1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 15073:2013Chemicals used for treatmentof swimming pool water Sodium dichloroisocyanurate,dihydrateBS EN 15073:2013 BRITISH STANDARDNational forewordThis British Standard is
2、 the UK implementation of EN 15073:2013. Itsupersedes BS EN 15073:2006+A1:2008 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee CII/59, Chemicals for drinking water treatment.A list of organizations represented on this committee can beobtained on request
3、 to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 80016 0ICS 13.060.25; 71.100.80Compliance with a Br
4、itish Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 June 2013.Amendments issued since publicationDate Text affectedBS EN 15073:2013EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN
5、15073 May 2013 ICS 71.100.80 Supersedes EN 15073:2006+A1:2008English Version Chemicals used for treatment of swimming pool water - Sodium dichloroisocyanurate, dihydrate Produits chimiques utiliss pour le traitement de leau des piscines - Dichloroisocyanurate de sodium, dihydrat Produkte zur Aufbere
6、itung von Schwimm- und Badebeckenwasser - Natriumdichlorisocyanurat-Dihydrat This European Standard was approved by CEN on 28 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 nationa
7、l 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). A versio
8、n 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, Cyprus, Cze
9、ch 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 Kingdom. E
10、UROPEAN 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 15073:2013: EBS EN 15073:
11、2013EN 15073:2013 (E) 2 Contents Page Foreword . 3 Introduction 4 1 Scope 5 2 Normative reference . 5 3 Description . 5 4 Purity criteria 7 5 Test methods 8 6 Labelling - Transportation - Storage . 8 Annex A (informative) General information on sodium dichloroisocyanurate, dihydrate 12 Annex B (norm
12、ative) General rules relating to safety . 14 Bibliography 15 BS EN 15073:2013EN 15073:2013 (E) 3 Foreword This document (EN 15073:2013) 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
13、 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 the elements of this document may be the subject
14、of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 15073:2006+A1:2008. Significant technical differences between this edition and EN 15073:2006+A1:2008 are as follows: Replacement of warning and safety precaut
15、ions notes by labelling according to Regulation (EC) No 1272/2008. 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, E
16、stonia, 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 United Kingdom. BS EN 15073:2013EN 1
17、5073:2013 (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, the following statements apply: a) This European Standard provides no information as to whether the product may be used wi
18、thout 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 European
19、Standard does not confer or imply acceptance or approval of the products in any of the Member States of the EU or EFTA. The use of the products 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 with the
20、 relevant legislation in force. In the European Union, at the time of publication, this legislation is Directive 1998/8/EC 1. BS EN 15073:2013EN 15073:2013 (E) 5 1 Scope This European Standard is applicable to sodium dichloroisocyanurate, dihydrate used directly or used to prepare commercial formula
21、tions for disinfecting swimming pool water. It describes the characteristics of sodium dichloroisocyanurate, dehydrate and specifies the requirements and the corresponding test methods for sodium dichloroisocyanurate, dihydrate. It gives information on its use for treating swimming pool water. It al
22、so determines the rules relating to safe handling and use (see Annex B). 2 Normative reference 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 refere
23、nces, the latest edition of the referenced document (including any amendments) applies. EN 12932:2008, Chemicals used for treatment of water intended for human consumption Chemicals for emergency use Sodium dichloroisocyanurate, dihydrate 3 Description 3.1 Identification 3.1.1 Chemical name 1-sodium
24、, 3, 5-dichloro-1,3,5-triazine-2, 4, 6-trione dihydrate. 3.1.2 Synonym or common name Sodium dichloroisocyanurate, dihydrate. Troclosene sodium, dihydrate 3.1.3 Relative molecular mass 256,02. 3.1.4 Empirical formula C3N3O3Cl2Na.2H2O.BS EN 15073:2013EN 15073:2013 (E) 6 3.1.5 Chemical formula 3.1.6 C
25、AS Registry Number 1)51580-86-0. 3.1.7 EINECS reference 2)Not listed. 3.2 Commercial form The product is available in various granular forms. 3.3 Physical properties 3.3.1 Appearance and odour The product is a white granular solid with chlorinous odour. 3.3.2 Density The bulk density of the product
26、is approximately 0,9 g/cm3. 3.3.3 Solubility in water The solubility of the product in water is 291 g/l at 25 C. 3.3.4 Vapour pressure Not applicable. 3.3.5 Boiling point at 100 kPa 3)Not applicable, the product decomposes before fusion. 1) Chemical Abstracts Service Registry Number.2) European Inve
27、ntory of Existing Commercial Chemical Substances.3) 100 kPa = 1 bar.BS EN 15073:2013EN 15073:2013 (E) 7 3.3.6 Melting point Not applicable. 3.3.7 Specific heat (1,090 0,040) kJ/kg.K at 20 C. 3.3.8 Viscosity Not applicable. 3.3.9 Critical temperature Not applicable. 3.3.10 Critical pressure Not appli
28、cable. 3.3.11 Physical hardness Not applicable. 3.4 Chemical properties The product is a strong oxidant. It liberates chlorine by hydrolysis. 4 Purity criteria 4.1 General This European Standard specifies the minimum purity requirements for dihydrate sodium dichloroisocyanurate used for the treatmen
29、t 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, the user shall be notified and, when necessary, the relevant authorities. Users of this product sho
