EN 899-2009 en Chemicals used for treatment of water intended for human consumption - Sulphuric acid《饮用水处理用化学试剂 硫酸》.pdf

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1、BS EN 899:2009ICS 71.100.80NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDChemicals used fortreatment of waterintended for humanconsumption Sulfuric acidThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 31 Jul

2、y 2009 BSI 2009ISBN 978 0 580 63247 1Amendments/corrigenda issued since publicationDate CommentsBS EN 899:2009National forewordThis British Standard is the UK implementation of EN 899:2009. Itsupersedes BS EN 899:2003 which is withdrawn.The UK participation in its preparation was entrusted to Techni

3、calCommittee CII/59, Chemicals for drinking water treatment.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compl

4、iance with a British Standard cannot confer immunityfrom legal obligations.BS EN 899:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 899March 2009ICS 71.100.80 Supersedes EN 899:2003 English VersionChemicals used for treatment of water intended for humanconsumption - Sulphuric acidProduits chi

5、miques utiliss pour le traitement de leaudestine la consommation humaine - Acide sulfuriqueProdukte Zur Aufbereitung von Wasser fr denmenschlichen Gebrauch - SchwefelsureThis European Standard was approved by CEN on 8 February 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regula

6、tions which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This Euro

7、pean Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the natio

8、nal standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and Uni

9、ted Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 899:2009: EBS EN

10、899:2009EN 899:2009 (E) 2 Contents page Foreword 3Introduction . 41 Scope 52 Normative references 53 Description . 53.1 Identification . 53.2 Commercial forms . 63.3 Physical properties 63.4 Chemical properties 84 Purity criteria 84.1 General 84.2 Composition of commercial product . 84.3 Chemical pa

11、rameters and indicator parameters 95 Test methods 95.1 Sampling . 95.2 Analyses . 106 Labelling - Transportation - Storage 136.1 Means of delivery . 136.2 Risk and safety labelling according to the EU Directives 136.3 Transportation regulations and labelling 146.4 Marking . 156.5 Storage 15Annex A (

12、informative) General information on sulfuric acid 16A.1 Origin 16A.2 Use 16Annex B (normative) General rules relating to safety . 17B.1 Rules for safe handling and use 17B.2 Emergency procedures . 17Bibliography 18BS EN 899:2009EN 899:2009 (E) 3 Foreword This document (EN 899:2009) has been prepared

13、 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, at the latest by September 2009, and conflicting national standards sha

14、ll be withdrawn at the latest by September 2009. 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 all such patent rights. This document supersedes EN 899:2003.

15、 Differences between this edition and EN 899:2003 are editorial to harmonize the text with other standards in this series. Annex A is informative; Annex B is normative. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to imp

16、lement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerlan

17、d and the United Kingdom. BS EN 899:2009EN 899:2009 (E) 4 Introduction In respect of potential adverse effects on the quality of water intended for human consumption, caused by the product covered by this standard: a) this standard provides no information as to whether the product may be used withou

18、t restriction in any of 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 the standard does not co

19、nfer 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 European Standard is subject to regulation or control by National Authorities. BS EN 899:2009EN 899:2009 (E) 5 1 Scope This European Standard is applicable to sul

20、furic acid used for treatment of water intended for human consumption. It describes the characteristics of sulfuric acid and specifies the requirements and the corresponding test methods for sulfuric acid. It gives information on its use in water treatment. 2 Normative references The following refer

21、enced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1483, Water quality Determination of mercury Method using atomic

22、absorption spectrometry EN 26595, Water quality - Determination of total arsenic Silver diethyldithiocarbamate spectrophotometric method (ISO 6595:1982) EN ISO 3696, Water for analytical laboratory use Specification and test methods (ISO 3696:1987) EN ISO 11885, Water quality determination of 33 ele

23、ments by inductively coupled plasma atomic emission spectroscopy (ISO 11885:1996) ISO 910, Sulphuric acid and oleum for industrial use Determination of total acidity, and calculation of free sulphur trioxide content of oleum Titrimetric method ISO 3165, Sampling of chemical products for industrial u

24、se Safety in sampling ISO 3423, Sulphuric acid and oleums for industrial use Determination of sulphur dioxide content - Iodometric method ISO 6206, Chemical products for industrial use Sampling Vocabulary ISO 6332, Water quality Determination of iron Spectrometric method using 1,10-phenanthroline IS

25、O 8288, Water quality Determination of cobalt, nickel, copper, zinc, cadmium and lead Flame atomic absorption spectrometric methods ISO 9174, Water quality Determination of chromium Atomic absorption spectrometric methods ISO 9965, Water quality Determination of selenium Atomic absorption spectromet

26、ric method (hydride technique) 3 Description 3.1 Identification 3.1.1 Chemical name Sulfuric acid. 3.1.2 Synonym or common name Oil of vitriol. BS EN 899:2009EN 899:2009 (E) 6 3.1.3 Relative molecular mass 98. 3.1.4 Empirical formula H2SO4. 3.1.5 Chemical formula H2SO4. 3.1.6 CAS Registry Number 1)7

