1、September 2012 Translation by DIN-Sprachendienst.English price group 20No 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).
2、ICS 71.100.80!$3“1915816www.din.deDDIN EN 890Chemicals used for treatment of water intended for humanconsumption Iron (III) sulfate solution;English version EN 890:2012,English translation of DIN EN 890:2012-09Produkte zur Aufbereitung von Wasser fr den menschlichen Gebrauch Eisen(III)sulfat-Lsung;E
3、nglische Fassung EN 890:2012,Englische bersetzung von DIN EN 890:2012-09Produits chimiques utiliss pour le traitement de leau destine la consommationhumaine Sulfate de fer (III) liquide;Version anglaise EN 890:2012,Traduction anglaise de DIN EN 890:2012-09SupersedesDIN EN 890:2005-03www.beuth.deIn c
4、ase of doubt, the German-language original shall be considered authoritative.Document comprises 45 pages 08.12 DIN EN 890:2012-09 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 164 “Water supply” (Secretariat: AFNOR, France).
5、The responsible German body involved in its preparation was the Normenausschuss 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 European Standard and shoul
6、d note that national regulations exist in Germany dealing with water for human consumption, in particular the Trinkwasserverordnung (TrinkwV2001) (German Drinking Water Ordinance). The DIN Standards corresponding to the International Standards referred to in this document are as follows, whereby EN
7、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 Amendments This standard differs from DIN EN 890:2005-03 as follows: a) the name of the product has been changed; b) the maximum allowable percentage by mass of
8、 insoluble matter in the product has been increased from 0,3 % to 0,5 %; c) the information on the risk and safety labelling of the product has been brought in line with the new regulations (see 6.2 and 2); d) the method for the determination of iron (III) sulfate has been modified: potassium dichro
9、mate has been substituted with ceric sulfate; e) general information has been supplemented and specifications concerning the cleaning of the storage tanks have been added. Previous editions DIN 19602: 1956-03, 1969-05, 1987-02 DIN EN 890: 1999-04, 2005-03 DIN EN 890:2012-09 3 National Annex NA (info
10、rmative) Bibliography DIN ISO 3696, Water for analytical laboratory use Specification and test methods Verordnung ber die Qualitt von Wasser fr den menschlichen Gebrauch (Trinkwasserverordnung TrinkwV 2001) (German Drinking Water Ordinance), as of 28 November 2011, Bundesgesetzblatt (German Federal
11、Law Gazette) Part 1 (2011), No. 61, pp. 2370 2396 ) Recorded in the DITR database of DIN Software GmbH, obtainable from Beuth Verlag GmbH, 10772 Berlin, Germany. DIN EN 890:2012-09 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 890 July 2012 ICS 71.100.80 Sup
12、ersedes EN 890:2004English Version Chemicals used for treatment of water intended for human consumption - Iron (III) sulfate solution Produits chimiques utiliss pour le traitement de leau destine la consommation humaine - Sulfate de fer (III) liquide Produkte zur Aufbereitung von Wasser fr den mensc
13、hlichen Gebrauch - Eisen(III)sulfat-Lsung This European Standard was approved by CEN on 24 May 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
14、-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 by trans
15、lation 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, Finlan
16、d, 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 STANDARDIZATION
17、 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 890:2012: EEN 890:2012 (E) 2 Contents Page Foreword 4Introduct
18、ion . 51 Scope 62 Normative references 63 Description . 63.1 Identification . 63.2 Commercial forms . 73.3 Physical properties 73.4 Chemical properties 84 Purity criteria 84.1 General 84.2 Composition of commercial product . 84.3 Impurities and main by-products . 84.4 Chemical parameters 95 Test met
