1、BSI Standards PublicationBS EN 16381:2013Chemicals used for treatmentof swimming pool water Sodium peroxodisulfateBS EN 16381:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 16381:2013.The UK participation in its preparation was entrusted to TechnicalCommit
2、tee 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 responsible for its correctapplication. The British St
3、andards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 77294 8ICS 71.100.80Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 December 2013
4、.Amendments issued since publicationDate Text affectedBS EN 16381:2013EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16381 December 2013 ICS 71.100.80 English Version Chemicals used for treatment of swimming pool water - Sodium peroxodisulfate Produits chimiques utiliss pour le traitement de l
5、eau des piscines - Proxodisulfate de sodium Produkte zur Aufbereitung von Schwimm- und Badebeckenwasser - Natriumperoxodisulfat This European Standard was approved by CEN on 26 October 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
6、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 Centre or to any CEN member. This European Standard exists in three
7、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 the official versions. CEN members are the national standards bodie
8、s 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, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spa
9、in, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwid
10、e for CEN national Members. Ref. No. EN 16381:2013 EBS EN 16381:2013EN 16381:2013 (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 6 3.1.3 Relative molecular mass .6 3.1.4 Empi
11、rical 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 .7 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 pressure 7 3.3.5 Boiling point at 100 kPa 7 3.3.6 Melting point .7 3.
12、3.7 Specific heat .7 3.3.8 Viscosity (dynamic) .7 3.3.9 Critical temperature .7 3.3.10 Critical pressure.8 3.3.11 Physical hardness .8 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 .8 4.4 Chemical parameters 8
13、 5 Test methods 9 6 Labelling - Transportation - Storage 9 6.1 Means of delivery .9 6.2 Labelling according to the EU legislation .9 6.3 Transportation regulations and labelling . 10 6.4 Marking 10 6.5 Storage . 11 6.5.1 Generals . 11 6.5.2 Long term stability 11 6.5.3 Storage incompatibilities . 11
14、 Annex A (informative) General information on sodium peroxodisulfate 12 A.1 Origin . 12 A.2 Use . 12 BS EN 16381:2013EN 16381:2013 (E) 3 Annex B (normative) General rules relating to safety . 13 B.1 Rules for safe handling and use 13 B.2 Emergency procedures . 13 Bibliography 14 BS EN 16381:2013EN 1
15、6381:2013 (E) 4 Foreword This document (EN 16381:2013) 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 or by endorsement,
16、 at the latest by June 2014, and conflicting national standards shall be withdrawn at the latest by June 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 responsible for identifying any or
17、 all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic
18、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 16381:2013EN 16381:2013 (E) 5 Introduction In respect of
19、 potential adverse effects on the quality of water 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 used without restriction in any of the Member States of the EU or EFTA; b) it should be n
20、oted 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 acceptance or approval of the product in any of th
21、e 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. BS EN 16381:2013EN 16381:2013 (E) 6 1 Scope This European Standard is applicable to sodium peroxodisulfate used for treatment of water for swimming
22、 pools. It describes the characteristics of sodium peroxodisulfate and specifies the requirements and the corresponding test methods for sodium peroxodisulfate. It gives information on its use in swimming pool water treatment. It also determines the rules relating to safe handling and use (see Annex
23、 B). 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 document (including any
24、amendments) applies. EN 12926, Chemicals used for treatment of water intended for human consumption Sodium peroxodisulfate 3 Description 3.1 Identification 3.1.1 Chemical name Sodium peroxodisulfate. 3.1.2 Synonym or common name Sodium persulfate. 3.1.3 Relative molecular mass 238,11. 3.1.4 Empirica
25、l formula Na2S2O8. 3.1.5 Chemical formula Na2S2O8. 3.1.6 CAS1)Registry Number 7775-27-1. 3.1.7 EINECS2)reference 231-892-1. 1) Chemical Abstracts Service. 2) European INventory of Existing Commercial Chemical Substances. BS EN 16381:2013EN 16381:2013 (E) 7 3.2 Commercial form Sodium peroxodisulfate
26、is available as a crystalline powder. 3.3 Physical properties 3.3.1 Appearance and odour The product is a white, odourless, crystalline free-flowing salt. 3.3.2 Density The bulk density of the product is approximately 1,15 g/cm3. 3.3.3 Solubility in water The solubility of the product in water is ap
27、proximately: 515 g/l at 10 C; 545 g/l at 20 C; 605 g/l at 40 C; 680 g/l at 60 C. 3.3.4 Vapour pressure Not applicable. 3.3.5 Boiling point at 100 kPa3)Not applicable. 3.3.6 Melting point The product decomposes above 65 C. 3.3.7 Specific heat Not known. 3.3.8 Viscosity (dynamic) Not applicable. 3.3.9
28、 Critical temperature Not applicable. 3) 100 kPa = 1 bar. BS EN 16381:2013EN 16381:2013 (E) 8 3.3.10 Critical pressure Not applicable. 3.3.11 Physical hardness Not applicable. 3.4 Chemical properties Sodium peroxodisulfate is a powerful oxidising agent. Sodium peroxodisulfate also serves as a source
29、 of radicals. The standard reduction potential E0of sodium peroxodisulfate for the reaction: +2228 4S O 2e 2SO (1) is + 2,06 V at 25 C. 4 Purity criteria 4.1 General This European Standard specifies the minimum purity requirements for sodium peroxodisulfate used for the treatment of swimming pools w
