1、December 2013 Translation by DIN-Sprachendienst.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).I
2、CS 71.100.80!%*vF“2078335www.din.deDDIN EN 16370Chemicals used for treatment of water intended for humanconsumption Sodium chloride for on site electrochlorination using membrane cells;English version EN 16370:2013,English translation of DIN EN 16370:2013-12Produkte zur Aufbereitung von Wasser fr de
3、n menschlichen Gebrauch Natriumchlorid zur elektrochemischen Erzeugung von Chlor vor Ort mittelsMembranzellen;Englische Fassung EN 16370:2013,Englische bersetzung von DIN EN 16370:2013-12Produits chimiques utiliss pour le traitement de leau destine la consommationhumaine Chlorure de sodium pour la g
4、nration lectrochimique de chlore au moyendlectrolyseurs membrane;Version anglaise EN 16370:2013,Traduction anglaise de DIN EN 16370:2013-12www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 29 pages 11.13 DIN EN 16370:2013-12 2 A comma is
5、used as the decimal marker. National foreword This document (EN 16370:2013) has been prepared by Technical Committee CEN/TC 164 “Water supply” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was the Normenausschuss Wasserwesen (Water Practice Standards Committee
6、), 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 should note that national regulations exist in Germany dealing with water for human consumption, in particular the Trinkwasserverord
7、nung (TrinkwV 2001) (German Drinking Water Ordinance). 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
8、 DIN ISO 3696 National Annex NA (informative) 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 201
9、1 (BGBI. (German Federal Law Gazette) I, 2011, No. 61, pp. 2370-2396), as amended by the second Ordinance amending the Trinkwasserverordnung (TrinkwVndV 2) (German Drinking Water Ordinance) of 05 December 2012 (BGBl. (German Federal Law Gazette) I, 2012, No. 58, pp. 2562-2567)*)*)Obtainable from: Bu
10、ndesministerium der Justiz (German Federal Ministry of Justice) (Internet: http:/www.gesetze-im-internet.de). EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16370 August 2013 ICS 71.100.80 English Version Chemicals used for treatment of water intended for human consumption - Sodium chloride fo
11、r on site electrochlorination using membrane cells Produits chimiques utiliss pour le traitement de leau destine la consommation humaine - Chlorure de sodium pour la gnration lectrochimique de chlore au moyen dlectrolyseurs membrane Produkte zur Aufbereitung von Wasser fr den menschlichen Gebrauch -
12、 Natriumchlorid zur elektrochemischen Erzeugung von Chlor vor Ort mittels Membranzellen This European Standard was approved by CEN on 5 July 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of
13、a national standard without any alteration. 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).
14、 A version in any other language made 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, Cy
15、prus, Czech Republic, Denmark, Estonia, 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 K
16、ingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16370:2013: EEN
17、16370:2013 (E) 2 Contents Page Foreword . 4 Introduction 5 1 Scope 6 2 Normative references . 6 3 Description . 6 3.1 Identification . 6 3.1.1 Chemical name . 6 3.1.2 Synonym or common name . 7 3.1.3 Relative molecular mass 7 3.1.4 Empirical formula . 7 3.1.5 Chemical formula . 7 3.1.6 CAS Registry
18、Number 7 3.1.7 EINECS Reference 7 3.2 Commercial forms 7 3.3 Physical properties 7 3.3.1 Appearance 7 3.3.2 Density 7 3.3.3 Solubility (in water) 7 3.3.4 Vapour pressure . 8 3.3.5 Boiling point at 100 kPa . 8 3.3.6 Melting point . 8 3.3.7 Specific heat . 8 3.3.8 Viscosity (dynamic) 8 3.3.9 Critical
19、temperature . 8 3.3.10 Critical pressure . 9 3.3.11 Physical hardness 9 3.4 Chemical properties . 9 4 Purity criteria 9 4.1 General . 9 4.2 Composition of commercial product . 9 4.3 Impurities and by-products . 10 4.4 Chemical parameters . 10 5 Test methods 11 5.1 Sampling . 11 5.2 Analyses . 11 5.2
20、.1 Main product 11 5.2.2 Impurities 12 5.2.3 Chemical parameters . 15 6 Labelling Transportation Storage 15 6.1 Means of delivery . 15 6.2 Labelling according to the EU legislation . 16 6.3 Transportation regulations and labelling 16 6.4 Marking . 16 6.5 Storage . 16 6.5.1 Long term stability . 16 6
21、.5.2 Storage incompatibilities . 16 Annex A (informative) General information on sodium chloride for electrochlorination by membrane cells 17 DIN EN 16370:2013-12 EN 16370:2013 (E) 3 A.1 Origin 17 A.2 Chemical composition . 17 A.3 Use 17 A.3.1 Function 17 A.3.2 Form in which the product is used 17 A
22、.3.3 Consumption of salt for electrochlorination . 18 A.3.4 Means of application 18 A.3.5 Secondary effects. 18 A.3.6 Removal of excess product . 18 A.4 Rules for safe handling and use 18 A.5 Emergency procedures 18 A.5.1 First aid . 18 A.5.2 Spillage . 18 A.5.3 Fire 18 Annex B (normative) Analytica
23、l methods Determination of antimony, cadmium, chromium, iron, lead, manganese, nickel and selenium (inductively coupled plasma optical emission spectrometry (ICP-OES) . 19 B.1 General . 19 B.2 Principle 19 B.3 Reagents . 19 B.4 Apparatus . 20 B.4.1 Spectrometer ICP-OES . 20 B.5 Procedure . 21 B.5.1
24、Test portion 21 B.5.2 Test solution . 21 B.5.3 Calibration and verification solutions . 21 B.5.4 Determination . 21 B.6 Expression of results . 23 B.6.1 Evaluation . 23 B.6.2 Calculation 23 B.6.3 Repeatability and reproducibility . 23 B.6.4 Limit of quantification (LOQ) . 25 Bibliography 27 DIN EN 1
25、6370:2013-12 EN 16370:2013 (E) 4 Foreword This document (EN 16370:2013) 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 o
