1、BSI Standards PublicationBS EN 15362:2014Chemicals used for treatmentof swimming pool water Sodium carbonateBS EN 15362:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 15362:2014. Itsupersedes BS EN 15362:2007 which is withdrawn.The UK participation in its
2、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 responsibl
3、e for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 83801 9ICS 13.060.20; 71.100.80Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStan
4、dards Policy and Strategy Committee on 31 May 2014.Amendments issued since publicationDate Text affectedBS EN 15362:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15362 May 2014 ICS 71.100.80 Supersedes EN 15362:2007English Version Chemicals used for treatment of swimming pool water - Sodi
5、um carbonate Produits chimiques utiliss pour le traitement de leau des piscines - Carbonate de sodium Produkte zur Aufbereitung von Schwimm- und Badebeckenwasser - Natriumcarbonat This European Standard was approved by CEN on 20 March 2014. CEN members are bound to comply with the CEN/CENELEC Intern
6、al 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 Centre or to any C
7、EN 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 the official vers
8、ions. 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, Netherlands, Norway,
9、Poland, Portugal, Romania, Slovakia, Slovenia, Spain, 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 2014 CEN All rights of exploitat
10、ion in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15362:2014 EBS EN 15362:2014EN 15362:2014 (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
11、name 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 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 7 3.3.5 Boiling poi
12、nt at 100 kPa 7 3.3.6 Melting point .7 3.3.7 Specific heat .7 3.3.8 Viscosity (dynamic) .7 3.3.9 Critical temperature .8 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
13、 by-products .8 4.4 Chemical parameters 9 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 . 10 6.5.1 General . 10 6.5.2 Long term stability 10
14、6.5.3 Storage incompatibilities . 10 Annex A (informative) General information on sodium carbonate . 11 A.1 Origin . 11 A.1.1 Raw materials 11 BS EN 15362:2014EN 15362:2014 (E) 3 A.1.2 Manufacturing process . 11 A.2 Use 11 A.2.1 Function 11 A.2.2 Form in which the product is used 11 A.2.3 Treatment
15、dose 11 A.2.4 Means of application . 11 A.2.5 Secondary effects 11 A.2.6 Removal of excess product 11 Annex B (normative) General rules relating to safety . 12 B.1 Rules for safe handling and use 12 B.2 Emergency procedures . 12 B.2.1 First aid . 12 B.2.2 Spillage . 12 B.2.3 Fire 12 Bibliography 13
16、BS EN 15362:2014EN 15362:2014 (E) 4 Foreword This document (EN 15362:2014) 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 tex
17、t or by endorsement, at the latest by November 2014 and conflicting national standards shall be withdrawn at the latest by November 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 respons
18、ible for identifying any or all such patent rights. This document supersedes EN 15362:2007. The significant technical difference between this edition and EN 15362:2007 is as follows: updating of 6.2 in line with current legislation. According to the CEN-CENELEC Internal Regulations, the national sta
19、ndards 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 of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
20、Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 15362:2014EN 15362:2014 (E) 5 Introduction In respect of the potential adverse effects on the quality of swimming pool water caused by the product c
21、overed by this document: a) this document 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 noted that, while awaiting the adoption of verifiable European criteria, existing national regulations concerning
22、 the use and/or the characteristics of this product remain in force. NOTE Conformity with this document 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 document is subject to regulation or control by
23、 National Authorities. BS EN 15362:2014EN 15362:2014 (E) 6 1 Scope This European Standard is applicable to sodium carbonate used directly, or for the production of formulations, for the treatment of water for swimming pools. It describes the characteristics of sodium carbonate and specifies the requ
24、irements and the corresponding test methods for sodium carbonate. It provides information on its use in swimming pool water treatment. It also determines the rules relating to safe handling and use of sodium carbonate (see Annex B). 2 Normative references The following documents, in whole or in part
25、, are normatively referenced in this document and care 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) applies. EN 897, Chemicals used for treatment of water inte
26、nded for human consumption - Sodium carbonate 3 Description 3.1 Identification 3.1.1 Chemical name Sodium carbonate. 3.1.2 Synonym or common name Soda ash, anhydrous sodium carbonate, light soda ash, heavy soda ash. 3.1.3 Relative molecular mass 105,99. 3.1.4 Empirical formula Na2CO3.3.1.5 Chemical
27、formula Na2CO3.3.1.6 CAS Registry Number1)497-19-8. 1) Chemical Abstracts Service Registry Number. BS EN 15362:2014EN 15362:2014 (E) 7 3.1.7 EINECS reference2)207-838-8. 3.2 Commercial forms The product is available as dry powder or fine granules and is described as light soda or heavy soda accordin
28、g to bulk density (see 3.3.2). 3.3 Physical properties 3.3.1 Appearance The product is a white powder or crystals, slightly hygroscopic. 3.3.2 Density The density of this product is 2,53 g/cm3. The bulk density is: ranging from 0,5 kg/dm3to 0,65 kg/dm3(light soda ash); ranging from 0,8 kg/dm3to 1,2
