1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 15078:2013Chemicals used for treatmentof swimming pool water Sulfuric acidBS EN 15078:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation o
2、f EN 15078:2013. Itsupersedes BS EN 15078:2006 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee CII/59, Chemicals for drinking water treatment.A list of organizations represented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 to its secretary.This publicati
3、on 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 80015 3ICS 13.060.25; 71.100.80Compliance with a British Standard cannot confer imm
4、unity 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 15078:2013EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15078 May 2013 ICS 71.100.80 Sup
5、ersedes EN 15078:2006English Version Chemicals used for treatment of swimming pool water - Sulfuric acid Produits chimiques utiliss pour le traitement de leau des piscines - Acide sulfurique Produkte zur Aufbereitung von Schwimm- und Badebeckenwasser - Schwefelsure This European Standard was approve
6、d 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 concerning such national sta
7、ndards 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 into its own language and
8、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, Germany, Greece, Hungary
9、, 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 FR NORMUNG Management
10、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 15078:2013: EBS EN 15078:2013EN 15078:2013 (E) 2 Contents Page Foreword . 3 Introduction 4 1 Scope 5 2 Normative reference . 5 3 Descrip
11、tion . 5 3.1 Identification . 5 3.2 Commercial forms 6 3.3 Physical properties 6 3.4 Chemical properties . 7 4 Purity criteria 7 4.1 General . 7 4.2 Composition of commercial product . 8 4.3 Chemical parameters and indicator parameters . 8 5 Test methods 8 6 Labelling Transportation Storage 8 6.1 Me
12、ans of delivery . 8 6.2 Labelling according to EU legislation 9 6.3 Transportation regulations and labelling 9 6.4 Marking . 10 6.5 Storage . 10 Annex A (informative) General information on sulfuric acid . 11 A.1 Origin 11 A.2 Use 11 Annex B (normative) General rules relating to safety . 12 B.1 Rule
13、s for safe handling and use 12 B.2 Emergency procedures 12 Bibliography 13 BS EN 15078:2013EN 15078:2013 (E) 3 Foreword This document (EN 15078:2013) 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 t
14、he 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 the elements of this document may b
15、e 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 15078:2006. Significant technical differences between this edition and EN 15078:2006 are as follows: Replacement of warning and safety precautio
16、ns notes by labelling according to Regulation (EC) No 1272/2008 2. 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
17、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 15078:2013EN 1
18、5078:2013 (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 used without restriction in any of the
19、 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 Conformity with this European Standard does not confer or imply
20、 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. BS EN 15078:2013EN 15078:2013 (E) 5 1 Scope This European Standard is applicable to sulfuric aci
21、d used directly or for the production of formulations for the treatment of water for swimming pools. It describes the characteristics and specifies the requirements and the corresponding test methods for sulfuric acid. It gives information on its use for treatment of water for swimming pools. It als
22、o 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 referen
23、ces, the latest edition of the referenced document (including any amendments) applies. EN 899, Chemicals used for treatment of water intended for human consumption Sulfuric acid 3 Description 3.1 Identification 3.1.1 Chemical name Sulfuric acid. 3.1.2 Synonym or common name Oil of vitriol. 3.1.3 Rel
24、ative molecular mass 98. 3.1.4 Empirical formula H2SO4. 3.1.5 Chemical formula H2SO4. 3.1.6 CAS Registry Number 1)7664-93-9. 3.1.7 EINECS reference 2)231-639-5. 1) Chemical Abstracts Service Registry Number. 2) European Inventory of Existing Commercial Chemical Substances.BS EN 15078:2013EN 15078:20
25、13 (E) 6 3.2 Commercial forms Sulfuric acid is available as aqueous solutions. NOTE For some water treatment applications, diluted acid can be used. 3.3 Physical properties 3.3.1 Appearance The product is clear or slightly turbid, colourless liquid. 3.3.2 Density 1,84 g/ml for sulfuric acid concentr
26、ation of mass fraction of 96 % at 20 C. 1,71 g/ml for sulfuric acid concentration of mass fraction of 78 % at 20 C. 1,18 g/ml for sulfuric acid concentration of mass fraction of 25 % at 20 C. 3.3.3 Solubility in water At all concentrations, the product is miscible with water. 3.3.4 Vapour pressure B
27、elow 0,000 01 kPa for sulfuric acid concentration of mass fraction of 96 % at 20 C. Below 0,1 kPa for sulfuric acid concentration of mass fraction of 78 % at 20 C. Below 1,9 kPa for sulfuric acid concentration of mass fraction of 25 % at 20 C. 3.3.5 Boiling point at 100 kPa 3)+ 310 C for sulfphuric
28、acid concentration of mass fraction of 96 %. Approximately + 200 C for sulfuric acid concentration of mass fraction of 78 %. + 106,5 C for sulfuric acid concentration of mass fraction of 25 %. 3.3.6 Melting point + 5 C for sulfuric acid concentration of mass fraction of 98 %. - 10 C for sulfuric aci
29、d concentration of mass fraction of 96 %. - 11 C for sulfuric acid concentration of mass fraction of 78 %. - 22 C for sulfuric acid concentration of mass fraction of 25 %. 3.3.7 Specific heat 1,465 kJ/(kg.K) for sulfuric acid concentration of mass fraction of 96 % at 20 C. 3) 100 kPa = 1 bar. BS EN
30、15078:2013EN 15078:2013 (E) 7 3.3.8 Viscosity (dynamic) 22 mPa.s for sulfuric acid concentration of mass fraction of 96 % at 20 C. 16,7 mPa.s for sulfuric acid concentration of mass fraction of 78 % at 20 C. 3.3.9 Critical temperature Not applicable. 3.3.10 Critical pressure Not applicable. 3.3.11 P
31、hysical hardness Not applicable. 3.4 Chemical properties Concentrated sulfuric acid reacts violently: with bases or with water (exothermic reaction); with reducing agents due to oxidising properties; with combustible materials due to oxidising and dehydrating properties. The concentrated acid is a s
32、trong oxidising agent and can cause ignition in contact with organic materials. Sulfuric acid (of sulfuric acid content less than a mass fraction of 70 %) attacks most common metals, e.g. iron, zinc, liberating the flammable gas hydrogen. WARNING Mixing with water produces a marked temperature rise.