30、uld 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 product not stated in this product standard. Limits hav
31、e 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 present, t
32、he user shall be notified. 4.2 Composition of commercial product The product shall contain at least a mass fraction of 55 % of available chlorine as calculated in accordance with the corresponding method given in EN 12932:2008, 5.2.1. BS EN 15073:2013EN 15073:2013 (E) 8 4.3 Impurities and main by-pr
33、oducts The water content shall be less than a mass fraction of 14 % of the product. The sodium chloride content shall be less than a mass fraction of 0,05 % of the product. 4.4 Chemical parameters The product shall conform to the requirements specified in Table 1. Table 1 Chemical parameters Element
34、 Limit mg/kg of product Type 1 Type 2 Arsenic (As) max. 10 10 Cadmium (Cd) max. 1 1 Chromium (Cr) max. 6 10 Mercury (Hg) max. 0,02 0,02 Nickel (Ni) max. 3 3 Lead (Pb) max. 4 4 Antimony (Sb) max. 5 5 Selenium (Se) max. 1 1 NOTE Cyanide, which does not exist in a strong oxidising medium such as sodium
35、 dichloroisocyanurate, dihydrate, is not a relevant chemical parameter. Pesticides and polycyclic aromatic hydrocarbons are not by-products of the manufacturing process. For parametric values of sodium dichloroisocyanurate on trace metal content in drinking water, see 2. 5 Test methods The sampling
36、and the analytical methods are those described in EN 12932. 6 Labelling - Transportation - Storage 6.1 Means of delivery The product shall be delivered in fibre, polyethylene drums or semi-bulk containers. To ensure the purity of the product, the means of delivery shall not have previously been used
37、 for any different product or it shall have been specially cleaned and prepared before use. 6.2 Labelling according to the EU legislation 4)The following labelling requirements shall apply to sodium dichloroisocyanurate dihydrate at the date of the publication of this European Standard. 4) See 3. BS
38、 EN 15073:2013EN 15073:2013 (E) 9 Pictograms Figure 1 GHS 07 Figure 2 GHS 09 Signal word : Danger Hazard statement: H 302 Harmful if swallowed H400 Very toxic to aquatic life The regulation 3, and its amendments for the purposes of its adaptation to technical and scientific progress, contains a list
39、 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 the person responsible for the marketing of the substance. BS EN 15073:2013EN 15073:2013 (E) 10 6.3 Transportat
40、ion regulations and labelling Sodium dichloroisocyanurate, dihydrate acid is listed as UN Number 5)3077 and is classified as dangerous goods. RID 6) : class 9, classification code M7; packing group III; ADR 7) : class 9, classification code M7; packing group III; IMDG 8) : class 9; IATA 9) : class 9
41、. 6.4 Marking The marking shall include the following: name “sodium dichloroisocyanurate, dihydrate”, trade name and type; net mass; name and the address of supplier and/or manufacturer; statement “this product conforms to EN 15073“. 6.5 Storage 6.5.1 General The product shall be stored in original
42、package, firmly closed in a cool and dry place, away from any sources of heat or incompatible materials. 6.5.2 Long term stability When stored in above conditions, the product is stable for at least three years. 5)United Nations Number.6)International carriage of Dangerous goods by rail.7)European A
43、greement concerning the international carriage of Dangerous goods by Road.8)International maritime transport of Dangerous Goods.9)International Air Transport Association.BS EN 15073:2013EN 15073:2013 (E) 11 6.5.3 Storage incompatibilities Store the product on its own if possible. Keep it away from:
44、strong acids; water; nitrogenated products; organic solvents; hydrocarbons; peroxides; hypochlorites; oils, greases and organic materials; ammonium salts; basic products. BS EN 15073:2013EN 15073:2013 (E) 12 Annex A (informative) General information on sodium dichloroisocyanurate, dihydrate A.1 Orig
45、in A.1.1 Raw materials Sodium dichloroisocyanurate, dihydrate is manufactured from isocyanuric acid (CNOH)3, sodium hydroxide (NaOH) and chlorine (Cl2). A.1.2 Manufacturing process Sodium dichloroisocyanurate, dihydrate is produced by chlorination of disodium cyanurate (Na2H(NCO)3) using chlorine (C
46、l2) and neutralisation with sodium hydroxide (NaOH). Disodium cyanurate is obtained by the action of sodium hydroxide on isocyanuric acid. A.2 Use A.2.1 Function The product is used as a disinfectant of swimming pool water. It is an indirect source of free chlorine (HOCl) when dissolved in water, vi
47、a an organic carrier substance (sodium cyanurate, C3N3O3H2Na): C3N3O3Cl2Na + 2H2O - C3N3O3H2Na + 2HOCl (A.1) As the disinfectant (HOCl) is used up, more chlorine atoms are released from sodium dichloroisocyanurate to form hypochlorous acid. This results in an enrichment of sodium isocyanurate in the
48、 pool water, which cannot be removed by the water treatment process. Only dilution with fresh water keeps the sodium isocyanurate concentration at a satisfactory level. If the sodium isocyanurate concentration becomes too high, unsatisfactory disinfection can result. The automatic amperometric monit
49、oring of free chlorine residual is negatively affected by sodium isocyanurate. A.2.2 Form in which it is used The product is used in tablet and granular form. A.2.3 Treatment dose The treatment dose is subject to national regulations, depending on the required free chlorine concentration in the swimming pool water. In order to have 2,5 mg/l free chlorine concentration, one should add 4,47g/m3of sodium dichloroisocyanurate, dihydrate. A.2.4 Means of application The product is dissolved either directly or using a di
