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1、BS EN 15041:2006 ICS 13.060.20, 71.100.80 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BRITISH STANDARD Chemicals used for treatment of water intended for human consumption Antiscalants for membranes Polyphosphates Licensed Copy: London South Bank University, South Bank Uni
2、versity, 31/01/2009 02:29, Uncontrolled Copy, (c) BSI This British Standard was published under the authority of the Standards Policy and Strategy Committee on 3 ember 2008 BSI 2008 ISBN 978 0 580 55001 0 Amendments/corrigenda issued since publication DateComments BS EN 15041:2006 National foreword
3、This British Standard is the UK implementation of EN 15041:2006. The UK participation in its preparation was entrusted to Technical Committee CII/59, Chemicals for drinking water treatment. A list of organizations represented on this committee can be obtained on request to its secretary. This public
4、ation does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. 1 Dec Licensed Copy: London South Bank University, South Bank University, 31/01/2009 02:2
5、9, Uncontrolled Copy, (c) BSI BS EN 15041:2006 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15041 July 2006 ICS 71.100.80 English Version Chemicals used for treatment of water intended for human consumption - Antiscalants for membranes - Polyphosphates Produits chimiques utiliss pour le trai
6、tement de leau destine la consommation humaine - Produits antitartre pour membranes - Polyphosphates Produkte zur Aufbereitung von Wasser fr den menschlichen Gebrauch - Antiscalants fr Membranen - Polyphosphate This European Standard was approved by CEN on 5 June 2006. CEN members are bound to compl
7、y 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 standards may be obtained on application to the Central Secr
8、etariat 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 notified to the Central Secretariat has the same status as the offi
9、cial versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Sp
10、ain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2006 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national
11、 Members. Ref. No. EN 15041:2006: E Licensed Copy: London South Bank University, South Bank University, 31/01/2009 02:29, Uncontrolled Copy, (c) BSI BS EN 15041:2006 EN 15041:2006 (E) 2 Contents Page Foreword3 Introduction.4 1 Scope5 2 Normative references5 3 Description.5 4 Purity criteria5 5 Test
12、methods6 6 Labelling - Transportation - Storage6 Annex A (informative) General information on polyphosphates.8 Bibliography. 10 Licensed Copy: London South Bank University, South Bank University, 31/01/2009 02:29, Uncontrolled Copy, (c) BSI BS EN 15041:2006 EN 15041:2006 (E) 3 Foreword This document
13、 (EN 15041:2006) 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, at the latest by January 2007, and co
14、nflicting national standards shall be withdrawn at the latest by January 2007. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia,
15、 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. Licensed Copy: London South Bank University, South Bank University, 31/01/2009
16、 02:29, Uncontrolled Copy, (c) BSI BS EN 15041:2006 EN 15041:2006 (E) 4 Introduction In respect of potential adverse effects on the quality of water intended for human consumption, caused by the products covered by this European Standard: a) this European Standard provides no information as to wheth
17、er the products 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 the use and/or the characteristics of these products remain in force. NOTE
18、 Conformity with this European Standard does not confer or imply acceptance or approval of the products in any of the Member States of the EU or EFTA. The use of the products covered by this European Standard is subject to regulation or control by National Authorities. Licensed Copy: London South Ba
19、nk University, South Bank University, 31/01/2009 02:29, Uncontrolled Copy, (c) BSI BS EN 15041:2006 EN 15041:2006 (E) 5 1 Scope This European Standard is applicable to polyphosphates used as antiscalants for membranes for treatment of water intended for human consumption. It describes the characteri
20、stics and specifies the requirements and the corresponding analytical methods for polyphosphates. It gives information on their use as antiscalants for membranes in water treatment. 2 Normative references The following referenced documents are indispensable for the application of this document. For
21、dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1212, Chemicals used for treatment of water intended for human consumption Sodium polyphosphate 3 Description For the identification, the com
22、mercial form, the physical properties and the chemical properties see the relevant sub-clauses of EN 1212. 4 Purity criteria 4.1 General This European Standard specifies the minimum purity requirements for polyphosphates used as antiscalants for membranes for the treatment of water intended for huma
23、n consumption. Limits are given for impurities commonly present in the products. 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. NOTE Users of these products should
24、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, contents of other impurities and additives used in the products not stated in this product standard. L
25、imits 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 significant quantities of impurities, by-products or additives being p
26、resent, this shall be notified to the user. 4.2 Composition of commercial product The products shall conform to the following requirements on a dry mass basis: phosphate content expressed as P2O5: mass fraction of (64 to 69) %; sodium content expressed as Na2O: mass fraction of (34,5 to 29) %. Licen