33、 Therefore ALWAYS ADD THE ACID TO THE WATER (NEVER THE REVERSE), slowly and agitating continuously. 4 Purity criteria 4.1 General This European Standard specifies the minimum purity requirements for sulfuric acid used for the treatment of water for swimming pools. Limits are given for impurities com
34、monly 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 the relevant authorities. Users of this product should check the national regulations in order to clarify
35、whether it is of appropriate purity for treatment of water for swimming pools, taking into account raw water quality, contents of other impurities and additives used in the products not stated in the product standard. Limits have been given for impurities and chemicals parameters where these are lik
36、ely 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, this shall be notified to the user. BS EN 15078:2013EN 15078:2013 (E) 8
37、4.2 Composition of commercial product The usual commercial concentrations of sulfuric acid available have a mass fraction of 96 % or 98 %. Other concentrations of sulfuric acid between a mass fraction of 25 % and 80 % are also available. If sold as concentrated acid, the mass fraction of sulfuric ac
38、id shall be in the range of 92 % to 98 %. The concentration of sulfuric acid shall be within a mass fraction of 1 % of the manufacturers declared value. 4.3 Chemical parameters and indicator parameters The product shall conform to the requirements specified in Table 1. Table 1 Chemical parameters an
39、d indicator parameters Parameter Limit of H2SO4mg/kg Sulfur dioxide (SO2) max. 100 Iron (Fe) max. 100 Arsenic (As) max. 0,4 Cadmium (Cd) max. 0,1 Chromium (Cr) max. 4 Mercury (Hg) max. 0,1 Nickel (Ni) max. 4 Lead (Pb) max. 4 Antimony (Sb) max. 1 Selenium (Se) max. 1 NOTE For chemical parameter value
40、s of trace metals in drinking water, see 1. 5 Test methods The sampling and the analytical methods are those described in EN 899. 6 Labelling Transportation Storage 6.1 Means of delivery Sulfuric acid shall be delivered in containers made of, or lined with, one of the materials given in EN 899, depe
41、nding on the temperature and concentration of the acid. 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 have been specially cleaned and prepared before use. BS EN 15078:2013EN 15078:2013 (E) 9 6.
42、2 Labelling according to EU legislation 4)The following labelling requirements shall apply to sulfuric acid at the date of publication of this European Standard. Figure 1 GHS 05 Signal word: Danger Classification and hazard statement: H 314 Causes severe skin burns and eye damage The regulation 2, a
43、nd 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 p
44、erson responsible for the marketing of the substance. 6.3 Transportation regulations and labelling Sulfuric acid of concentration greater than a mass fraction of 51 % is listed as UN number 5)1830. RID 6) /ADR 7): class 8, classification code C1, packing group II. IMDG 8): class 8, packing group II.
45、 IATA 9): class 8, packing group II. 4) See 2. 5) United Nations Number. 6) Regulations concerning International carriage of Dangerous goods by rail. 7) European Agreement concerning the international carriage of Dangerous goods by Road. 8) International Maritime transport of Dangerous Goods. 9) Int
46、ernational Air Transport Association. BS EN 15078:2013EN 15078:2013 (E) 10 6.4 Marking The marking shall include the following information: name “sulfuric acid“, trade name and mass fraction; net mass; name and address of supplier and/or manufacturer; statement “this product conforms to EN 15078“. 6
47、.5 Storage 6.5.1 Long term stability The product is stable if the container is made of suitable material (see EN 899) and tightly closed. NOTE There is a risk of concentrated sulfuric acid freezing at temperatures below 10 C. 6.5.2 Storage incompatibilities The product shall not be allowed to come i
48、nto contact with moisture, alkalis, metal powders, sulfides, sulfites, nitrates, chlorates, chlorites, hypochlorites or organic materials. BS EN 15078:2013EN 15078:2013 (E) 11 Annex A (informative) General information on sulfuric acid A.1 Origin A.1.1 Raw materials Sulfuric acid is manufactured from
49、 sulfur dioxide gas, which is produced, for example, by burning elemental sulfur or roasting of metal sulfide ores. A.1.2 Manufacturing process Sulfuric acid is produced by the catalytic oxidation of sulfur dioxide (SO2) to sulfur trioxide (SO3), absorption of sulfur trioxide in sulfuric acid and dilution with water to the required grade. A.2 Use A.2.1 Function In the treatment of water for swimming pools, sulfuric acid is used to adjust the pH value. A.2.2 Form in which it is used Sulfuric acid used for trea
