publications and is of a provisional nature because the Technical Committee needs some time to collect the data in this relatively new area of technology. It should be applied on this provisional basis, so that information and
4、experience of its practical application may be obtained. Comments arising from the use of this Draft for Development are requested so that UK experience can be reported to the European organization responsible for its conversion to a European standard. A review of this publication will be initiated
5、2 years after its publication by the European organization so that a decision can be taken on its status at the end of its 3-year life. Notification of the start of the review period will be made in an announcement in the appropriate issue of Update Standards. According to the replies received by th
6、e end of the review period, the responsible BSI Committee will decide whether to support the conversion into a European standard, to extend the life of the Technical Specification or to withdraw it. Comments should be sent in writing to the Secretary of BSI Technical Committee PTI/17, Solid biofuels
7、, at British Standards House, 389 Chiswick High Road, London W4 4AL, giving the document reference and clause number and proposing, where possible, an appropriate revision of the text. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references
8、 The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Stan
9、dards Online. Summary of pages This document comprises a front cover, an inside front cover, the CEN/TS title page, pages 2 to 9 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComment
10、s Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 05:38:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI TECHNICAL SPECIFICATION SPCIFICATION TECHNIQUE TECHNISCHE SPEZIFIKATION CEN/TS 14775 August 2004 ICS 75.160.10 English version Solid biofuels - Method for the d
11、etermination of ash content Feste Biobrennstoffe - Verfahren zur Bestimmung des Aschegehaltes This Technical Specification (CEN/TS) was approved by CEN on 5 February 2004 for provisional application. The period of validity of this CEN/TS is limited initially to three years. After two years the membe
12、rs 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
13、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,
14、 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 COMIT EUROPEN DE NORMALISATION
15、 EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2004 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. CEN/TS 14775:2004: E Licensed Copy: London South Bank University, London South Bank University,
16、 Tue Dec 12 05:38:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN/TS 14775:2004 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references4 3 Terms and definitions .4 4 Principle4 5 Apparatus .4 5.1 Dish .4 5.2 Furnace.5 5.3 Balance .5 5.4 Desiccator.5 6 Preparation of test sample5 7 Procedure
17、 .5 8 Calculations6 9 Precision.6 10 Test Report.7 Annex A .8 Bibliography9 Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 05:38:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN/TS 14775:2004 (E) 3 Foreword This document (CEN/TS 14775:2004) has been prepared b
18、y 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 Repu
19、blic, 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. Licensed Copy: London South Bank University, London South Bank U
20、niversity, Tue Dec 12 05:38:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN/TS 14775:2004 (E) 4 1 Scope This document specifies a method for the determination of ash content of all solid biofuels (CEN/TS 14588). 2 Normative references The following referenced documents are indispensable for the ap
21、plication 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. CEN/TS 14588:2003, Solid biofuels Terminology, definitions and description CEN/TS 14774-3, Solid Biofuels Method
22、 for the determination of moisture content Oven dry method Part 3: Moisture in general analysis sample prCEN/TS 14779, Solid Biofuels Methods for preparing sampling plans and sampling certificates prCEN/TS 14780, Solid Biofuels Methods for sample reduction 3 Terms and definitions For the purpose of
23、this document, the terms and definitions given in CEN/TS 14588:2003 and the following apply. 3.1 Ash content, dry basis Mass of inorganic residue remaining after ignition of a fuel under specified conditions expressed as a percentage of the mass of the dry matter in the fuel 4 Principle The ash cont
24、ent is determined by calculation from the mass of the residue remaining after the sample is heated in air under rigidly controlled conditions of time, sample weight and equipment specifications to a controlled temperature of (55010) C. NOTE Difference in the ash content determined at a higher temper
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