19、hods 95.1 Sampling . 95.2 Analyses . 106 Labelling Transportation Storage 126.1 Means of delivery . 126.2 Labelling according to the EU Legislation 136.3 Transportation regulations and labelling 136.4 Marking . 146.5 Storage 14Annex A (informative) General information on iron (III) sulfate solution
20、15A.1 Origin 15A.1.1 Raw materials . 15A.1.2 Manufacturing process . 15A.2 Quality of commercial product . 15A.3 Use 19A.3.1 Function 19A.3.2 Form in which it is used 19A.3.3 Treatment dose 19A.3.4 Means of application . 19A.3.5 Secondary effects 19A.3.6 Removal of excess product 19Annex B (normativ
21、e) Analytical methods . 20B.1 Determination of iron (III) sulfate . 20B.1.1 Total iron . 20B.1.2 Determination of iron (II) ( Fe (II) . 21B.1.3 Determination of iron (III) ( Fe (III) . 22B.2 Determination of manganese . 22B.2.1 General 22B.2.2 Principle 22B.2.3 Reagents . 22B.2.4 Apparatus . 23B.2.5
22、 Procedure . 23B.3 Determination of insoluble matters . 24B.3.1 General 24B.3.2 Principle 24B.3.3 Reagents . 24DIN EN 890:2012-09 EN 890:2012 (E) 3 B.3.4 Apparatus . 24B.3.5 Procedure . 25B.3.6 Calculation . 25B.3.7 Precision . 25B.4 Determination of free acid 25B.4.1 General 25B.4.2 Principle 25B.4
23、.3 Interferences 26B.4.4 Reagents . 26B.4.5 Apparatus . 26B.4.6 Procedure . 26B.4.7 Calculation . 26B.5 Determination of arsenic, antimony and selenium by hydride generation atomic absorption spectrometry (AAS) . 27B.5.1 General 27B.5.2 Principle 27B.5.3 Reagents . 27B.5.4 Apparatus . 28B.5.5 Proced
24、ure . 28B.6 Determination of mercury by cold vapour atomic absorption spectrometry (AAS) . 30B.6.1 General 30B.6.2 Principle 31B.6.3 Reagents . 31B.6.4 Apparatus . 31B.6.5 Procedure . 32B.7 Determination of cadmium, chromium, nickel and lead by graphite furnace atomic absorption spectrometry (AAS) .
25、 32B.7.1 General 32B.7.2 Principle 33B.7.3 Reagents . 33B.7.4 Apparatus . 33B.7.5 Procedure . 34Annex C (informative) Reduction of Fe (III) on a silver column 36C.1 General 36C.2 Principle 36C.3 Reagents . 36C.4 Apparatus . 36C.5 Procedure . 36C.5.1 Preparation of the silver powder 36C.5.2 Reduction
26、 of Fe (III) . 37Annex D (informative) Determination of cadmium, chromium, nickel and lead (inductively coupled plasma optical emission spectrometry (ICP/OES) 38D.1 General 38D.2 Principle 38D.3 Reagents . 38D.4 Apparatus . 39D.5 Procedure . 39D.5.1 Spectrometer settings . 39D.5.2 Calibration, measu
27、rement and calculation of the elements cadmium, chromium, nickel and lead 39Annex E (normative) General rules relating to safety . 40E.1 Rules for safe handling and use 40E.2 Emergency procedures . 40E.2.1 First aid . 40E.2.2 Spillage . 40E.2.3 Fire 40Bibliography 41DIN EN 890:2012-09 EN 890:2012 (E
28、) 4 Foreword This document (EN 890:2012) 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 text or by endorsement, at the latest
29、 by January 2013, and conflicting national standards shall be withdrawn at the latest by January 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 for identifying any or all suc
30、h patent rights. This document supersedes EN 890:2004. Significant technical differences between EN 890:2012 and EN 890:2004 are as follows: a) change of the maximum allowed percentage of mass fraction of insoluble matter in the product from 0,3 % to 0,5 % (see Table 2); b) update of the information
31、 of risk and safety labelling of the product to comply with the new regulations (see 6.2 and 2); c) change of the method for determination of iron (III) sulfate in order to avoid the use of hazardous potassium dichromate (see B.1). According to the CEN/CENELEC Internal Regulations, the national stan
32、dards 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, L
33、uxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 890:2012-09 EN 890:2012 (E) 5 Introduction In respect of potential adverse effects on the quality of water intended for human consumption, caused by