26、r by endorsement, at the latest by February 2014, and conflicting national standards shall be withdrawn at the latest by February 2014. 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 responsib
27、le for identifying any or all such patent rights. According to the CEN-CENELEC 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,
28、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 the United Kingdom. DIN EN 16370:2013-12 EN 16370:2013 (E
29、) 5 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 information as to whether the product may be used without restriction in any of the Member S
30、tates 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 force. NOTE Conformity with this European Standard does not confer or imply acceptan
31、ce 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. DIN EN 16370:2013-12 EN 16370:2013 (E) 6 1 Scope This European Standard is applicable to sodium chloride
32、intended for on site electrochlorination of water intended for human consumption using membrane cells. It describes the characteristics and specifies the requirements and the corresponding test methods for sodium chloride (see Annex B). It gives information on its use in water treatment. 2 Normative
33、 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 document (including any amendments) appl
34、ies. EN 901:2013, Chemicals used for treatment of water intended for human consumption Sodium hypochlorite EN 973:2009, Chemicals used for treatment of water intended for human consumption Sodium chloride for regeneration of ion exchangers EN 14805:2008, Chemicals used for treatment of water intende
35、d for human consumption Sodium chloride for on site electrochlorination using non-membrane technology EN ISO 3696, Water for analytical laboratory use Specification and test methods (ISO 3696) ISO 2479, Sodium chloride for industrial use Determination of matter insoluble in water or in acid and prep
36、aration of principal solutions for other determinations ISO 2480, Sodium chloride for industrial use Determination of sulphate content Barium sulphate gravimetric method ISO 2482, Sodium chloride for industrial use Determination of calcium and magnesium contents EDTA complexometric methods ISO 2483,
37、 Sodium chloride for industrial use Determination of the loss of mass at 110 C ISO 3165, Sampling of chemical products for industrial use Safety in sampling ISO 6206, Chemical products for industrial use Sampling Vocabulary ISO 6227, Chemical products for industrial use General method for determinat
38、ion of chloride ions Potentiometric method ISO 8213, Chemical products for industrial use Sampling techniques Solid chemical products in the form of particles varying from powders to coarse lumps 3 Description 3.1 Identification 3.1.1 Chemical name Sodium chloride. DIN EN 16370:2013-12 EN 16370:2013
39、 (E) 7 3.1.2 Synonym or common name Salt. 3.1.3 Relative molecular mass 58,45. 3.1.4 Empirical formula NaCl. 3.1.5 Chemical formula NaCl. 3.1.6 CAS Registry Number1)7647-14-5. 3.1.7 EINECS Reference2)231-598-3. 3.2 Commercial forms The product is available as rock salt, sea salt or evaporated salt,
40、and it is supplied as free-flowing crystals or their compacted forms. 3.3 Physical properties 3.3.1 Appearance The product is white and crystalline. 3.3.2 Density The density of the solid crystal is 2,16 g/cm3at 20 C. The bulk density depends on the particle size distribution. 3.3.3 Solubility (in w
41、ater) The solubility of the product depends on the temperature as given in Figure 1. 1) Chemical Abstract Service Registry Number. 2) European Inventory of Existing Commercial Chemical Substances. DIN EN 16370:2013-12 EN 16370:2013 (E) 8 Key 1 Transition point NaCl NaCl 2 H2O Temperature C NaCl solu
42、tion Mass fraction in g/100 g - 10 25,00 0 26,34 10 26,35 20 26,43 30 26,56 40 26,71 50 26,89 60 27,09 70 27,30 80 27,53 90 27,80 100 28,12 Figure 1 Solubility curve for sodium chloride in water 3.3.4 Vapour pressure Not applicable. 3.3.5 Boiling point at 100 kPa3)Not applicable. 3.3.6 Melting point
43、 802 C. 3.3.7 Specific heat Approximately 850 J/(kg K) at 25 C for the solid. 3.3.8 Viscosity (dynamic) The viscosity of the saturated solution at 20 C is approximately 1,9 mPa s. 3.3.9 Critical temperature Not applicable. 3) 100 kPa = 1 bar. DIN EN 16370:2013-12 EN 16370:2013 (E) 9 3.3.10 Critical
44、pressure Not applicable. 3.3.11 Physical hardness The hardness of solid salt is given as 2 to 2,5 on the Mohs scale of hardness. 3.4 Chemical properties Sodium chloride is stable, non-volatile and aqueous solutions have good electrical conductivity. Sodium chloride reacts with a number of acids (e.g
45、. sulfuric acid, phosphoric acid) and strong oxidising agents. The reactions are often complex and require heat for completion. NOTE Under certain conditions, a sodium chloride solution can cause corrosion of metallic surfaces. 4 Purity criteria 4.1 General This European Standard specifies the minim
46、um purity requirements for sodium chloride for on site electrochlorination of water intended for human consumption using membrane cells. The basic quality of the applied salt shall meet the requirements of Codex Alimentarius for Food Grade Salt, because all components of the electrolysed salt are ad
47、ded to drinking water. As the treatment chemical produced by this process is chlorine or sodium hypochlorite, limits have also been calculated from the requirements of EN 901 and of EN 973 under consideration of the demand of minimisation for those impurities commonly present in the product and the
48、chemical parameters. 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 national 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, required dosage, contents of other impurities and additiv
