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1、BRITISH STANDARD BS EN 12909:2005 Products used for treatment of water intended for human consumption Anthracite The European Standard EN 12909:2005 has the status of a British Standard ICS 71.100.80 ? Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:48:45 GMT+00:00 2006, Uncontrolled Copy,
2、 (c) BSI BS EN 12909:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 20 December 2005 BSI 20 December 2005 ISBN 0 580 47441 0 National foreword This British Standard is the official English language version of EN 12909:2005. It supersede
3、s BS EN 12909:1999 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee CII/59, Chemicals for drinking water treatment, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any e
4、nquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The Brit
5、ish 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 Standards Onl
6、ine. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an in
7、side front cover, the EN title page, pages 2 to 13 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. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:48:45 GMT+00:00 20
8、06, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12909 October 2005 ICS 71.100.80Supersedes EN 12909:1999 English Version Products used for treatment of water intended for human consumption - Anthracite Produits utiliss pour le traitement de leau destine la consomm
9、ation humaine - Anthracite Produkte zur Aufbereitung von Wasser fr den menschlichen Gebrauch - Anthrazit This European Standard was approved by CEN on 4 August 2005. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Stan
10、dard 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 Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French,
11、 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic
12、, 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 NORMALISATIO
13、N EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2005 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12909:2005: E Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:48:45 GMT+00:00 200
14、6, Uncontrolled Copy, (c) BSI EN 12909:2005 (E) 2 Contents Foreword 3 Introduction4 1 Scope.5 2 Normative references .5 3 Terms, definitions and symbols 5 4 Description5 5 Physical properties.5 6 Chemical properties6 7 Test methods.7 8 Labelling, transportation and storage.8 Annex A (informative) Ge
15、neral information on anthracite9 Bibliography.13 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:48:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12909:2005 (E) 3 Foreword This European Standard (EN 12909:2005) has been prepared by Technical Committee CEN/TC 164 “Water supply”, the secr
16、etariat of which is held by AFNOR. 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 2006, and conflicting national standards shall be withdrawn at the latest by April 2006. This European Stan
17、dard supersedes EN 12909:1999. Significant technical difference between this edition and EN 12909:1999 is as follows: a) Replacement of the reference to EU Directive 80/778/EEC of 15 July 1980 with the latest Directive in force (see 1). According to the CEN/CENELEC Internal Regulations, the national
18、 standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portug
19、al, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:48:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12909:2005 (E) 4 Introduction In respect of potential adverse effects on the quality of water intended for human consum
20、ption, caused by the product covered by this European Standard: a) This European Standard provides no information as to whether the product may be used without restriction in any of the Member States of the EU or EFTA; b) It should be noted that, while awaiting the adoption of verifiable European cr
21、iteria, existing national regulations concerning the use and/or the characteristics of this product remain in force. NOTE Conformity with this European Standard does not confer or imply acceptance or approval of the product in any of the Member States of the EU or EFTA. The use of the product covere
22、d by this European Standard is subject to regulation or control by National Authorities. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:48:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12909:2005 (E) 5 1 Scope This European Standard is applicable to anthracite used for treatment of wat
23、er intended for human consumption. It describes the characteristics of anthracite and specifies the requirements and the corresponding test methods for anthracite. It gives information on its use in water treatment. 2 Normative references The following referenced documents are indispensable for the
24、application of this European Standard. For dated references, only the edition cited applies. For undated references the latest edition of the referenced document (including any amendments) applies. EN 12901:1999, Products used for treatment of water intended for human consumption - Inorganic support
25、ing and filtering materials Definitions EN 12902, Products used for treatment of water intended for human consumption - Inorganic supporting and filtering materials - Methods of test 3 Terms, definitions and symbols For the purposes of this European Standard, the terms, definitions and symbols given
26、 in EN 12901:1999 apply. 4 Description 4.1 Identification 4.1.1 Chemical name Carbon. 4.1.2 Synonym or common name Natural anthracite. 4.2 Commercial forms Anthracite according to this European Standard is available in different particle size ranges. 5 Physical properties 5.1 Appearance The product
27、is a black coloured lustrous granular material. The product has a granular or angular shape, amorphous structure, smooth texture. The product shall be generally homogeneous and shall be visibly free of extraneous matter. 5.2 Particle size distribution The particle size distribution shall be determin
28、ed on samples taken at the point of manufacture using the method of test given in EN 12902. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:48:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12909:2005 (E) 6 NOTE 1 The particle size can decrease during transportation and handling. The par
29、ticle size distribution shall be described by either: a) effective size: (d10) with a maximum deviation of 5%; uniformity coefficient: (U) which shall be less than 1,5; minimum size: (d1) with a maximum deviation of 5%; or b) by particle size range and by mass of oversize and undersize particles acc
