1、BS EN 1408:2008ICS 13.060.20; 71.100.80NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDChemicals used fortreatment of waterintended for humanconsumption Poly(diallyldimethylammoniumchloride)This British Standard was published under theauthority of the StandardsP
2、olicy and StrategyCommittee on 32008 BSI 2008ISBN 978 0 580 57152 7Amendments/corrigenda issued since publicationDate CommentsBS EN 1408:2008National forewordThis British Standard is the UK implementation of EN 1408:2008. Itsupersedes BS EN 1408:1998 which is withdrawn.The UK participation in its pr
3、eparation was entrusted to TechnicalCommittee 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
4、for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.0 SeptemberBS EN 1408:2008EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 1408January 2008ICS 71.100.80 Supersedes EN 1408:1998 English VersionChemicals used for treatment of water intended
5、for humanconsumption - Poly (diallyldimethylammonium chloride)Produits chimiques utiliss pour le traitement de leaudestine la consommation humaine - Poly (chlorure dedimthyldiallylammonium)Produkte zur Aufbereitung von Wasser fr denmenschlichen Gebrauch - Poly (diallyldimethylammoniumchlorid)This Eu
6、ropean Standard was approved by CEN on 10 November 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
7、concerning such nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its
8、own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuan
9、ia, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN Al
10、l rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1408:2007: EBS EN 1408:2008EN 1408:2008 (E) 2 Contents Page Foreword4 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 Syno
11、nyms or common names6 3.1.3 Relative molecular mass.6 3.1.4 Empirical formula.6 3.1.5 Chemical formula.7 3.1.6CAS Registry Number ).7 3.1.7 EINECS reference )7 3.2 Commercial form .7 3.3 Physical properties7 3.3.1 Appearance 7 3.3.2 Density 7 3.3.3 Solubility.7 3.3.4 Vapour pressure 7 3.3.5 Boiling
12、point at 100 kPa )8 3.3.6 Freezing point 8 3.3.7 Specific heat.9 3.3.8 Viscosity, dynamic.9 3.3.9 Critical temperature.9 3.3.10 Critical pressure.9 3.3.11 Physical hardness .9 3.4 Chemical properties 9 4 Purity criteria9 4.1 General9 4.2 Composition of commercial product.10 4.3 Impurities and main b
13、y-products.10 4.4 Chemical parameters 10 5 Test methods10 5.1 Sampling.10 5.1.1 General10 5.1.2 Sampling from drums and bottles .11 5.1.3 Sampling from tanks and tankers11 5.2 Analyses .11 5.2.1 General11 5.2.2 Main product 12 5.2.3 Impurities14 6 Labelling - transportation - storage .18 6.1 Means o
14、f delivery.18 6.2 Risk and safety labelling in accordance with the EU Directives 19 6.3 Transportation regulations and labelling19 6.4 Marking .19 6.5 Storage19 6.5.1 Long term stability.19 BS EN 1408:2008EN 1408:2008 (E) 3 6.5.2 Storage incompatibilities 19 Annex A (informative) General information
15、 on polyDADMAC. 20 A.1 Origin 20 A.1.1 Raw materials 20 A.1.2 Manufacturing process. 20 A.2 Use 20 A.2.1 Function 20 A.2.2 Form in which it is used 20 A.2.3 Treatment dose 20 A.2.4 Means of application. 20 A.2.5 Secondary effects 20 A.2.6 Removal of excess product 20 A.3 Rules for safe handling and
16、use 21 A.4 Emergency procedures. 21 A.4.1 First aid. 21 A.4.2 Spillage. 21 A.4.3 Fire 21 Bibliography 22 BS EN 1408:2008EN 1408:2008 (E) 4 Foreword This document (EN 1408:2008) has been prepared by Technical Committee CEN/TC 164 “Water supply”, the secretariat of which is held by AFNOR. This Europea
17、n Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by July 2008, and conflicting national standards shall be withdrawn at the latest by July 2008. This document supersedes EN 1408:1998. Significant technical differ
18、ences between this edition and EN 1408:1998 are as follows: updating of the reference to the drinking water directive from 80/778/EEC to 98/83/EC. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European S
19、tandard: 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 United Kingdom.