27、664-93-9. 3.1.7 EINECS reference 2)231-639-5. 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

28、 1,84 g/ml for sulfuric acid concentration 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 miscibl

29、e with water. 1) Chemical Abstracts Service Registry Number. 2) European Inventory of Existing Commercial Chemical Substances. BS EN 899:2009EN 899:2009 (E) 7 3.3.4 Vapour pressure Below 0,00001 kPa for sulfuric acid concentration of mass fraction of 96 % at 20 C. Below 0,1 kPa for sulfuric acid con

30、centration 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 acid concentration of mass fraction of 96 %. Approximately + 200 C for sulfuric acid concentration of mass fraction of

31、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 acid concentration of mass fraction of 96 %. - 11 C for sulfuric acid concentration of mass fraction of 78 %. - 22 C for s

32、ulfuric 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. 3.3.8 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 o

33、f mass fraction of 78 % 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) 100 kPa = 1 bar. BS EN 899:2009EN 899:2009 (E) 8 3.4 Chemical properties Concentrated sulfuric acid reacts violently: with bases or with wa

34、ter (exothermic reaction); with reducing agents due to oxidizing properties; with combustible materials due to oxidizing and dehydrating properties. The concentrated acid is a strong oxidizing agent and can cause ignition in contact with organic materials. Sulfuric acid (of sulfuric acid content les

35、s 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. Therefore ALWAYS ADD THE ACID TO THE WATER (NEVER THE REVERSE), slowly and agitating continuously. 4 Purity criteria 4.1 Ge

36、neral This European Standard specifies the minimum purity requirements for sulfuric acid used for the treatment of water intended for human consumption. Limits are given for impurities commonly present in the product. Depending on the raw material and the manufacturing process other impurities may b

37、e present and, if so, this shall be notified to the user and, when necessary, to the relevant authorities. NOTE Users of this product should check the national regulations in order to clarify whether it is of appropriate purity for treatment of water intended for human consumption, taking into accou

38、nt 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 likely to be present in significant quantities from the current production process and raw material

39、s. 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. 4.2 Composition of commercial product The usual commercial concentrations of sulfuric acid available have a mass fraction of 96 % or

40、 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 acid shall be in the range of 92 % to 98 %. The concentration of sulfuric acid shall be within a mass fraction of 1 % of the manufactu

41、rers declared value. BS EN 899:2009EN 899:2009 (E) 9 4.3 Chemical parameters and indicator parameters The product shall conform to the requirements specified in Table 1. Table 1 Chemical parameters and indicator parameters Parameter Limit of H2SO4 mg/kg Sulfur dioxide (SO2) max. 100 Iron (Fe) max. 1

42、00 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 values of trace metals in drinking water, see 1. 5 Test methods 5.1 Sampling 5.1.1 General Observe the r

43、ecommendations of ISO 3165 and take account of ISO 6206. NOTE The sampling is carried out at the premises of the manufacturer of the concentrated sulfuric acid unless the customer has adequate facilities to carry out this operation safely at his own premises. 5.1.2 Sampling from drums and bottles 5.

44、1.2.1 General 5.1.2.1.1 Mix the contents of the container to be sampled by shaking the container, by rolling it or by rocking it from side to side, taking care not to damage the container or spill any of the liquid. 5.1.2.1.2 If the design of the container is such (for example, a narrow-necked bottl

45、e) that it is impracticable to use a sampling implement, take a sample by pouring after the contents have been thoroughly mixed. Otherwise, proceed as described in 5.1.2.1.3. 5.1.2.1.3 Examine the surface of the liquid. If there are signs of surface contamination, take samples from the surface as de

46、scribed in 5.1.2.2. Otherwise, take samples as described in 5.1.2.3. 5.1.2.2 Surface sampling Take a sample using a suitable ladle. Lower the ladle into the liquid until the rim is just below the surface, so that the surface layer runs into it. Withdraw the ladle before it fills completely and allow

47、 any liquid adhering to the ladle to drain off. If necessary, repeat this operation so that, when the other selected containers have been sampled in a similar manner, the total volume of sample required for subsequent analysis is obtained. BS EN 899:2009EN 899:2009 (E) 10 5.1.2.3 Procedure using a s

48、ampling tube Use a tube made of polytetrafluoroethylene (PTFE), approximately 1 500 mm long, with 14,5 mm inside diameter and 1,25 mm wall thickness tapering to an inside diameter of approximately 5 mm at one end. Fit a rubber tube approximately 200 mm long which can be closed by means of a pinch cl

49、ip, to the other end. When taking the samples, insert the sampling tube as far as possible into the acid to be tested with the clip released. Do this slowly so that the levels of liquid in the sampling tube and in the acid container are the same. Close the clip, withdraw the sampling tube from the acid, allow any liquid adhering to the outside of the tube to drain off, and by releasing the clip disch