34、 the product covered by this document: a) this document 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 national regulati
35、ons concerning the use and/or the characteristics of this product remain in force. NOTE Conformity with this 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 document is subject to regulation
36、 or control by National Authorities. DIN EN 890:2012-09 EN 890:2012 (E) 6 1 Scope This European Standard is applicable to iron (III) sulfate solution of various iron and/or acid contents (see 3.2) used for treatment of water intended for human consumption. It describes the characteristics of iron (I
37、II) sulfate solution and specifies the requirements and the corresponding analytical methods for iron (III) sulfate solution (analytical methods are given in Annex B) and gives information on its use in water treatment. It also determines the rules relating to safe handling and use of iron (III) sul
38、fate solution (see Annex E). 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, only the edition cited applies. For undated references, the latest edition of the referenced
39、document (including any amendments) applies. EN 10028-7, Flat products made of steels for pressure purposes Part 7: Stainless steels EN 10088-1, Stainless steels Part 1: List of stainless steels EN ISO 3696, Water for analytical laboratory use Specification and test methods (ISO 3696) ISO 3165, Samp
40、ling of chemical products for industrial use Safety in sampling ISO 5790:1979, Inorganic chemical products for industrial use General method for determination of chloride content Mercurimetric method ISO 6206, Chemical products for industrial use Sampling Vocabulary 3 Description 3.1 Identification
41、3.1.1 Chemical name Iron (III) sulfate, solution. 3.1.2 Synonym or common names Ferric sulfate liquor, red iron liquor. 3.1.3 Relative molecular mass 399,87. 3.1.4 Empirical formula Fe2(SO4)3. 3.1.5 Chemical formula Fe2(SO4)3. 3.1.6 CAS Registry Number 1)10028-22-5. 1) Chemical Abstract Service Regi
42、stry Number. DIN EN 890:2012-09 EN 890:2012 (E) 7 3.1.7 EINECS reference 2)233-072-9. 3.2 Commercial forms Different classes of solution exist varying in iron content and acidity. Examples are given in Table 1. Table 1 Different classes Classes Fe (III) Fe2(SO4)3Free H2SO4Density at 15 C Mass fracti
43、on in % Mass fraction c in %Mass fraction in % g/ml Class A 11,20 to 11,80 40,00 to 42,14 1,00 1,49 to 1,53 Class B 11,20 to 11,80 36,10 to 39,24 0 a1,45 to 1,47 Class C 8,40 to 8,80 30,00 to 31,43 10,00 to 11,00 1,46 to 1,48 Class D 12,50 to 12,80 44,60 to 45,70 1,00 1,57 to 1,60 Class E 12,50 to 1
44、2,80 40,70 to 42,80 0 a1,52 to 1,56 Class F 13,50 to 14,00 44,78 to 47,55 0 b1,58 to 1,63 aDeficiency of SO42-, expressed as H2SO4, is a mass fraction of 3 % to 4 % of the product. bDeficiency of SO42-, expressed as H2SO4, is a mass fraction of 2,5 % to 3,5 % of the product. cFe2(SO4)3by direct stoi
45、chiometry with subtraction of calculated SO42-deficiency where appropriate on classes B, E and F. 3.3 Physical properties 3.3.1 Appearance The iron (III) sulfate solution is a red/brown solution. 3.3.2 Density See Table 1. 3.3.3 Solubility (in water) The iron (III) sulfate solution is dilutable down
46、 to about a mass fraction of 1 % of Fe2(SO4)3. Below this concentration, hydrolysis and formation of hydroxide will occur. 3.3.4 Vapour pressure Not known. 3.3.5 Boiling point at 100 kPa 3)Higher than 100 C. 3.3.6 Freezing point Lower than - 15 C. 2) European Inventory of Existing Commercial Chemica
47、l Substances. 3) 100 kPa = 1 bar. DIN EN 890:2012-09 EN 890:2012 (E) 8 3.3.7 Specific heat Not known. 3.3.8 Viscosity (dynamic) The viscosity of the commonly used solution varies in the range of 5 mPa.s to 130 mPa.s at 10 C. 3.3.9 Critical temperature Not applicable. 3.3.10 Critical pressure Not applicable. 3.3.11 Physical hardness Not applicable. 3.4 Chemical properties The solutions of iron (III) s
