1、BRITISH STANDARD BS EN 1199:2005 Chemicals used for treatment of water intended for human consumption Disodium hydrogen orthophosphate The European Standard EN 1199:2005 has the status of a British Standard ICS 71.100.80 BS EN 1199:2005 This British Standard was published under the authority of the
2、Standards Policy and Strategy Committee on 30 March 2005 BSI 30 March 2005 ISBN 0 580 45790 7 National foreword This British Standard is the official English language version of EN 1199:2005. It supersedes BS EN 1199:1998 which is withdrawn. The UK participation in its preparation was entrusted to T
3、echnical Committee CII/59, Chemicals for drinking water treatment, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referre
4、d to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisio
5、ns of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or
6、 proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 17 cover and a back cover. The BSI copyright
7、notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1199 March 2005 ICS 71.100.80 Supersedes EN 1199:1997 English version Chemicals used for treatment of water i
8、ntended for human consumption - Disodium hydrogen orthophosphate Produits chimiques utiliss pour le traitement de leau destine la consommation humaine - Hydrognophosphate de sodium Produkte zur Aufbereitung von Wasser fr den menschlichen Gebrauch - Dinatriummonohydrogenphosphat This European Standar
9、d was approved by CEN on 3 February 2005. 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 su
10、ch national standards may be obtained on application to the Central Secretariat 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
11、 and notified to the Central Secretariat has the same status as the official 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
12、, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, 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 2005 CEN All rights of exploitation
13、in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1199:2005: EEN 1199:2005 (E) 2 Contents Page Foreword3 Introduction .4 1 Scope 5 2 Normative references 5 3 Description .5 4 Purity criteria7 5 Test methods9 6 Labelling - Transportation - Storage13 Annex A (inform
14、ative) General information on disodium hydrogen orthophosphate .15 Bibliography 17 EN 1199:2005 (E) 3 Foreword This document (EN 1199:2005) 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
15、of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2005, and conflicting national standards shall be withdrawn at the latest by September 2005. This document supersedes EN 1199:1997. Significant technical differences between this edition
16、and EN 1199:1997 are as follows: a) deletion of the reference to EU Directive 80/778/EEC of July 15 1980 in order to take into account of the last Directive in force (see 1); b) replacement of ISO 5666-1 by EN 1483 and of EN 26595 by EN ISO 11969. According to the CEN/CENELEC Internal Regulations, t
17、he national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Pol
18、and, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 1199:2005 (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 document: b) this document provides no information a
19、s to whether the product may be used without restriction in any of the Member States of the EU or EFTA; c) 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
20、. NOTE Conformity with this document does not confer or imply acceptance or approval of the product in any of the Member States f the EU or EFTA. The use of the product covered by this document is subject to regulation or control by National Authorities. EN 1199:2005 (E) 5 1 Scope This document is a
21、pplicable to disodium hydrogen orthophosphate used for treatment of water intended for human consumption. It describes the characteristics and specifies the requirements and the corresponding test methods for disodium hydrogen orthophosphate. It gives information on its use in water treatment. 2 Nor
22、mative 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 amendments) applies. EN 1483, Water quality Determin
23、ation of mercury. EN ISO 3696, Water for analytical laboratory use Specification and test methods (ISO 3696:1987). EN ISO 5961, Water quality Determination of cadmium by atomic absorption spectrometry (ISO 5961:1994). EN ISO 11885, Water quality Determination of 33 elements by inductively coupled pl
24、asma atomic emission spectroscopy (ISO 11885:1996). EN ISO 11969, Water quality - Determination of arsenic- Atomic absorption spectrometric method (hydride technique) (ISO 11969:1996). ISO 2997, Phosphoric acid for industrial use Determination of sulfate content Method by reduction and titrimetry. I
25、SO 3165, Sampling of chemical products for industrial use Safety in sampling. ISO 3360, Phosphoric acid and sodium phosphates for industrial use (including foodstuffs) Determination of fluorine content Alizarin complexone and lanthanum nitrate photometric method. ISO 6206, Chemical products for indu
26、strial use - Sampling Vocabulary. ISO 6703-1, Water quality Determination of cyanide Part 1: Determination of total cyanide. ISO 8213, Chemical products for industrial use Sampling techniques Solid chemical products in the form of particles varying from powders to coarse lumps. ISO 8288, Water quali
27、ty 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 spectrometric method (h
