1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 12909:2012Products used for treatmentof water intended for humanconsumption AnthraciteCopyright European Committee for Standardization Provided by IHS under license with CE
2、NNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 12909:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 12909:2012. Itsupersedes BS EN 12909:2005 which is withdrawn.The UK participation in its preparation was entruste
3、d to TechnicalCommittee CII/59, Chemicals for drinking water treatment.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplica
4、tion. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 77576 5ICS 13.060.20; 71.100.80Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strateg
5、y Committee on 31 January 2013.Amendments issued since publicationDate Text affectedCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 12909:2012EUROPEAN STANDARD NORME EUROPE
6、NNE EUROPISCHE NORM EN 12909 November 2012 ICS 71.100.80 Supersedes EN 12909:2005English Version Products used for treatment of water intended for human consumption - Anthracite Produits utiliss pour le traitement de leau destine la consommation humaine - Anthracite Produkte zur Aufbereitung von Was
7、ser fr den menschlichen Gebrauch - Anthrazit This European Standard was approved by CEN on 9 September 2012. 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 altera
8、tion. 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
9、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
10、, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDAR
11、DIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12909:2012: ECopyright European Committee for Standard
12、ization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 12909:2012EN 12909:2012 (E) 2 Contents Page Foreword 3Introduction . 41 Scope 52 Normative references 53 Terms, definitions and symbols . 54 Description . 55 Physica
13、l properties 56 Chemical properties 67 Test methods 78 Labelling, transportation and storage . 8Annex A (informative) General information on anthracite . 9Bibliography 13Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking
14、 permitted without license from IHS-,-,-BS EN 12909:2012EN 12909:2012 (E) 3 Foreword This document (EN 12909:2012) has been prepared by Technical Committee CEN/TC 164 “Water supply”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, e
15、ither by publication of an identical text or by endorsement, at the latest by May 2013, and conflicting national standards shall be withdrawn at the latest by May 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CE
16、NELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12909:2005. The significant technical difference between this edition and EN 12909:2005 is as follows: Updating of clause 8.2 in line with current legislation. According to the CEN/CENELEC
17、Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Icelan
18、d, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction
19、 or networking permitted without license from IHS-,-,-BS EN 12909:2012EN 12909:2012 (E) 4 Introduction In respect of potential adverse effects on the quality of water intended for human consumption caused by the product covered by this European Standard: a) this European Standard provides no informa
20、tion 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 criteria, existing national regulations concerning the use and/or the characteristics of this product remain in
21、 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 covered by this European Standard is subject to regulation or control by National Authorities. Copyright European C
22、ommittee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 12909:2012EN 12909:2012 (E) 5 1 Scope This European Standard is applicable to anthracite used for treatment of water intended for human consumpt
23、ion. 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 documents, in whole or in part, are normatively referenced in this document a
24、nd are indispensable for its application. 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 suppo
25、rting 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 document, the terms, definitions and symbols given in EN 1290
26、1:1999 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 is a black
27、coloured lustrous granular material. The product has a granular or angular shape, amorphous structure and smooth texture. The product shall be generally homogeneous and shall be visibly free of extraneous matter. Copyright European Committee for Standardization Provided by IHS under license with CEN
28、Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 12909:2012EN 12909:2012 (E) 6 5.2 Particle size distribution The particle size distribution shall be determined on samples taken at the point of manufacture using the method of test given in EN 12902. NOTE 1 The
29、 particle size can decrease during transportation and handling. The particle 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) b
30、y particle size range and by mass of oversize and undersize particles according 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 med
31、ia filters. For use as a support layer, maximum mass fractions of oversize 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 loos
32、e shall be in the range of 650 kg/m3to 800 kg/m3.5.3.2 Bulk density packed The bulk density packed shall be in the range of 670 kg/m3to 820 kg/m3.6 Chemical properties This European Standard specifies the minimum purity requirements for anthracite used for the treatment of water intended for human c
33、onsumption. Limits are given for impurities commonly present in the 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. Users of this product should check the n
34、ational regulations in order to clarify whether it is of appropriate 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 im
35、purities and chemical parameters where these are likely to be 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 notifi
36、ed to the user. The composition of the commercial product shall conform to Table 1. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 12909:2012EN 12909:2012 (E) 7 Table 1 Co
37、mposition of commercial product Parameter Mass fraction % C (water and ash free basis) min 90 Ash max 7 Volatile matter max 10 NOTE 1 These parameters do not influence filtration properties but give information about the source of anthracite. NOTE 2 Other potential components are given in A.2.1. Aft
38、er filling, washing and commissioning of a filter system producing drinking water, anthracite should not increase the concentrations of chemical parameters (see 1). NOTE 3 Water extractable substances, determined in accordance with the method for granular materials given in EN 12902, can be used to
39、estimate the leaching of the chemicals specified in EN 12902. 7 Test methods 7.1 Sampling Prepare the laboratory sample(s) required 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
40、 12902. 7.2.2 Bulk density loose The bulk density loose shall be determined in accordance with EN 12902. 7.2.3 Bulk density packed 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
41、.2.5 Ash The ash shall be determined in accordance with EN 12902. 7.2.6 Content of volatile material The content of volatile material shall be determined in accordance with EN 12902. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction
42、or networking permitted without license from IHS-,-,-BS EN 12909:2012EN 12909:2012 (E) 8 8 Labelling, transportation and storage 8.1 Means of delivery Anthracite shall be delivered in bags, semi-bulk containers, or bulk. In order that the purity of the product is not affected, the means of delivery
43、shall not have been used previously for any different product or it shall have been specially cleaned and prepared before use. 8.2 Labelling in accordance with the EU legislation 1)Anthracite is not listed within Annex VI of Regulation (EC) No 1272/2008 at the date of publication of this European St
44、andard. The legislation 2, and its amendments for the purposes of its adaptation to technical and scientific progress contains a list of substances classified by the EU. Substances not listed in this regulation should be classified on the basis of their intrinsic properties according to the criteria
45、 in the regulation by the person responsible for the marketing of the substance. 8.3 Transportation regulations and labelling Anthracite is not a dangerous cargo. 8.4 Marking The marking shall include the following: name “Anthracite“, trade name and particle size range; net mass or the volume; name
46、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 unlimited period of time. 1) See 2. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleN
47、o reproduction or networking permitted without license from IHS-,-,-BS EN 12909:2012EN 12909:2012 (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 Anthracite is produced by mining, crushing, cleaning, dry
48、ing 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 ParameterMass fraction % SiO2max 3 Fe2O3max 1Al2O3max 2 CaO max 1 K2O max 1 Na2O max 1Mineralogical 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
