1、September 2016 English price group 13No 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).ICS 71.100.80This standard has bee
2、n included in the body of DVGW Technical Rules.!%0N“2561343www.din.deDIN EN 12672Chemicals used for treatment of water intended for human consumption Potassium permanganate;English version EN 12672:2016,English translation of DIN EN 12672:2016-09Produkte zur Aufbereitung von Wasser fr den menschlich
3、en Gebrauch Kaliumpermanganat;Englische Fassung EN 12672:2016,Englische bersetzung von DIN EN 12672:2016-09Produits chimiques utiliss pour le traitement de leau destine la consommation humaine Permanganate de potassium;Version anglaise EN 12672:2016,Traduction anglaise de DIN EN 12672:2016-09Superse
4、desDIN EN 12672:200810www.beuth.deDocument comprises 22 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.09.16 DIN EN 12672:2016-09 2 A comma is used as the decimal marker. National foreword This document (EN 12672:2016) has bee
5、n prepared by Technical Committee CEN/TC 164 “Water supply” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was DIN-Normenausschuss Wasserwesen (DIN Standards Committee Water Practice), DIN-DVGW Joint Working Committee NA 119-07-13 AA Aufbereitungsstoffe und -an
6、lagen. Users of this standard are advised of the reservations stated in the Introduction of the European Standard and should note that national regulations exist in Germany dealing with water for human consumption, in particular the Trinkwasserverordnung (TrinkwV 2001) (German Drinking Water Ordinan
7、ce). The DIN Standards corresponding to the International Standards referred to in this document are as follows, whereby EN ISO Standards are only listed below if these have not been published as DIN EN ISO Standards with the same number: EN ISO 3696 DIN ISO 3696 ISO 3856-2 DIN ISO 3856-2 Amendments
8、 This standard differs from DIN EN 12672:2008-10 as follows: a) specifications concerning hazard and safety related symbols have been brought in line with the Globally Harmonized System of Classification, Labelling and Packaging of Chemicals (GHS); b) details regarding the ADR/RID classification and
9、 marking have been modified; c) normative references and the Bibliography have been updated. Previous editions DIN 19619: 1975-02 DIN EN 12672: 2000-11, 2008-10 DIN EN 12672:2016-09 3 National Annex NA (informative) Bibliography DIN ISO 3696, Water for analytical laboratory use Specification and tes
10、t methods DIN ISO 3856-2, Paints and varnishes Determination of “soluble” metal content Determination of antimony content Verordnung ber die Qualitt von Wasser fr den menschlichen Gebrauch (Trinkwasserverordnung TrinkwV 2001) (German Drinking Water Ordinance), as of 10 March 2016 (BGBI. I, p. 459)*)
11、Verordnung zum Schutz vor Gefahrstoffen (Gefahrstoffverordnung GefStoffV) (Ordinance on the protection against hazardous substances (Hazardous Substances Ordinance GefStoffV) as of 26 November 2010 (BGBl. I, pp. 1643, 1644) as amended by Article 2 of the Act of 3 February 2015 (BGBI. I p. 49) *)Obta
12、inable from: Bundesministerium der Justiz (German Federal Ministry of Justice) (Internet: http:/www.gesetze-im-internet.de). DIN EN 12672:2016-09 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12672 May 2016 ICS 71.100.80 Supersedes EN 12672:2008English Versi
13、on Chemicals used for treatment of water intended for human consumption - Potassium permanganate Produits chimiques utiliss pour le traitement de leau destine la consommation humaine - Permanganate de potassium Produkte zur Aufbereitung von Wasser fr den menschlichen Gebrauch - Kaliumpermanganat Thi
14、s European Standard was approved by CEN on 18 March 2016. 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 referenc
15、es 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 me
16、mber 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, Former Yugoslav Republic of Macedonia, F
17、rance, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES
18、KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12672:2016 EEN 12672:2016 (E) 2 Contents Page European foreword . 3 Introduction 4 1 Scope 5 2
19、 Normative references 5 3 Description 5 4 Purity criteria . 8 5 Test methods 9 6 Labelling - Transportation - Storage . 13 Annex A (informative) General information on potassium permanganate . 16 Annex B (normative) General rules relating to safety . 17 Bibliography . 18 DIN EN 12672:2016-09 EN 1267
20、2:2016 (E) 3 European foreword This document (EN 12672:2016) 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 text or by endors
21、ement, at the latest by November 2016 and conflicting national standards shall be withdrawn at the latest by November 2016. 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 ident
22、ifying any or all such patent rights. This document supersedes EN 12672:2008. The significant technical changes between this edition and EN 12672:2008 are as follows: deletion of reference to Directive 67/548/EEC of 27th June 1967 in order to take into account the latest Regulation in force (see 2);
23、 amendment of subclause 6.2 according to 2. 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, Former
24、 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 the United Kingdom. DIN EN 12672:2016-09 EN 12672:2016 (E) 4 In
25、troduction 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 information as to whether the product may be used without restriction in any of the Member States o
26、f 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 force. NOTE Conformity with this European Standard does not confer or imply acceptance or a
27、pproval 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. DIN EN 12672:2016-09 EN 12672:2016 (E) 5 1 Scope This European Standard is applicable to potassium permanganate
28、used for treatment of water intended for human consumption. It describes the characteristics of potassium permanganate and specifies the requirements and the corresponding test methods for potassium permanganate. It gives information on its use in water treatment. It also provides general informatio