28、ydride technique). 3 Description 3.1 Identification 3.1.1 Chemical name Disodium hydrogen orthophosphate. EN 1199:2005 (E) 6 3.1.2 Synonym or common name Sodium phosphate, dibasic. 3.1.3 Relative molecular mass 142,0. 3.1.4 Empirical formula Na 2 HPO 4.3.1.5 Chemical formula Na 2 HPO 4.3.1.6 CAS Reg
29、istry Number 1)7558-79-4. 3.1.7 EINECS reference 2)231-448-7. 3.2 Commercial forms Disodium hydrogen orthophosphate is available in a number of different forms (see 3.3.1). Different commercial forms, solids or dissolved in water are possible. All concentrations mentioned refer to the active matter
30、and shall be calculated accordingly. NOTE Disodium hydrogen orthophosphate can be a component of mixtures sold for water treatment purposes. 3.3 Physical properties 3.3.1 Appearance Solid : The product is a white powder or granules. Liquid : The product is a clear solution. 3.3.2 Density Solid : The
31、 bulk density of the product varies from 550 g/dm 3to 1 000 g/dm 3 . Liquid : The density of solution is equal to 1,045 g/ml for a product concentration of 50 g/l at 20 C. 3.3.3 Solubility in water The solubility in water is approximately 80 g/l at 25 C. 1) Chemical Abstracts Service Registry Number
32、. 2) European Inventory of Existing Commercial Chemical Substances. EN 1199:2005 (E) 7 3.3.4 Vapour pressure Not applicable. 3.3.5 Boiling point at 100kPa 3)Not applicable. 3.3.6 Melting point For the solid product, 250 C. 3.3.7 Specific heat Not known. 3.3.8 Viscosity (dynamic) For the solid produc
33、t it is not applicable. For the liquid the viscosity is equal to 5 mPa.s for a product concentration of 50 g/l. 3.3.9 Critical temperature Not applicable. 3.3.10 Critical pressure Not applicable. 3.3.11 Physical hardness Not applicable. 3.4 Chemical properties The solutions of disodium hydrogen orth
34、ophosphate have alkaline reactions. The pH value of a solution of a mass fraction of 1 % is approximately 9 to 9,2. 4 Purity criteria 4.1 General This document specifies the minimum purity requirements for disodium hydrogen orthophosphate used for treatment of water intended for human consumption. L
35、imits 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. 3) 100 kPa = 1 bar. EN 1199:2005 (E) 8 NOTE Users of
36、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, contents of other impurities and additives used in the product not stated in the p
37、roduct standard, and other relevant factors. 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 significant quantities o
38、f impurities, by-products or additives being present, this shall be notified to the user. 4.2 Composition of commercial product The product shall conform to the following requirements on a dry mass basis: phosphate content expressed as P 2 O 5 : mass fraction of (50 1,0) % ; sodium content expressed
39、 as Na 2 O: mass fraction of (43 0,5) % . 4.3 Impurities and main by-products The product shall conform to the requirements specified in table 1. Table 1 Impurities Impurity Limit mg/kg of dry product Sulfate (SO 4 2 - ) max. 500 Fluoride (F - ) max. 10 4.4 Chemical parameters Content of various che
40、mical parameters depends on the origin of the raw materials, most of these elements are present only as traces. The product shall conform to the requirements specified in Table 2. EN 1199:2005 (E) 9 Table 2 Chemical parameters Parameter Limit mg/kg of dry product Antimony (Sb) max. 3 Arsenic (As) ma
41、x. 3 Cadmium (Cd) max. 3 Chromium (Cr) max. 10 Cyanide (CN) max. 5 Lead (Pb) max. 10 Mercury (Hg) max. 1 Nickel (Ni) max. 10 Selenium (Se) max. 3 NOTE Pesticides and polycyclic aromatic hydrocarbons are not relevant in disodium hydrogen orthophosphate. For parametric values of disodium hydrogen orth
42、ophosphate on trace metal content in drinking water, see 1. 5 Test methods 5.1 Sampling 5.1.1 General Observe the general recommendations of ISO 3165 and take account of ISO 6206. 5.1.2 Solid Prepare the laboratory sample(s) required by the relevant procedure described in ISO 8213. 5.1.3 Liquid 5.1.
43、3.1 Sampling from drums and bottles 5.1.3.1.1 General 5.1.3.1.1.1 Mix the contents of each 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. 5.1.3.1.1.2 If the design of each contain
44、er is such (for example, a narrow-necked 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 5.1.3.1.1.3. 5.1.3.1.1.3 Examine the surface of the liquid. If there are signs of surface
45、contamination, take samples from the surface as described in 5.1.3.1.2. Otherwise, take samples as described in 5.1.3.1.3. EN 1199:2005 (E) 10 5.1.3.1.2 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
46、 layer runs into it. Withdraw the ladle before it fills completely 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 analys
47、is is obtained. 5.1.3.1.3 Bottom sampling Take a sample using an open 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. O
48、pen the tube and move it rapidly so that the bottom of the tube traverses the bottom of the container before the tube is filled. Close the tube, withdraw it from the container and allow any liquid adhering at the outside of the tube to drain off. When using a bottom-valve sampling tube, close the va
49、lve before lowering the tube into the container and then proceed in a similar manner to that when using an open sampling tube. 5.1.3.2 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 5.1.3.1.2; b) from the bottom of the tank or tanker, using a sampling tube as described in 5.1.3.1.3 or using a specially designed bottom-sampling apparatus; c) from on
