1、January 2013 Translation by DIN-Sprachendienst.English price group 10No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC
2、S 71.100.80!$z“1938791www.din.deDDIN EN 12913Products used for treatment of water intended for human consumption Powdered diatomaceous earth;English version EN 12913:2012,English translation of DIN EN 12913:2013-01Produkte zur Aufbereitung von Wasser fr den menschlichen Gebrauch Kieselgur, pulverfrm
3、ig;Englische Fassung EN 12913:2012,Englische bersetzung von DIN EN 12913:2013-01Produits utiliss pour le traitement de leau destine la consommation humaine Terre de diatomes en poudre;Version anglaise EN 12913:2012,Traduction anglaise de DIN EN 12913:2013-01SupersedesDIN EN 12913:2006-01www.beuth.de
4、In case of doubt, the German-language original shall be considered authoritative.Document comprises 15 pages 01.13DIN EN 12913:2013-01 2 A comma is used as the decimal marker. National foreword This document (EN 12913:2012) has been prepared by Technical Committee CEN/TC 164 “Water supply” (Secretar
5、iat: AFNOR, France). The responsible German body involved in its preparation was the Normen-ausschuss Wasserwesen (Water Practice Standards Committee), Working Committee NA 119-04-02 AA Wasseraufbereitung. Users of this standard are advised of the reservations stated in the Introduction of the Europ
6、ean Standard and should note that national regulations exist in Germany dealing with water for human consumption, in particular the Trinkwasserverordnung (TrinkwV2001) (German Drinking Water Ordinance). Amendments This standard differs from DIN EN 12913:2006-01 as follows: a) specifications concerni
7、ng hazard and safety related symbols have been brought in line with the “Globally Harmonized System of Classification, Labelling and Packaging of Chemicals (GHS)” (Global harmonisiertes System zur Einstufung und Kennzeichnung von Chemikalien). Previous editions DIN EN 12913: 1999-11, 2006-01 Nationa
8、l Annex NA (informative) Bibliography Verordnung ber die Qualitt von Wasser fr den menschlichen Gebrauch (Trinkwasserverordnung TrinkwV 2001) (German Drinking Water Ordinance), as of 28 November 2011 (BGBI. I p. 2370), as amended by Article 2, Paragraph 19 of the Act of 22 December 2011 (BGBI. I p.
9、3044)*). *) Obtainable from: Bundesministerium der Justiz (German Federal Ministry of Justice) (Internet: http:/www.gesetze-im-internet.de). EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12913 November 2012 ICS 71.100.80 Supersedes EN 12913:2005English Version Products used for treatment of w
10、ater intended for human consumption - Powdered diatomaceous earth Produits utiliss pour le traitement de leau destine la consommation humaine - Terre de diatomes en poudre Produkte zur Aufbereitung von Wasser fr den menschlichen Gebrauch - Kieselgur, pulverfrmig This European Standard was approved b
11、y 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 alteration. Up-to-date lists and bibliographical references concerning such national sta
12、ndards 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
13、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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary
14、, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management
15、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 12913:2012: EEN 12913:2012 (E) Contents Page Foreword 3Introduction . 41 Scope 52 Normative references 53 Terms, definitions and symbols
16、 . 54 Description . 55 Physical properties 66 Chemical properties 67 Specific properties. 78 Test methods 79 Labelling, transportation and storage . 8Annex A (informative) General information on powdered diatomaceous earth . 10Annex B (normative) General rules relating to safety . 12Bibliography 13D
17、IN EN 12913:2013-01 2 EN 12913:2012 (E) Foreword This document (EN 12913:2012) 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, either by publication of an identical
18、 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 CENELEC shall not be held responsible
19、for identifying any or all such patent rights. This document supersedes EN 12913:2005. The significant technical difference between this edition and EN 12913:2005 is as follows: Updating of 9.2 in line with current legislation. According to the CEN/CENELEC Internal Regulations, the national standard
20、s 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, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem
21、bourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 12913:2013-01 3 EN 12913:2012 (E) Introduction In respect of potential adverse effects on the quality of water intended for human consumption caused by
22、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 criteria, existing
23、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 covered by this Europea
24、n Standard is subject to regulation or control by National Authorities. DIN EN 12913:2013-01 4 EN 12913:2012 (E) 1 Scope This European Standard is applicable to powdered diatomaceous earth used for treatment of water intended for human consumption. It describes the characteristics of powdered diatom
25、aceous earth and specifies the requirements and the corresponding test methods for powdered diatomaceous earth and gives information on its use in water treatment. It also determines the rules relating to safe handling and use of powdered diatomaceous earth (see Annex B). 2 Normative references The
26、following documents, in whole or in part, are normatively referenced in this document and 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 12901:19
27、99, Products used for treatment of water intended for human consumption Inorganic supporting 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
28、 For the purposes of this document, the terms, definitions and symbols given in EN 12901:1999 apply. 4 Description 4.1 Identification 4.1.1 Chemical name Not applicable. 4.1.2 Synonym or common names Diatomite, Kieselguhr, Diatomaceous earth, Calcined diatomite, Flux calcined diatomite. 4.1.3 Chemic
29、al formula Not applicable. 4.1.4 CAS Registry numbers 1) 61 790-53-2 Dry and ground; 91 053-39-3 Diatomaceous calcined; 68 855-54-9 Flux calcined. 1) Chemical Abstracts Service Registry Number. DIN EN 12913:2013-01 5 EN 12913:2012 (E) 4.1.5 EINECS reference 2)Calcined 293-303-4. 4.2 Commercial form
30、The product is available in powder forms in many grades differing in permeability. 5 Physical properties 5.1 Appearance The product is a white (flux calcined), pink (calcined), or white to green (natural), powder. 5.2 Particle size distribution 5.2.1 Particle size A mass fraction of at least 95 % sh
31、all have a particle size less than 1 000 m. NOTE Other values can be necessary for certain applications. The particle size distribution is commonly specified as a mass fraction of 95 % less than a given particle size. The particle size distribution shall be within the manufacturers declared values.