27、sed Copy: London South Bank University, South Bank University, 31/01/2009 02:29, Uncontrolled Copy, (c) BSI BS EN 15041:2006 EN 15041:2006 (E) 6 4.3 Impurities and main by-products The products shall conform to the requirements specified in Table 1. Table 1 Impurities Limit Impurity mg/kg of dry pro
28、duct Sulfate (SO42-) max. 500 Fluoride (F-) max. 10 4.4 Chemical parameters Content of various chemical parameters depends on the origin of the raw materials, most of these elements are present only as traces. The content of antimony, arsenic, cadmium, chromium, cyanide, lead, mercury, nickel and se
29、lenium shall conform to the requirements specified in EN 1212. NOTE Pesticides and polycyclic aromatic hydrocarbons are not relevant in polyphosphates since the raw material used in the manufacturing process are free of them. 5 Test methods The sampling and the analytical methods are those described
30、 in EN 1212. 6 Labelling - Transportation - Storage 6.1 Means of delivery In order that the purity of the products 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. 6.2 Risk and safety
31、 labelling according to the EU Directives1) Polyphosphates are not subject to labelling regulations at the date of publication of this European Standard. NOTE Annex I of the Directive 67/548/EEC on Classification, packaging and labelling of dangerous substances and its amendments and adaptations in
32、the European Union contains a list of substances classified by the EU. Substances not in this Annex I should be classified on the basis of their intrinsic properties according to the criteria in the Directive by the person responsible for the marketing of the substance. 6.3 Transportation regulation
33、s and labelling Polyphosphates are not listed under a UN number2). Polyphosphates are not classified as a dangerous product for road, rail, sea and air transportation. 1) See 1 and 2. 2) United Nations Number. Licensed Copy: London South Bank University, South Bank University, 31/01/2009 02:29, Unco
34、ntrolled Copy, (c) BSI BS EN 15041:2006 EN 15041:2006 (E) 7 6.4 Marking The marking shall include the following information: the name “antiscaling polyphosphates“, trade name and grade; the net mass; the name and the address of the supplier and/or manufacturer; the statement “this product conforms t
35、o EN 15041“. 6.5 Storage 6.5.1 Material Use plastics, avoid contact with metals. 6.5.2 Long term stability Product is stable for at least one year if stored in closed containers. 6.5.3 Storage incompatibilities No special requirement. Licensed Copy: London South Bank University, South Bank Universit
36、y, 31/01/2009 02:29, Uncontrolled Copy, (c) BSI BS EN 15041:2006 EN 15041:2006 (E) 8 Annex A (informative) General information on polyphosphates A.1 Origin A.1.1 Raw materials Polyphosphates are manufactured from phosphoric acid and sodium hydroxide. A.1.2 Manufacturing process Sodium or potassium h
37、ydroxide is added to phosphoric acid in a molar ratio of 1:1.Then the resulting product is dewatered and melted at temperatures above 800 C. A.2 Use A.2.1 Function Polyphosphates are used as antiscalant especially for reverse osmosis (RO) and nanofiltration membranes. They will not pass the membrane
38、s and are rejected to the wastewater with the concentrate. NOTE Disposal of waste water should be done in accordance with all applicable local, national, and federal regulations. In its concentrated form polyphosphates are corrosive. Corrosion resistant dosing equipment should therefore be used. The
39、 prime application for polyphosphates is for the inhibition of calcium carbonate fouling. A.2.2 Form in which it is used Polyphosphates are mainly used as a solution and within the range of a mass fraction of 0,5 % to 40 %. A.2.3 Treatment dose A typical dosage rate is from 1 mg/l to 20 mg/l in the
40、make-up water. A.2.4 Means of application The products can be pumped directly from the containers as supplied or the products can be diluted with permeate water prior to dose into the RO feed water stream. Dosage point: feed water prior to the high pressure pumps Dosage frequency: continuous using a
41、 suitably sized dosing pump Product dosage: neat as supplied or diluted with permeate water Licensed Copy: London South Bank University, South Bank University, 31/01/2009 02:29, Uncontrolled Copy, (c) BSI BS EN 15041:2006 EN 15041:2006 (E) 9 A.2.5 Secondary effects The product has no secondary effec
42、ts. A.2.6 Removal of excess product Not applicable. A.3 General rules relating to safety A.3.1 Rules for safe handling and use The supplier will provide current safety instructions. A.3.2 Emergency procedures A.3.2.1 First aid In case of contact with eyes or skin, it is recommended to rinse immediat
43、ely with plenty of water. A.3.2.2 Spillage It is recommended to remove mechanically as much as possible of the solid product, then to rinse the area with plenty of water. A.3.2.3 Fire The products are not combustible. Licensed Copy: London South Bank University, South Bank University, 31/01/2009 02:
44、29, Uncontrolled Copy, (c) BSI BS EN 15041:2006 EN 15041:2006 (E) 10 Bibliography 1 98/83/EC, Council Directive of 3 November 1998 on the Quality of Water intended for Human Consumption. 2 67/548/EEC, Council Directive of 27th June 1967 on the approximation of the laws, regulations and administrativ
45、e provisions relating to the classification, packaging and labelling of dangerous substances and its amendments and adaptations. Licensed Copy: London South Bank University, South Bank University, 31/01/2009 02:29, Uncontrolled Copy, (c) BSI BS EN 15041:2006 This page has been intentionally left bla
46、nk Licensed Copy: London South Bank University, South Bank University, 31/01/2009 02:29, Uncontrolled Copy, (c) BSI BS EN 15041:2006 BSI Group Headquarters 389 Chiswick High Road, London, W4 4AL, UK Tel +44 (0)20 8996 9001 Fax +44 (0)20 8996 7001 standards BSI - British Standards Institution BSI is
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