30、ording to application. The maximum contents of oversize and undersize shall be a mass fraction of 5% for application of the product as a filtration layer in multi media filters and a mass fraction of 10% for use in single media filters. For use as a support layer, maximum mass fractions of oversize
31、and undersize of 15% are acceptable. See A.2.3 for examples of available particle sizes that are used. NOTE 2 Other values can be necessary for certain applications. 5.3 Density 5.3.1 Bulk density loose The bulk density loose shall be in the range of 650 kg/m 3 to 800 kg/m3. 5.3.2 Bulk density packe
32、d The bulk density packed shall be in the range of 670 kg/m 3 to 820 kg/m 3 . 6 Chemical properties This European Standard specifies the minimum purity requirements for anthracite used for the treatment of water intended for human consumption. Limits are given for impurities commonly present in the
33、product. Depending on the raw material and the manufacturing process other impurities may be present and, if so, this shall be notified to the user and when necessary to relevant authorities. NOTE 1 Users of this product should check the national regulations in order to clarify whether it is of appr
34、opriate purity for treatment of water intended for human consumption, taking into account raw water quality, contents of other impurities and additives used in the products not stated in this product standard. Limits have been given for impurities and chemical parameters where these are likely to be
35、 present in significant quantities from the current production process and raw materials. If the production process or raw materials lead to significant quantities of impurities, by-products or additives being present, this shall be notified to the user. The composition of the commercial product sha
36、ll conform to Table 1. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:48:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12909:2005 (E) 7 Table 1 - Composition of commercial product Parameter Mass fraction % C (water and ash free basis) min. 90 Ash max. 7 Volatile matter max. 10 NOTE 2 T
37、hese parameters do not influence filtration properties but give information about the source of anthracite. NOTE 3 Other potential components are given in A.2.1. NOTE 4 After filling, washing and commissioning of a filter system producing drinking water, anthracite should not increase the concentrat
38、ions of chemical parameters (see 1). NOTE 5 Water extractable substances, determined in accordance with the method for granular materials given in EN 12902, can be used to estimate the leaching of the chemicals specified in EN 12902. 7 Test methods 7.1 Sampling Prepare the laboratory sample(s) requi
39、red by the relevant procedures described in EN 12902. 7.2 Analysis 7.2.1 Particle size distribution The particle size distribution shall be determined in accordance with EN 12902. 7.2.2 Bulk density loose The bulk density loose shall be determined in accordance with EN 12902. 7.2.3 Bulk density pack
40、ed The bulk density packed shall be determined in accordance with EN 12902. 7.2.4 Content of carbon The content of carbon shall be determined in accordance with EN 12902. 7.2.5 Ash The ash shall be determined in accordance with EN 12902. 7.2.6 Content of volatile material The content of volatile mat
41、erial shall be determined in accordance with EN 12902. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:48:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12909:2005 (E) 8 8 Labelling, transportation and storage 8.1 Means of delivery Anthracite shall be delivered in bags, semi-bulk contain
42、ers, or bulk. In order that the purity of the product is not affected, the means of delivery shall not have been used previously for any different product or it shall have been specially cleaned and prepared before use. 8.2 Risk and safety labelling in accordance with the EU Directives 1) Anthracite
43、 is not listed as a dangerous substance at the date of publication of this European Standard. NOTE Annex I of the Directive 67/548/EEC on Classification, packaging and labelling of dangerous substances and its amendments and adaptations in the European Union contains a list of substances classified
44、by the EU. Substances not in this Annex I should be classified on the basis of their intrinsic properties according to the criteria in the Directive by the person responsible for the marketing of the substance. 8.3 Transportation regulations and labelling Anthracite is not a dangerous cargo. 8.4 Mar
45、king The marking shall include the following : name “Anthracite“, trade name and particle size range; net mass or the volume; name and the address of supplier and/or manufacturer; statement “this product conforms to EN 12909“. 8.5 Storage (long term stability) Anthracite can be stored for an unlimit
46、ed period of time. 1) See 2. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:48:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12909:2005 (E) 9 Annex A (informative) General information on anthracite A.1 Origin A.1.1 Raw material Natural anthracite coal. A.1.2 Manufacturing process Anthr
47、acite is produced by mining, crushing, cleaning, drying and sieving. A.2 Typical properties A.2.1 Chemical composition The composition depends on the origin. Typical limits are given as an example in Table A.1 (the main components are given in Clause 6). Table A.1 - Chemical composition Parameter Ma
48、ss fraction % SiO2 max. 3 Fe2O3 max. 1 Al2O3 max. 2 CaO max. 1 K2O max. 1 Na2O max. 1 Mineralogical and petrological analyses give additional information. A.2.2 Mechanical strength The mechanical strength of anthracite is high. Abrasion products consist of dust and small particles of material. They
49、are formed during transportation, filling, and washing. Abrasion products are not completely removed by washing. The existing methods for determination of abrasion do not lead to exact results regarding behaviour of filter media during operation. They can be used only for comparison of different filter media. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:48:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12909:2005 (E) 10 A.2.3 Examples of particle size dist
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