20、BS EN 1408:2008EN 1408:2008 (E) 5 Introduction In respect of potential adverse effects on the quality of water intended for human consumption, 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 rest
21、riction 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 the use and/or the characteristics of this product remain in force. NOTE Conformity with this European Standard doe
22、s 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 European Standard is subject to regulation or control by national authorities. BS EN 1408:2008EN 1408:2008 (E) 6 1 Scope This European Standard is applica
23、ble to poly (diallyldimethylammonium chloride) used for treatment of water intended for human consumption. It describes the characteristics of poly (diallyldimethylammonium chloride) and specifies the requirements and the corresponding test methods for poly (diallyldimethylammonium chloride). It giv
24、es information on its use in water treatment. 2 Normative references The following referenced 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 a
25、mendments) applies. EN ISO 3696, Water for analytical laboratory use Specification and test methods (ISO 3696:1987) ISO 3165, Sampling of chemical products for industrial use Safety in sampling ISO 6206, Chemical products for industrial use Sampling Vocabulary 3 Description 3.1 Identification 3.1.1
26、Chemical name 2-Propen-1-aminium,N,N-dimethyl-N-2-propenyl, chloride, homopolymer. 3.1.2 Synonyms or common names Poly (diallyldimethylammonium chloride). Poly (dimethyldiallylammonium chloride). PolyDADMAC. NOTE The more general terms: “quarternary ammonium polyelectrolyte“, “cationic polymer“, “ca
27、tionic polyelectrolyte“, “polymer coagulant“ and “cationic flocculant“ are used, but can also cover other chemicals referred to in other European Standards. 3.1.3 Relative molecular mass Typically in the range of 20 000 to 1 million. 3.1.4 Empirical formula (C8H16N Cl)n- BS EN 1408:2008EN 1408:2008
28、(E) 7 3.1.5 Chemical formula 3.1.6 CAS Registry Number 1) 26062-79-3 3.1.7 EINECS reference 2)The conformity of polymers to EINECS is assessed on the basis of the monomers of which they are composed. Thus, EINECS reference numbers do not exist for polymers. DADMAC monomer is listed in EINECS (EINECS
29、 reference 230-993-8; CAS Registry Number 7398-69-8). 3.2 Commercial form PolyDADMAC as specified in this standard is an aqueous solution, the concentration (active content) of which is approximately 10 percent 40 percent mass fraction (see 5.2.2.2). 3.3 Physical properties 3.3.1 Appearance The prod
30、uct is a clear, colourless to amber-coloured liquid. 3.3.2 Density The density of the solution depends on the concentration. A typical value is 1,09 g/ml for 40 % mass fraction polyDADMAC at 20 C. 3.3.3 Solubility The product is miscible with water at all concentrations. 3.3.4 Vapour pressure A typi
31、cal value is 3,2 kPa for 40 % mass fraction polyDADMAC at 20 C. 1)Chemical Abstracts Service Registry Number. 2)European Inventory of Existing Commercial Chemical Substances. BS EN 1408:2008EN 1408:2008 (E) 8 3.3.5 Boiling point at 100 kPa 3)Approximately 100 C. 3.3.6 Freezing point Typical freezing
32、 points relative to polyDADMAC content are given in Table 1. Table 1 Freezing points PolyDADMAC Freezing point % mass fraction C 20 - 1 30 - 6 40 - 15 3)100 kPa = 1 bar. BS EN 1408:2008EN 1408:2008 (E) 9 3.3.7 Specific heat Typical specific heats relative to polyDADMAC content are given in Table 2.
33、Table 2 Specific heats PolyDADMAC Specific heat % mass fraction kJ/kgK 20 3,78 30 3,57 40 3,36 3.3.8 Viscosity, dynamic The viscosity is dependent on molecular mass and active content. Typically, it is in the range of 10 mPas to 10 000 mPas. 3.3.9 Critical temperature Not applicable. 3.3.10 Critical
34、 pressure Not applicable. 3.3.11 Physical hardness Not applicable. 3.4 Chemical properties PolyDADMAC is a non-hazardous material and not intrinsically reactive. However, in common with many other organic compounds, a strong exothermic reaction will occur if it is brought into contact with strong ac
35、ids or oxidizing agents. NOTE In dilute solution there can be a reaction with, or destruction by, some of the disinfection and oxidizing agents used in water treatment. 4 Purity criteria 4.1 General This European Standard specifies the minimum purity requirements for polyDADMAC used for the treatmen
36、t 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 be present and, if so, this shall be notified to the user and when necessary to relevant authorities. BS EN 140
37、8:2008EN 1408:2008 (E) 10 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 account raw water quality, required dosage and contents of other impurities and additi
38、ves used in the product not stated in the 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 lead to significa
39、nt quantities of impurities, by-products or additives being present, this shall be notified to the user. 4.2 Composition of commercial product The following requirements shall apply to polyDADMAC: there shall be no visible insoluble gel or extraneous matter; pH shall be in the range 4 to 7. 4.3 Impu
40、rities and main by-products DADMAC monomer: the product shall contain no more than 5 000 mg/kg active product. Based on the raw materials and manufacturing process (see A.1), there are no significant concentrations of additional reactants or by-products which are relevant to the application of these
41、 products in drinking water treatment. 4.4 Chemical parameters Chemical parameters and indicator parameters as listed in EU Directive 98/83/EC (see 1) are not relevant to polyDADMAC because the raw materials used in the manufacturing process are free of them and they are not by-products of the manuf
42、acturing process. 5 Test methods 5.1 Sampling 5.1.1 General For sampling the recommendations given in ISO 3165 and ISO 6206 shall be followed. A representative sample of the liquid product, of sufficient mass, shall be obtained immediately after manufacture or from a newly opened container(s). The s
43、ample shall be clearly labelled with product name/code, batch number, type of container(s) sampled and date sampled. Reference samples shall be retained for the storage life of the product as claimed by the manufacturer/supplier. BS EN 1408:2008EN 1408:2008 (E) 11 5.1.2 Sampling from drums and bottl
44、es 5.1.2.1 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
45、bottle) 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
46、as described 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 just before it fills completely
47、 and allow 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. 5.1.2.3 Bottom sampling Take a sample using an ope
48、n sampling tube, or a bottom-valve sampling tube, suited to the size of container and the viscosity of the liquid. When using an open sampling tube, close it at the top and then lower the bottom end to the bottom of the container. Open the tube and move it rapidly so that the bottom of the tube trav
49、erses the bottom of the container before the tube is filled. Close the tube, withdraw it from the container and allow any liquid adhering to the outside of the tube to drain off. When using a bottom-valve sampling tube, close the valve before lowering the tube into the container and then proceed in a similar manner to that when using an open sampling tube. 5.1.3 Sampling from tanks and tankers From each access point, take samples as follows: a) from the surface of the liquid, using a ladle as described in 5.1.2.2; b) from the bottom of t
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