1、August 2013 Translation by DIN-Sprachendienst.English price group 11No 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
2、 71.100.80!%(24“2051517www.din.deDDIN EN 15076Chemicals used for treatment of swimming pool water Sodium hydroxide;English version EN 15076:2013,English translation of DIN EN 15076:2013-08Produkte zur Aufbereitung von Schwimm- und Badebeckenwasser Natriumhydroxid;Englische Fassung EN 15076:2013,Engl
3、ische bersetzung von DIN EN 15076:2013-08Produits chimiques utiliss pour le traitement de leau des piscines Hydroxyde de sodium;Version anglaise EN 15076:2013,Traduction anglaise de DIN EN 15076:2013-08SupersedesDIN EN 15076:2006-09www.beuth.deDocument comprises pagesIn case of doubt, the German-lan
4、guage original shall be considered authoritative.1607.13 DIN EN 15076:2013-08 2 A comma is used as the decimal marker. National foreword This document (EN 15076:2013) has been prepared by Technical Committee CEN/TC 164 “Water supply” (Secretariat: AFNOR, France). The responsible German body involved
5、 in its preparation was the Normenausschuss Wasserwesen (Water Practice Standards Committee), Working Committee NA 119-04-02 AA Wasseraufbereitung. Amendments This standard differs from DIN EN 15076:2006-09 as follows: a) specifications concerning hazard and safety related symbols have been brought
6、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 15076: 2006-09 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15076 May 2013 ICS
7、 71.100.80 Supersedes EN 15076:2006English Version Chemicals used for treatment of swimming pool water - Sodium hydroxide Produits chimiques utiliss pour le traitement de leau des piscines - Hydroxyde de sodium Produkte zur Aufbereitung von Schwimm- und Badebeckenwasser - Natriumhydroxid This Europe
8、an Standard was approved by CEN on 21 March 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 a national standard without any alteration. Up-to-date lists and bibliographical references conce
9、rning 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 member int
10、o 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, France, G
11、ermany, 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 COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE
12、 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 15076:2013: EEN 15076:2013 (E) 2 Contents Page Foreword . 3 Introduction 4 1 Scope 5 2 Normative references . 5 3
13、 Description . 5 3.1 Identification . 5 3.2 Commercial forms 6 3.3 Physical properties 6 3.4 Chemical properties . 8 4 Purity criteria 8 4.1 General . 8 4.2 Composition of commercial product . 8 4.3 Impurities and main by-products 9 4.4 Chemical parameters . 9 5 Test methods 9 6 Labelling Transporta
14、tion Storage 10 6.1 Means of delivery . 10 6.2 Labelling according to EU legislation . 10 6.3 Transportation regulations and labelling 11 6.4 Marking . 11 6.5 Storage . 11 Annex A (informative) General information on sodium hydroxide . 12 A.1 Origin 12 A.2 Use 12 Annex B (normative) General rules re
15、lating to safety . 13 B.1 Rules for safe handling and use 13 B.2 Emergency procedures 13 Bibliography 14 DIN EN 15076:2013-08 EN 15076:2013 (E) 3 Foreword This document (EN 15076:2013) has been prepared by Technical Committee CEN/TC 164 “Water supply”, the secretariat of which is held by AFNOR. This
16、 European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2013, and conflicting national standards shall be withdrawn at the latest by November 2013. Attention is drawn to the possibility that some of
17、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 such patent rights. This document supersedes EN 15076:2006. Significant technical differences between this edition and EN 15076:2006 are as follows: Replacem
18、ent of warning and safety precautions notes by labelling according to Regulation (EC) No 1272/2008 3. 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,
19、 Cyprus, 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 the U
20、nited Kingdom. DIN EN 15076:2013-08 EN 15076:2013 (E) 4 Introduction In respect of potential adverse effects on the quality of water intended for swimming pools caused by the product covered by this European Standard: a) this European Standard provides no information as to whether the product may be
21、 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 force. NOTE 1 Conformity with this E
22、uropean 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. NOTE 2 This product is a biocide and needs to comply wi
23、th the relevant legislation in force. In the European Union, at the time of publication, this legislation is Directive 1998/8/EC 1. DIN EN 15076:2013-08 EN 15076:2013 (E) 5 1 Scope This European Standard is applicable to sodium hydroxide solution used directly or for the production of formulations f
24、or treating swimming pool water. It describes the characteristics and specifies the requirements and the corresponding test methods for sodium hydroxide. It gives information on its use for treating swimming pool water and determines the rules relating to safe handling and use (see Annex B). 2 Norma
25、tive 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)
26、applies. EN 896, Chemicals used for treatment of water intended for human consumption Sodium hydroxide 3 Description 3.1 Identification 3.1.1 Chemical name Sodium hydroxide. 3.1.2 Synonym or common name Caustic soda. 3.1.3 Relative molecular mass 40,0. 3.1.4 Empirical formula NaOH. 3.1.5 Chemical fo
27、rmula NaOH. 3.1.6 CAS Registry Number 1)1310-73-2. 3.1.7 EINECS reference 2)215-185-5. 1) Chemical Abstracts Service Registry Number. 2) European Inventory of Existing Commercial Chemical Substances. DIN EN 15076:2013-08 EN 15076:2013 (E) 6 3.2 Commercial forms The product is available as flakes, pe
28、arls, solid, or as an aqueous solution of different concentrations. 3.3 Physical properties 3.3.1 Appearance Solid: the product is white, deliquescent. Liquid: the product is a clear solution, slightly turbid colourless solution, slightly viscous. 3.3.2 Density Solid: the density of this product is