29、kg/dm3(heavy soda ash). 3.3.3 Solubility in water The product is soluble at 212 g/l at 20 C. 3.3.4 Vapour pressure Not applicable. 3.3.5 Boiling point at 100 kPa3)Not applicable. 3.3.6 Melting point 851 C. 3.3.7 Specific heat 1,043 J/(kg. K). 3.3.8 Viscosity (dynamic) Not applicable. 2) European Inv
30、entory of Existing Commercial Chemical Substances. 3) 100 kPa = 1 bar. BS EN 15362:2014EN 15362:2014 (E) 8 3.3.9 Critical temperature Not applicable. 3.3.10 Critical pressure Not applicable. 3.3.11 Physical hardness The hardness of solid sodium carbonate is given as 1 to 2 on the Mohs scale of hardn
31、ess. 3.4 Chemical properties Sodium carbonate reacts exothermically with acids with the formation of carbon dioxide. Sodium carbonate is slightly hygroscopic and dissolution in water is an exothermic reaction. 4 Purity criteria 4.1 General This European Standard specifies the minimum purity requirem
32、ents for sodium carbonate used for the treatment of swimming pool water. 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 r
33、elevant authorities. Users of this product should check the national 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 products not s
34、tated in this product standard. 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 leads to significant quantities of impurities
35、, by-products or additives being 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 99 % of Na2CO3. 4.3 Impurities and main by-products The product shall conform to the requirements specified in Table 1. The c
36、oncentration limits refer to pure Na2CO3. Table 1 Impurities Impurity Limit in mg/kg of Na2CO3Iron (II) amax. 20 Insoluble matter bmax. 200 aIron(II) can cause organoleptic problems. bIndicates the presence of foreign matter. BS EN 15362:2014EN 15362:2014 (E) 9 4.4 Chemical parameters The product sh
37、all conform to the requirements specified in Table 2. Table 2 Chemical parameters Parameter Limit in mg/kg of Na2CO32 2 2 0,1 2 2 Arsenic (As) max. Cadmium (Cd) max. Chromium (Cr) max. Mercury (Hg) max. Nickel (Ni) max. Lead (Pb) max. NOTE Antimony, selenium, cyanides, pesticides and polycyclic arom
38、atic hydrocarbons are not relevant in sodium carbonate. For parametric values of sodium carbonate on trace metal content in drinking water, see 1. 5 Test methods The methods for sampling and analysis are those specified in EN 897. 6 Labelling Transportation Storage 6.1 Means of delivery Sodium carbo
39、nate can be delivered in bulk, bulk bags or in bags. To ensure that the purity of the products 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. 6.2 Labelling according to the EU legis
40、lation4)The following labelling requirements apply to sodium carbonate at the date of the publication of this document. 4) See 2. BS EN 15362:2014EN 15362:2014 (E) 10 GHS07 Figure 1 Hazard Pictogram Signal word : Warning. Hazard statement: H 319 Causes serious eye irritation. The legislation 2, and
41、its amendments for the purposes of 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 pers
42、on responsible for the marketing of the substance. 6.3 Transportation regulations and labelling Sodium carbonate is not listed under a UN Number5). Sodium carbonate is not classified as a dangerous product for road, rail, sea and air transportation. 6.4 Marking The marking shall include the followin
43、g: the name “sodium carbonate“ and trade name; the net mass; the name and address of supplier and/or manufacturer; the statement: “This product conforms to EN 15362.“ 6.5 Storage 6.5.1 General For more details about use, see Annex A. 6.5.2 Long term stability Sodium carbonate is stable in dry condit
44、ions. 6.5.3 Storage incompatibilities Keep bags tightly closed and dry. Keep away from acids. 5) United Nations Number. BS EN 15362:2014EN 15362:2014 (E) 11 Annex A (informative) General information on sodium carbonate A.1 Origin A.1.1 Raw materials Sodium chloride, limestone. A.1.2 Manufacturing pr
45、ocess Ammonia-soda-process (SOLVAY process). A.2 Use A.2.1 Function Sodium carbonate is mainly used for increase of pH value and buffering capacity. A.2.2 Form in which the product is used Sodium carbonate is mainly used as a solution, at concentration up to about a mass fraction of 10 %. A.2.3 Trea
46、tment dose The treatment dose depends on the application or the initial pH value and the buffer capacity of the water and the type of water treatment. A.2.4 Means of application The product is dosed directly into the pool or as a solution. For private swimming pools, manual addition of the product d
47、irectly into the pool or after a previous dissolution. A.2.5 Secondary effects Overdosing can cause an increase of turbity. A.2.6 Removal of excess product The excess product is removed by neutralisation. BS EN 15362:2014EN 15362:2014 (E) 12 Annex B (normative) General rules relating to safety B.1 R
48、ules for safe handling and use The supplier shall provide current safety instructions. B.2 Emergency procedures B.2.1 First aid WARNING In case of contact of aqueous solutions with eyes and with skin, eyes should be treated first. In case of inhalation and with a significant nasal irritation, move t
49、he patient to fresh air. Rinse mouth and nose with water or isotonic solution. Seek medical advice. In case of contact with eyes rinse with running water for at least 15 min, with the eyelids wide open. In case of persistent symptoms seek medical advice. In case of contact with skin take off the contaminated clothes and shoes, wash the skin with water. In case of persistent symptoms seek medical advice. In case of ingestion make patient drink water or milk and make them vomit. In any case seek medical advice. B.2.2 Spillage Collect the