30、ater. 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 product should check the nationa
31、l regulations in order to clarify whether it is of appropriate purity for treatment of swimming pool water, taking into account raw water quality, required dosage, contents of other impurities and additives used in the product not stated in the product standard. Limits have been given for impurities
32、 and chemicals 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 leads to significant quantities of impurities, by-products or additives being present, this shall be notified to
33、the user. 4.2 Composition of commercial product The commercial product shall contain not less than a mass fraction of 99 % of Na2S2O8. 4.3 Impurities and main by-products Sodium peroxodisulfate does not contain significant concentrations of impurities or by-products. 4.4 Chemical parameters NOTE For
34、 the purpose of this European Standard, “chemical parameters” are those defined in the EU Directive 98/83/EC of 3 November 1998 (see 1). The content of chemical parameters shall conform to the requirements specified in Table 1. BS EN 16381:2013EN 16381:2013 (E) 9 Table 1 Chemical parameters Paramete
35、r Limit (mg/kg) of Na2S2O8Type 1 Type 2 Arsenic (As) max. 0,05 5 Cadmium (Cd) max. 0,05 2 Chromium (Cr) max. 0,5 5 Mercury (Hg) max. 2 2 Nickel (Ni) max. 0,2 5 Lead (Pb) max. 0,05 5 Antimony (Sb) max. 5 10 Selenium (Se) max. 5 10 NOTE Cyanide is usually not relevant in a strong oxidising medium. Pes
36、ticides and polycyclic aromatic hydrocarbons are not by-products of the manufacturing process. 5 Test methods The sampling and the analytical methods are those described in EN 12926. 6 Labelling - Transportation - Storage 6.1 Means of delivery Sodium peroxodisulfate shall be delivered in polyethylen
37、e bags, with net contents of 1 kg to 50 kg or fibre drums with polyethylene linings, with net contents of 1 kg to 100 kg. Never use paper bags. In order that the purity of the product is not affected, the means of delivery shall not have been used previously for any different product or it shall hav
38、e been specially cleaned and prepared before use. 6.2 Labelling according to the EU legislation 4)The following labelling requirements apply to sodium peroxodisulfate at the date of the publication of this standard: 4) See 2. BS EN 16381:2013EN 16381:2013 (E) 10 Signal word: Danger. Hazard statement
39、s: H272 May intensify fire; oxidiser. H302 Harmful if swallowed. H315 Causes skin irritation. H319 Causes serious eye irritation. H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled. H317 May cause an allergic skin reaction. Precautionary statements (P statements) should b
40、e provided by the company being responsible for the marketing of the substance. They should be indicated on the packaging label and in the extended safety data sheet (eSDS) of the substance. a) GHS07 b) GHS08 c) GHS03 Figure 1 Hazard pictograms The regulation 2, and its amendments for the purposes o
41、f its adaptation to technical and scientific progress, 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 to the criteria in the regulation by the person responsible for the marketing
42、of the substance. 6.3 Transportation regulations and labelling Sodium peroxodisulfate is listed as UN Number 5)1505 RID 6): Class 5.1, Classification Code O2, Packaging Group III; ADR 7): Class 5.1, Classification Code O2, Packaging Group III; IMDG 8): Class 5.1, Packaging Group III, EmS: F-A, S- Q;
43、 IATA 9): Class 5.1, Packaging Group III. 6.4 Marking The marking shall include the following: the name: “sodium peroxodisulfate” and trade name; the net mass; 5) United Nations Number. 6) Regulations concerning International carriage of Dangerous goods by rail. 7) European Agreement concerning the
44、international carriage of Dangerous goods by Road. 8) International Maritime transport of Dangerous Goods. 9) International Air Transport Association. BS EN 16381:2013EN 16381:2013 (E) 11 the name and address of supplier and/or manufacturer; the statement “This product conforms to EN 16381” and type
45、. 6.5 Storage 6.5.1 Generals The product shall be stored in original packages in a cool and dry place, away from any sources of heat or incompatible materials. For more details about use, see Annex A. 6.5.2 Long term stability The product is stable with no decrease in active substance for one year,
46、when the product is stored at below 30 C. 6.5.3 Storage incompatibilities Avoid heat and moisture (decomposes above 65 C). Avoid contact with alkaline or reducing substances. Avoid contact with oxidisable organic substances and combustible materials. Keep away from metals and metal compounds (e.g. c
47、opper, cobalt, nickel, manganese, iron). BS EN 16381:2013EN 16381:2013 (E) 12 Annex A (informative) General information on sodium peroxodisulfate A.1 Origin A.1.1 Raw materials Sodium peroxodisulfate is manufactured from sodium hydrogen sulfate (NaHSO4) and sulfuric acid. A.1.2 Manufacturing process
48、 It is produced by electrolytic oxidation of NaHSO4in sulfuric acid, following by precipitation. A.2 Use A.2.1 Function The product is used to oxidise oxidisable impurities (organic and inorganic) in water. A.2.2 Form in which it is used It is used as delivered, or as an aqueous solution in deminera
49、lised water, containing 20 g/l to 200 g/l of sodium peroxodisulfate. A.2.3 Treatment dose A typical dose is 50 g of sodium peroxodisulfate per cubic metre (m3) of raw water. A.2.4 Means of application The product is usually applied using a metering pump or directly into the swimming pool. A.2.5 Secondary effects Increase of sodium and sulfate content of the treated water. Lowering of the pH value of the water by formation of NaHSO4. A.2.6 Removal of excess product Addition of reducing agents (e.g. SO2,HSO3-, S2O32-). BS EN
