1、BSI Standards PublicationBS EN 15077:2013Chemicals used for treatmentof swimming pool water Sodium hypochloriteBS EN 15077:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 15077:2013. Itsupersedes BS EN 15077:2006 which is withdrawn.The UK participation in i
2、ts preparation was entrusted to TechnicalCommittee CII/59, Chemicals for drinking water treatment.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are respons
3、ible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 79926 6ICS 13.060.25; 71.100.80Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theS
4、tandards Policy and Strategy Committee on 31 August 2013.Amendments issued since publicationDate Text affectedBS EN 15077:2013EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15077 May 2013 ICS 71.100.80 Supersedes EN 15077:2006English Version Chemicals used for treatment of swimming pool water
5、- Sodium hypochlorite Produits chimiques utiliss pour le traitement de leau des piscines - Hypochlorite de sodium Produkte zur Aufbereitung von Schwimm- und Badebeckenwasser - Natriumhypochlorit This European Standard was approved by CEN on 14 March 2013. CEN members are bound to comply with the CEN
6、/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 concerning such national standards may be obtained on application to the CEN-CENELEC Management Cen
7、tre 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 into its own language and notified to the CEN-CENELEC Management Centre has the same status as th
8、e 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, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Nether
9、lands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. 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 exploi
10、tation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15077:2013: EBS EN 15077:2013EN 15077:2013 (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
11、or common names . 6 3.1.3 Relative molecular mass 6 3.1.4 Empirical formula . 6 3.1.5 Chemical formula . 6 3.1.6 CAS Registry Number 6 3.1.7 EINECS reference . 6 3.2 Commercial form 6 3.3 Physical properties 7 3.3.1 Appearance and odour 7 3.3.2 Density 7 3.3.3 Solubility in water. 7 3.3.4 Vapour pre
12、ssure . 7 3.3.5 Boiling point at 100 kPa . 7 3.3.6 Crystallisation and freezing point . 7 3.3.7 Specific heat . 7 3.3.8 Viscosity (dynamic) 7 3.3.9 Critical temperature . 7 3.3.10 Critical pressure . 7 3.3.11 Physical hardness 7 3.4 Chemical properties . 7 4 Purity criteria 8 4.1 General . 8 4.2 Com
13、position of commercial product . 8 4.3 Impurities and main by-products 8 4.4 Chemical parameters . 8 5 Test methods 9 6 Labelling - Transportation - Storage . 9 6.1 Means of delivery . 9 6.2 Labelling according to EU legislation . 10 6.3 Transportation regulations and labelling 11 6.4 Marking . 11 6
14、.5 Storage . 11 6.5.1 General . 11 6.5.2 Long-term stability . 11 6.5.3 Storage incompatibilities . 11 Annex A (informative) General information on sodium hypochlorite . 13 A.1 Origin 13 A.1.1 Raw materials . 13 A.1.2 Manufacturing process 13 A.2 Use 13 A.2.1 Function 13 A.2.2 Form in which it is us
15、ed . 13 BS EN 15077:2013EN 15077:2013 (E) 3 A.2.3 Treatment dose. 13 A.2.4 Means of application 13 A.2.5 Secondary effects 13 A.2.6 Removal of excess product . 13 Annex B (normative) General rules relating to safety . 14 B.1 Rules for safe handling and use 14 B.2 Emergency procedures 14 B.2.1 First
16、aid . 14 B.2.2 Spillage . 14 B.2.3 Fire 14 Bibliography 15 BS EN 15077:2013EN 15077:2013 (E) 4 Foreword This document (EN 15077:2013) 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 n
17、ational 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 of
18、 patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 15077:2006. Significant technical differences between this edition and EN 15077:2006 are as follows: Replacement of warning and safety precautions notes by labe
19、lling 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, Cyprus, Czech Republic, Denmark, Estonia, Finland,
20、 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 15077:2013EN 15077:2013 (E) 5
21、Introduction In respect of potential adverse effects on the quality of water for swimming pools caused by the product covered by this European Standard, the following statements apply: This European Standard provides no information as to whether the product may be used without restriction in any of
22、the Member States of the EU or EFTA. 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 standard does not confer or imp
23、ly acceptance or approval of the product in any of the Member States of the EU or EFTA. 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 with the relevant legislation in force. In th
24、e European Union, at the time of publication, this legislation is Directive 1998/8/EC 1. BS EN 15077:2013EN 15077:2013 (E) 6 1 Scope This European Standard is applicable to sodium hypochlorite used directly or for the production of formulations for treating swimming pool water. It describes the char
25、acteristics of sodium hypochlorite and specifies the requirements and the corresponding test methods for sodium hypochlorite. It gives information on its use for treating swimming pool water and determines the rules relating to safe handling and use of sodium hypochlorite (see Annex B). 2 Normative
26、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) appli
27、es. EN 901, Chemicals used for treatment of water intended for human consumption Sodium hypochlorite 3 Description 3.1 Identification 3.1.1 Chemical name Sodium hypochlorite. 3.1.2 Synonym or common names Liquid bleach, soda bleach, bleach lye. 3.1.3 Relative molecular mass 74,44. 3.1.4 Empirical fo
28、rmula NaClO. 3.1.5 Chemical formula NaClO. 3.1.6 CAS Registry Number1)7681-52-9. 3.1.7 EINECS reference2)231-668-3. 3.2 Commercial form The product is supplied as an aqueous solution with an available (active) chlorine concentration up to a mass fraction of 18 %. 1) Chemical Abstracts Service Regist
