BS-EN-12441-9-2004.pdf
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1、BRITISH STANDARD BS EN 12441-9:2004 Zinc and zinc alloys Chemical analysis Part 9: Determination of nickel in zinc alloys Flame atomic absorption spectrometric method The European Standard EN 12441-9:2004 has the status of a British Standard ICS 77.040.30; 77.120.60 ? Licensed Copy: sheffieldun shef
2、fieldun, na, Sat Oct 28 07:06:19 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 12441-9:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 14 January 2005 BSI 14 January 2005 ISBN 0 580 45286 7 National foreword This British Standard is t
3、he official English language version of EN 12441-9:2004. The UK participation in its preparation was entrusted to Technical Committee NFE/8, Zinc, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The
4、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 Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards
5、 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 Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the resp
6、onsible international/European committee any enquiries on the interpretation, or 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 co
7、ver, the EN title page, pages 2 to 11 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 07:06:19 GMT+00:00 2006, Uncontrol
8、led Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12441-9 December 2004 ICS 77.040.30; 77.120.60 English version Zinc and zinc alloys - Chemical analysis - Part 9: Determination of nickel in zinc alloys - Flame atomic absorption spectrometric method Zinc et alliages de zinc - An
9、alyse chimique - Partie 9 : Dosage du nickel dans les alliages de zinc - Mthode par spectromtrie dabsorption atomique dans la flamme Zink und Zinklegierungen - Chemische Analyse - Teil 9: Bestimmung von Nickel in Zinklegierungen - FAAS- Verfahren This European Standard was approved by CEN on 4 Novem
10、ber 2004. 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 such national standards may be obt
11、ained 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 and notified to the Central Sec
12、retariat 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, Netherlands, Norway, Poland, P
13、ortugal, 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 2004 CENAll rights of exploitation in any form and by any means rese
14、rved worldwide for CEN national Members. Ref. No. EN 12441-9:2004: E Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 07:06:19 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12441-9:2004 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references4 3 Terms and definitions .4 4 Principle4 5 Re
15、agents.4 6 Apparatus .5 7 Sampling.6 8 Procedure .6 9 Calculation and expression of results.7 10 Test report8 Annex A (informative) Additional information on international co-operative tests .9 Annex B (informative) Graphical representation of precision data .10 Bibliography11 Licensed Copy: sheffie
16、ldun sheffieldun, na, Sat Oct 28 07:06:19 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12441-9:2004 (E) 3 Foreword This document (EN 12441-9:2004) has been prepared by Technical Committee CEN/TC 209 “Zinc and zinc alloys”, the secretariat of which is held by AFNOR. This European Standard shall be g
17、iven the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2005, and conflicting national standards shall be withdrawn at the latest by June 2005. Within its programme of work, Technical Committee CEN/TC 209 entrusted CEN/TC 209/WG6 “M
18、ethods of analysis and testing“ to prepare the following document: EN 12441-9, Zinc and zinc alloys Chemical analysis Part 9: Determination of nickel in zinc alloys Flame atomic absorption spectrometric method. This document is a part of a series of eleven standards. The other documents are: Part 1:
19、 Determination of aluminium in zinc alloys Titrimetric method Part 2: Determination of magnesium in zinc alloys Flame atomic absorption spectrometric method Part 3: Determination of lead, cadmium and copper Flame atomic absorption spectrometric method Part 4: Determination of iron in zinc alloys Spe
20、ctrophotometric method Part 5: Determination of iron in primary zinc Spectrophotometric method Part 6: Determination of aluminium and iron Flame atomic absorption spectrometric method Part 7: Determination of tin Flame atomic absorption spectrometric method after extraction Part 8: Determination of
21、tin in secondary zinc Flame atomic absorption spectrometric method Part 10: Determination of chromium and titanium in zinc alloys Spectrophotometric method Part 11: Determination of silicon in zinc alloys Spectrophotometric method According to the CEN/CENELEC Internal Regulations, the national stand
22、ards 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, Poland, Portugal, Sl
23、ovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 07:06:19 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12441-9:2004 (E) 4 1 Scope This document specifies a flame atomic absorption spectrometric method for the determination of ni
24、ckel in zinc alloys. It is applicable to the products specified in EN 1774 and EN 12844. It is suitable for the determination of nickel contents (mass fractions) between 0,000 5 % and 0,020 %. 2 Normative references The following referenced documents are indispensable for the application of this doc
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