1、DEUTSCHE NORM February 2005DIN EN 12441-2 No part of this standard may be reproduced without the prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).English price group 9 www.di
2、n.de www.beuth.de06.05 9631723Document comprises 10 pages.Zinc and zinc alloys Chemical analysisPart 2: Determination of magnesium in zinc alloys Flame atomic absorption spectrometric method(includes Amendments A1 : 2003 + A2 : 2004)English version of DIN EN 12441-2 : 2001 + A1 : 2003 + A2 : 2004Zin
3、k und Zinklegierungen Chemische Analyse Teil 2: Bestimmung von Magnesium in Zinklegierungen FAAS-Verfahren (enthlt nderung A1 : 2003 + A2 : 2004)A comma is used as the decimal marker.National forewordThis standard has been prepared by CEN/TC 209 Zinc and zinc alloys (Secretariat: France).The respons
4、ible German body involved in its preparation was the Normenausschuss Nichteisenmetalle (Nonferrous Metals Standards Committee), Technical Committee Zink.AmendmentsThis standard differs from the September 2003 edition in that it has been editorially revised.Previous editionsDIN ISO 3750: 1984-05; DIN
5、 EN 12441-2: 2002-02, 2003-09.ICS 77.040.30; 77.120.60 Supersedes September 2003 edition.English versionICS 77.040.30; 77.120.60 Supersedes EN 12441-2 : 2003.Management Centre: rue de Stassart 36, B-1050 BrusselsEuropean Committee for StandardizationComit Europen de NormalisationEuropisches Komitee
6、fr Normung 2004. CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national members.Ref. No. EN 12441-2 : 2001 + A1 : 2003 + A2 : 2004 EEN December 2004Zinc and zinc alloys Chemical analysisPart 2: Determination of magnesium in zinc alloys Flame atomic absorption
7、 spectrometric method(includes Amendments A1 : 2003 + A2 : 2004)Zinc et alliages de zinc Analyse chimi-que Partie 2: Dosage du magnsium dans les alliages de zinc Mthode par spectromtrie dabsorption ato- mique dans la amme (amendements A1 : 2003 + A2 : 2004 inclus)Zink und Zinklegierungen Chemi-sche
8、Analyse Teil 2: Bestimmung von Magnesium in Zinklegierungen FAAS-Verfahren (enthlt nderung A1 : 2003 + A2 : 2004)This European Standard was approved by CEN on 2001-08-11, Amendment A1 on 2003-03-18 and Amendment A2 on 2004-10-21.CEN members are bound to comply with the CEN/CENELEC Internal Regulatio
9、ns 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 Management Centre or to any CEN member.The European St
10、andards exist in three ofcial 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 notied to the Management Centre has the same status as the ofcial versions.CEN members are the national standards b
11、odies of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland, and the United Kingdom.EN 1244
12、1-2August 2001+ A1 + A2March 2003 October 2004Page 2 EN 12441-2 : 2001 + A1 : 2003 + A2 : 2004ContentsPageForeword to EN 12441-2 : 2001. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Foreword to EN 12441-2 : 2001/A1 : 2003. . . . . . . . . . . . . . . . . . . . . . . . . .
13、 . . . 2Foreword to EN 12441-2 : 2001/A2 : 2004. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Normative references . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14、. . . . . . . . . . . . . 33 Terms and denitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Principle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Reagents . . . . . . . . . . . . . . . . . . . . .
15、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Apparatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 Procedure
16、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Calculation and expression of results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 610 Test report. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17、 . . . . . . . 7Annex A (informative) Additional information on international round robin tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Annex B (informative) Graphical representation of precision data . . . . . . . . . 9Foreword to EN 12441-2 : 2001This European Standar
18、d 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 given the status of a national standard, either by publication of an identical text or by endorsement, and conicting national standards withdrawn, by
19、 April 2002 at the latest.Within its programme of work, Technical Committee CEN/TC 209 entrusted CEN/TC 209/WG 6 “Methods of analysis and testing”, with the preparation of the following document:prEN 12441-2, Zinc and zinc alloys Chemical analysis Part 2: Determination of magnesium in zinc alloys Fl
20、ame atomic absorption spectrometric method.This standard is part of a series of eleven standards. The other standards are: Part 1: Determination of aluminium in zinc alloys Titrimetric method Part 3: Determination of lead, cadmium and copper Flame atomic absorption spectrometric method Part 4: Deter
21、mination of iron in zinc alloys Spectrophotometric 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 e
22、xtraction Part 8: Determination of tin in secondary zinc Flame atomic absorption spectrometric method Part 9: Determination of nickel in zinc alloys Flame atomic absorption spectrometric method Part 10: Determination of chromium and titanium in zinc alloys Spectrophotometric method Part 11: Determin
23、ation of silicon in zinc alloys Spectrophotometric methodThe annexes A and B are informative.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Fi
24、nland, France, Germany, Greece, Iceland, Ireland, Italy, Luxem-bourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.Foreword to EN 12441-2 : 2001/A1 : 2003This amendment to EN 12441-2 : 2001 has been prepared by Technical Committee CEN/TC 209 Zinc and zinc alloys,
25、the Secretariat of which is held by AFNOR.This amendment shall be given the status of a national standard, either by publication of an identical text or by endorsement, and conicting national standards withdrawn, by November 2003 at the latest.In accordance with the CEN/CENELEC Internal Regulations,
26、 the national standards organizations of the follow-ing countries are bound to implement this European Standard:Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, the Netherlands, Norway, Portugal, Slovakia, Spain, Sw
27、eden, Switzerland, and the United Kingdom.Page 3 EN 12441-2 : 2001 + A1 : 2003 + A2 : 2004Foreword to EN 12441-2 : 2001/A2 : 2004This amendment to EN 12441-2 : 2001 has been prepared by Technical Committee CEN/TC 209 Zinc and zinc alloys, the Secretariat of which is held by AFNOR.This amendment shal
28、l be given the status of a national standard, either by publication of an identical text or by endorsement, and conicting national standards withdrawn, by June 2005 at the latest.In accordance with the CEN/CENELEC Internal Regulations, the national standards organizations of the follow-ing countries
29、 are bound to implement this European Standard:Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Slo-vakia, Slovenia, Spain, Sweden, Swit
30、zerland, and the United Kingdom.Page 4 EN 12441-2 : 2001 + A1 : 2003 + A2 : 2004Page 5 EN 12441-2 : 2001 + A1 : 2003 + A2 : 2004Page 6 EN 12441-2 : 2001 + A1 : 2003 + A2 : 2004Page 7 EN 12441-2 : 2001 + A1 : 2003 + A2 : 2004Page 8 EN 12441-2 : 2001 + A1 : 2003 + A2 : 2004Page 9 EN 12441-2 : 2001 + A1 : 2003 + A2 : 2004