29、ry Number. 2) European Inventory of Existing Commercial Chemical Substances. BS EN 15077:2013EN 15077:2013 (E) 7 3.3 Physical properties 3.3.1 Appearance and odour The product is a clear yellowish-green solution with a faint chlorinous odour. 3.3.2 Density The density of the product varies between 1
30、,13 g/ml and 1,30 g/ml at 20 C. 3.3.3 Solubility in water The product is capable of being mixed with water in any proportion. 3.3.4 Vapour pressure Approximately 2,5 kPaat 20 C. 3.3.5 Boiling point at 100 kPa3)Not applicable. 3.3.6 Crystallisation and freezing point At approximately -10 C, crystalli
31、sation of NaOCl.6H2O starts. Freezing of the concentrated product takes place between - 20 C and - 30 C. 3.3.7 Specific heat The specific heat is 3,48 kJ/(kg.K) for a solution with an available active chlorine concentration of mass fraction between 14 % and 15 %. 3.3.8 Viscosity (dynamic) 2,6 mPa s
32、at 20 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 product is an alkaline solution with a pH value greater than 11 at 20 C. It reacts with acids and acidic salts to form chlorine. 3) 100 kP
33、a = 1 bar. BS EN 15077:2013EN 15077:2013 (E) 8 Vigorous reactions occur with reducing chemicals. It is a strong oxidant (ERedfor (ClO-) = 0,89 V). ClO- + 2H+ +2e - Cl - + H2O 4 Purity criteria 4.1 General This European Standard specifies the minimum purity requirements for sodium hypochlorite used f
34、or treating 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, and when necessary the relevant authorities, shall be notified. Users of the produ
35、ct should check the national regulations to clarify whether it is of appropriate purity for treating water for swimming pools, taking into account raw water quality, required dosage, contents of other impurities and additives used in the product that are not stated in this product standard. Limits h
36、ave 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 the presence of significant amounts of impurities, by-products or additives,
37、the user shall be notified. 4.2 Composition of commercial product Sodium hypochlorite is available only in solutions with concentrations up to 18 % active chlorine at the time of delivery by the producer. Common concentrated products contain a minimum of 12 % active chlorine. Diluted solutions are a
38、lso available. The concentration of sodium hypochlorite shall be equal to or greater than the value specified by the manufacturer. 4.3 Impurities and main by-products The product contains sodium chloride (NaCl) in equimolar amounts at minimum, and a small portion of sodium hydroxide (NaOH) which kee
39、ps the product alkaline. Therefore, a small amount of sodium carbonate (Na2CO3) can also be present. The sodium chlorate (NaClO3) content shall not exceed a mass fraction of 5,4 % of available chlorine at the time of delivery by the producer. The product shall be visibly free from deposits or suspen
40、ded matter. NOTE Sodium chlorate is a by-product of the manufacturing process and can be formed during storage (see 6.5.1). 4.4 Chemical parameters The product shall conform to the requirements specified in Table 1. BS EN 15077:2013EN 15077:2013 (E) 9 Table 1 Chemical parameters Parameter Limit in m
41、g/kg of available chlorine Type 1 Type 2 Arsenic (As) max. 1 5 Antimony (Sb) max. 20 25 Cadmium (Cd) max. 2,5 5 Chromium (Cr) max. 2,5 5 Lead (Pb) max. 15 15 Mercury (Hg) max. 3,5 5 Nickel (Ni) max. 2,5 10 Selenium (Se) max. 20 25 Limit in g/kg of available chlorine Sodium bromateamax. 2,5 5,0 aSodi
42、um bromate is a by-product of the manufacturing process. NOTE Cyanide, which does not exist in a strong oxidising medium such as sodium hypochlorite, is not a relevant chemical parameter. Pesticides and polycyclic aromatic hydrocarbons are not by-products of the manufacturing process. For parametric
43、 values of sodium hypochlorite on trace metal content in drinking water, see 2. 5 Test methods The methods for sampling and analysis shall be those specified in EN 901. 6 Labelling - Transportation - Storage 6.1 Means of delivery Sodium hypochlorite shall be delivered in: a) containers of polyethyle
44、ne or polyvinyl chloride (PVC) with external glass fibre reinforcement (GFR); b) steel tank wagons lined with rubber or coated with suitable plastics. The containers shall be closed in such a manner so that no pressure can build up inside and no liquid can escape. The closure shall be protected from
45、 unintentional opening. To ensure the purity of the product is not affected, the means of delivery shall not have been previously used for any different product or it shall have been specially cleaned and prepared before use. BS EN 15077:2013EN 15077:2013 (E) 10 6.2 Labelling according to EU legisla
46、tion4)The following labelling requirements shall apply to sodium hypochlorite at the date of the publication of this European Standard. More than or equal to 5 % of active chlorine (mass fraction) Figure 1 GHS 05 Figure 2 GHS 09 Signal word: Danger Hazard statements: H314: Causes severe skin burns a
47、nd eye damage. H400: Very toxic to aquatic life. EUH031: Contact with acids liberates toxic gas (chlorine). 4) See 3. BS EN 15077:2013EN 15077:2013 (E) 11 The regulation 3, and its amendments for the purposes of its adaptation to technical and scientific progress, contains a list of substances class
48、ified by the EU. It contains only a single entry for classification and labelling of the substance however, which is not appropriate for the various solutions placed on the market, since the hazards vary at different concentrations depending on the individual content of free chlorine and free alkali
49、. No classification therefore for diluted solutions can be given here. Diluted solutions and 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. 6.3 Transportation regulations and labelling Sodium hypochlorite is listed as UN Number5)1791. RID6)ADR7): class 8, classification code C9; packing group III. IMDG8): class 8. IATA9): class 8. 6.4 Marking The marking shall include the following