32、5.2.2 Uniformity coefficient Not relevant. 5.2.3 Oversize and undersize particles The proportion of oversize and undersize particles shall be within the manufacturers declared values. 5.3 Density bulk density packed The bulk density packed shall be in the range of 150 kg/m3to 550 kg/m3. 6 Chemical p
33、roperties This European Standard specifies the minimum purity requirements for powdered diatomaceous earth used for the treatment of water intended for human consumption. Limits are given for impurities commonly present in the product. Depending on the raw material and the manufacturing process othe
34、r 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 national regulations in order to clarify whether it is of appropriate purity for treatment of water intended for human consumption, taking int
35、o 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 present in significant quantities from the current production process and raw m
36、aterials. If the production process or raw 2) European Inventory of existing Commercial Chemical Substances. DIN EN 12913:2013-01 6 EN 12913:2012 (E) materials lead to significant quantities of impurities, by-products or additives being present, this shall be notified to the user. The composition of
37、 the commercial product shall conform to Table 1. Table 1 Composition of commercial product Parameter Limit in mass fraction % SiO2min 85Mass loss at 150 C max 5 After filling, washing and commissioning of a filter system producing drinking water, powdered diatomaceous earth should not increase the
38、concentrations of chemical parameters (see 1). NOTE Water extractable substances, determined in accordance with the method for powdered materials given in EN 12902, can be used to estimate the leaching of the chemicals specified in EN 12902. 7 Specific properties The permeability shall be within 15
39、% of the manufacturers declared value and the cake density shall be within 5 % of the manufacturers declared value. 8 Test methods 8.1 Sampling Prepare the laboratory sample(s) required by the relevant procedures described in EN 12902. 8.2 Analysis 8.2.1 Particle size distribution The particle size
40、distribution shall be determined in accordance with EN 12902. 8.2.2 Bulk density packed The bulk density packed shall be determined in accordance with EN 12902. 8.2.3 Content of silica The content of silica shall be determined in accordance with EN 12902. 8.2.4 Mass loss at 150 C The mass loss at 15
41、0 C shall be determined using the method for water content described in EN 12902 using a temperature of (150 5) C. 8.2.5 Permeability The permeability shall be determined in accordance with EN 12902. DIN EN 12913:2013-01 7 EN 12913:2012 (E) 8.2.6 Cake density The cake density shall be determined in
42、accordance with EN 12902. 9 Labelling, transportation and storage 9.1 Means of delivery Diatomaceous earth shall be delivered in bags, big bags, or in 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
43、 it shall have been specially cleaned and prepared before use. 9.2 Labelling according to the EU legislation 3)The following labelling requirements shall apply to powdered diatomaceous earth at the date of publication of this European Standard. Hazard pictogram Figure 1 GHS07 Signal word: Warning Ha
44、zard statements: H332: Harmful if inhaled NOTE Precautionary statements (P statements) should be provided by the company being responsible for the marketing of the substance. They should be indicated on the packaging label and in the extended safety data sheet (eSDS) of the substance. The regulation
45、 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 in the regulation by t
46、he person responsible for the marketing of the substance. 9.3 Transportation regulations and labelling Powdered diatomaceous earth is not classified as a dangerous product for road, rail, sea or air transportation. 3) See 2. DIN EN 12913:2013-01 8 EN 12913:2012 (E) Powdered diatomaceous earth is not
47、 listed under a UN Number 4). 9.4 Marking The marking shall include the following: name “Powdered diatomaceous earth“, trade name and grade; net mass; name and the address of supplier and/or manufacturer; statement “this product conforms to EN 12913“. 9.5 Storage 9.5.1 Long-term stability The produc
48、t is stable but hygroscopic. The product can be stored for one or two years if kept dry and away from volatile materials which are adsorbed on the product. 9.5.2 Storage incompatibilities The product shall be kept away from volatile solvents, odorous products and moisture. 4) United Nations Number.
49、DIN EN 12913:2013-01 9 EN 12913:2012 (E) Annex A (informative) General information on powdered diatomaceous earth A.1 Origin A.1.1 Raw materials Powdered diatomaceous earths are produced by mining natural diatomite, which is a deposit of monocellular algae. A.1.2 Manufacturing process Diatomite is dried and ground. Particles over 50 m in size are removed by cyclones or selectors, and then products are calcined in a kiln between 950 C and 1 200 C, dependi