29、n on potassium permanganate (see Annex A) and determines the rules relating to its safe handling and use (see Annex B). 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, on
30、ly the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1233, Water quality - Determination of chromium - Atomic absorption spectrometric methods EN ISO 3696, Water for analytical laboratory use - Specification and te
31、st methods (ISO 3696) EN ISO 11885, Water quality - Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES) (ISO 11885) EN ISO 12846, Water quality - Determination of mercury - Method using atomic absorption spectrometry (AAS) with and without enrichm
32、ent (ISO 12846) ISO 3165, Sampling of chemical products for industrial use - Safety in sampling ISO 3856-2, Paints and varnishes - Determination of “soluble“ metal content Part 2: Determination of antimony content - Flame atomic absorption spectrometric method and Rhodamine B spectrophotometric meth
33、od ISO 6206, Chemical products for industrial use - Sampling - Vocabulary ISO 8213, Chemical products for industrial use - Sampling techniques - Solid chemical products in the form of particles varying from powders to coarse lumps ISO 8288:1986, Water quality - Determination of cobalt, nickel, coppe
34、r, zinc, cadmium and lead - Flame atomic absorption spectrometric methods ISO 17378-2, Water quality - Determination of arsenic and antimony - Part 2: Method using hydride generation atomic absorption spectrometry (HG-AAS) ISO/TS 17379-2, Water quality - Determination of selenium - Part 2: Method us
35、ing hydride generation atomic absorption spectrometry (HG-AAS) 3 Description 3.1 Identification 3.1.1 Chemical name Potassium permanganate. 3.1.2 Synonym or common name Permanganate of potash. DIN EN 12672:2016-09 EN 12672:2016 (E) 6 3.1.3 Relative molecular mass 158,04. 3.1.4 Empirical formula KMnO
36、4.3.1.5 Chemical formula KMnO4.3.1.6 CAS Registry Number 1)7722-64-7. 3.1.7 EINECS reference 2)231-760-3. 3.2 Commercial forms Solid product, consisting of rhombic crystals. For water treatment the commercial forms normally used are: technical grade to be dosed in liquid form, dissolved in water; fr
37、ee-flowing grade to be dosed either in solid form or dissolved in water. 3.3 Physical properties 3.3.1 Appearance Crystals of a dark purple or bronze-like colour; almost opaque by transmitted light and of a blue metallic lustre by reflected light. The free-flowing grade can present a different colou
38、r, usually greyish. 3.3.2 Density The density of the product is 2,70 g/cm3at 20 C. The bulk density is between 1,45 g/cm3and 1,60 g/cm3. 3.3.3 Solubility (in water) The product is soluble in water. The solubility in water is given in Table 1. Aqueous solubility: KMnO4(g/l )= 30.55 + 0.796 (T, C) + 0
39、039 2 (T, C)2where T is the solution temperature (C). 1) Chemicals Abstracts Service Registry Number. 2) European Inventory of Existing Commercial Chemical Substances. DIN EN 12672:2016-09 EN 12672:2016 (E) 7 Table 1 Solubility in water Temperature C KMnO4g/l 5 35,51 10 42,43 15 51,31 20 62,15 25 7
40、4,95 30 89,71 3.3.4 Vapour pressure Not applicable. 3.3.5 Boiling point at 100 kPa3)Not applicable. 3.3.6 Melting point Product decomposes at 240 C with emission of oxygen. 3.3.7 Specific heat 744,2 kJ/kg.K at 20 C. 3.3.8 Viscosity (dynamic) Not applicable. 3.3.9 Critical temperature Not applicable.
41、 3.3.10 Critical pressure Not applicable. 3.3.11 Physical hardness Not applicable. 3.4 Chemical properties Potassium permanganate is a very strong oxidizing agent. It is soluble in water and also dissolves in various organic solvents (e.g. methanol, ethanol). It decomposes at high temperature and al
42、so in the presence of concentrated acids, hydrogen peroxide and organic compounds in general. It hydrolyzes in contact with air, reducing to manganese dioxide (MnO2), a solid, brown to black colour product. 3) 100 kPa = 1 bar. DIN EN 12672:2016-09 EN 12672:2016 (E) 8 4 Purity criteria 4.1 General Th
43、is European Standard specifies the minimum purity requirements for potassium permanganate 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 other impurities may
44、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 into account raw wat
45、er quality, required dosage, contents of other impurities and additives used in the product not stated in the product standard. Limits have been given for impurities and chemicals parameters where these are likely to be present in significant quantities from the current production process and raw ma
46、terials. If the production process or raw materials leads to significant quantities of impurities, by-products or additives being present, this shall be notified to the user. 4.2 Composition of commercial product The potassium permanganate content shall not be less than a mass fraction of 98,5 % in
47、the technical grade, and a mass fraction of 97,5 % in the free-flowing grade. 4.3 Impurities and main by-products MnO2(water insolubles): less than a mass fraction of 1,00 %. Moisture (H2O): less than a mass fraction of 0,50 %. 4.4 Chemical parameters NOTE For the purpose of this standard, “chemical
48、 parameters“ are those defined in the EU Directive 98/83/EC of 3 November 1998 (see 1). The content of chemical parameters shall conform to the requirements specified in Table 2. Table 2 Chemical parameters Parameter Limit mg/kg of product Arsenic (As) max. 20 Cadmium (Cd) max. 50 Chromium (Cr) max.
49、 50 Mercury (Hg) max. 10 Nickel (Ni) max. 50 Lead (Pb) max. 50 Antimony (Sb) max. 50 Selenium (Se) max. 50 NOTE Cyanide, which does not exist in a strong oxidizing medium such as potassium permanganate, is not a relevant chemical parameter. Pesticides and polycyclic aromatic hydrocarbons are not by-products of the manufacturing process. DIN EN 12672:2016-09 EN 12672:2016 (E) 9 4.5 Flowability of freeflowing grade The free-flowing g
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