BS-EN-12260-2003 BS-6068-2.83-2003.pdf
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1、BRITISH STANDARD BS EN 12260:2003 BS 6068-2.83:2003 Water quality Determination of nitrogen Determination of bound nitrogen (TNb), following oxidation to nitrogen oxides The European Standard EN 12260:2003 has the status of a British Standard ICS 13.060.50 ? Licensed Copy: sheffieldun sheffieldun, n
2、a, Sat Oct 28 05:45:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 12260:2003 This British Standard, was published under the authority of the Standards Policy and Strategy Committee on 25 September 2003 BSI 25 September 2003 ISBN 0 580 42692 0 National foreword This British Standard is the offi
3、cial English language version of EN 12260:2003. It supersedes DD ENV 12260:1996 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee EH/3, Water quality, to Subcommittee EH/3/2, Physical, chemical and biochemical methods, which has the responsibility to: A
4、 list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International
5、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 provisions of a contract. Users are responsible for its correct application. Compliance with a British Sta
6、ndard 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 proposals for change, and keep the UK interests informed; monitor related international and Europ
7、ean 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 13 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since p
8、ublication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:45:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12260 September 2003 ICS 13.060.50Supersedes ENV 12260:1996 English version Water quality - Determination o
9、f nitrogen - Determination of bound nitrogen (TNb), following oxidation to nitrogen oxides Qualit de leau - Dosage de lazote - Dosage de lazote li (TNb) aprs oxydation en oxydes dazote Wasserbeschaffenheit - Bestimmung von Stickstoff - Bestimmung von gebundenem Stickstoff (TNb) nach Oxidation zu Sti
10、ckstoffoxiden This European Standard was approved by CEN on 1 August 2003. 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 bibliog
11、raphical references concerning such national standards may be obtained on application to the 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 C
12、EN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Nethe
13、rlands, Norway, Portugal, Slovakia, 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 2003 CENAll rights of exploitation in any form and by any mea
14、ns reserved worldwide for CEN national Members. Ref. No. EN 12260:2003 E Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:45:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12260:2003 (E) 2 Contentspage Foreword. 3 Introduction 4 1Scope . 5 2Normative references . 5 3Principle. 5 4Interfer
15、ences 5 5Reagents 6 6Apparatus 6 7Sampling and sample preparation 7 8Procedure 7 9Establishment of the calibration curve. 7 10System check 8 11Calculation. 8 12Expression of results . 8 13Test report . 9 14Precision data 9 Annex A (informative) Determination of bound nitrogen using other techniques
16、10 Annex B (informative) Recovery rates of single compounds using oxidation and chemiluminescence detection (see table B.1). 11 Annex C (informative) Precision data. 12 Bibliography. 13 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:45:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1226
17、0:2003 (E) 3 Foreword This document (EN 12260:2003) has been prepared by Technical Committee CEN/TC 230 “Water analysis”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at
18、 the latest by March 2004, and conflicting national standards shall be withdrawn at the latest by March 2004. This document supersedes ENV 12260: 1996 Annexes A B, and C are informative annexes. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
19、countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffi
20、eldun sheffieldun, na, Sat Oct 28 05:45:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12260:2003 (E) 4 Introduction WARNING Persons using this standard should be familiar with normal laboratory practice. This standard does not purport to address all of the safety problems, if any, associated with
21、 its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions. It is absolutely essential that tests carried out according to this European Standard are carried out by suitably qualified staff. Thi
22、s European Standard specifies a method for the determination of total bound nitrogen after oxidation of inorganic and organic nitrogen compounds by combustion to nitrogen oxides. Quantification is carried out by chemiluminescence. The procedure referred to in the normative part is the reference meth
23、od. Whilst staying within the scope of this standard, it is permissible to use such alternatives as given in annex A only, provided that their performance is equal to or better than that given in clause 13 and tables in annex B and C, when calculated using procedures given in ISO 5725-2, and when th
24、e comparison of performance data between this European Standard and any alternative technique is carried out using the procedures described in ISO 2854. All references to nitrogen concentrations are expressed in units of mg/l N, i.e. milligrams of nitrogen per litre solution. Licensed Copy: sheffiel
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