29、2,1 g/cm3. The bulk density of pearls is 1,2 kg/dm3.Liquid: the density of solution is 1,52 g/ml for a product concentration of mass fraction of 50 % at 20 C. 3.3.3 Solubility in water The product is highly soluble at all temperatures above 20 C (partial crystallisation occurs above concentration of
30、 mass fraction of 55 % (see Figure 1). DIN EN 15076:2013-08 EN 15076:2013 (E) 7 Key 1 temperature in C. 2 NaOH concentration in mass fraction in % Figure 1 Solubility of sodium hydroxide 3.3.4 Vapour pressure Solution of concentration of mass fraction of 50 %: 120 Pa at 20 C; 450 Pa at 40 C; 5 000 P
31、a at 80 C. 3.3.5 Boiling point at 100 kPa 3)145 C for a solution of concentration of mass fraction of 50 %. 3.3.6 Crystallisation point + 12 C for a solution of concentration of mass fraction of 50 % (see Figure 1). 3) 100 kPa = 1 bar. DIN EN 15076:2013-08 EN 15076:2013 (E) 8 3.3.7 Specific heat 3 2
32、20 J/(kg K) at 20 C for a solution of concentration of mass fraction of 50 %. 3.3.8 Viscosity (dynamic) For a solution of concentration of mass fraction of 50 %: 100 Pa.s at 20 C; 25 Pa.s at 40 C; 5 Pa.s at 80 C. 3.3.9 Critical temperature Not applicable. 3.3.10 Critical pressure Not applicable. 3.3
33、.11 Physical hardness Not applicable. 3.4 Chemical properties The solutions of sodium hydroxide are strongly alkaline. Dilution of sodium hydroxide is very exothermic. 4 Purity criteria 4.1 General This European Standard specifies the minimum purity requirements for sodium hydroxide used for the tre
34、atment of water for swimming pools. 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 p
35、roduct should check the national regulations in order to clarify whether it is of appropriate purity for treatment of water for swimming pools, taking into account raw water quality, required dosage, contents of other impurities and additives used in the products not stated in this product standard.
36、 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 materials. If the production process or raw materials lead to significant quantities of impurities, by-products or additives being
37、 present, this shall be notified to the user. 4.2 Composition of commercial product The product shall contain not less than a mass fraction of 96 % of NaOHfor the solid form. Typical concentration for solutions of sodium hydroxide is either a mass fraction of 50 % or 30 %, and shall be in any case w
38、ithin the manufacturers stated tolerance. DIN EN 15076:2013-08 EN 15076:2013 (E) 9 4.3 Impurities and main by-products The product shall conform to the requirements specified in Table 1. The concentration limits refer to pure NaOH mass fraction of 100 %. Table 1 Impurities Impurity Limit in mass fra
39、ction in % of NaOH Sodium chloride (NaCl)amax. 2,4 Sodium carbonate (Na2CO3)bmax. 0,4 Sodium chlorate (NaClO3)cmax. 0,7 aToo high concentrations can cause problems with some ion exchange resins. bSodium carbonate is formed in contact with atmospheric carbon dioxide. cThe presence of any oxidising ag
40、ent in sodium hydroxide is to be avoided. 4.4 Chemical parameters The product shall conform to the requirements specified in Table 2. Table 2 Chemical parameters Parameter Limit in mg/kg of NaOH Type 1 Type 2 Arsenic (As) max. 2 10 Cadmium (Cd) max. 1 5 Chromium (Cr) max. 1 10 Mercury (Hg) max. 0,1
41、1 Nickel (Ni) max. 2 10 Lead (Pb) max. 5 20 Antimony (Sb) max. 5 5 Selenium (Se) max. 5 5 NOTE Cyanides, pesticides and polycyclic aromatic hydrocarbons are not relevant in sodium hydroxide. For parametric values of sodium hydroxide on trace metal content in drinking water, see 2. 5 Test methods The
42、 sampling and the analytical methods shall be those described in EN 896. DIN EN 15076:2013-08 EN 15076:2013 (E) 10 6 Labelling Transportation Storage 6.1 Means of delivery Sodium hydroxide may be delivered in containers, drums, cans or bottles. To ensure the purity of the product, the means of deliv
43、ery shall not have been previously used for any different product or it shall have been specially cleaned and prepared before use. 6.2 Labelling according to EU legislation4)The following labelling requirements shall apply to sodium hydroxide at the date of publication of this European Standard. Sig
44、nal word: Danger Classification and hazard statement: H 314 Causes severe skin burns and eye damage Figure 2 GHS 05 The regulation 3 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
45、to the criteria in the regulation by the person responsible for the marketing of the substance. 4) See 3. DIN EN 15076:2013-08 EN 15076:2013 (E) 11 6.3 Transportation regulations and labelling Sodium hydroxide solution is listed as UN Number 5): 1824. The labelling requirements are the following at
46、the date of publication of this European Standard: RID 6)/ADR 7) : class 8, classification code C5, packing group II. IMDG 8): class 8, packing group II. IATA9): class 8, packing group II. 6.4 Marking The marking shall include the following information: name “sodium hydroxide“, trade name and type;
47、net mass; name and the address of the supplier and/or manufacturer; statement “this product conforms to EN 15076“. 6.5 Storage 6.5.1 Material Avoid contact with aluminium, zinc or galvanised steel material. Mild steel, polyester or polypropylene are suitable materials. To avoid any iron contaminatio
48、n in the product, a suitable lining of the steel tank may be used. 6.5.2 Long term stability Absorption of carbon dioxide from the ambient air leads to formation of sodium carbonate. 6.5.3 Storage incompatibilities Avoid contact with some metals such as zinc, aluminium, copper, tin or their alloys, which produce hydrogen. A violent reaction is to be expected when sodium hydroxide comes in contact with concentrated acids and organic chemicals, particularly chlorinated hydrocarbons.
