1、BRITISH STANDARD BS EN ISO 3815-1:2005 Zinc and zinc alloys Part 1: Analysis of solid samples by optical emission spectrometry The European Standard EN ISO 3815-1:2005 has the status of a British Standard ICS 77.120.60 BS EN ISO 3815-1:2005 This British Standard was published under the authority of
2、the Standards Policy and Strategy Committee on 10 August 2005 BSI 10 August 2005 ISBN 0 580 46225 0 National foreword This British Standard is the official English language version of EN ISO 3815-1:2005. It is identical with ISO 3815-1:2005. BS EN ISO 3815-1:2005 together with BS EN ISO 3815-2:2005
3、supersedes BS EN 12019:1998 which is withdrawn. 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 British S
4、tandards which implement international 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 Online. This publica
5、tion 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 responsible international
6、/European committee any enquiries on the interpretation, or proposals for change, and keep 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 ISO title pag
7、e, the EN ISO foreword page, the ISO title page, pages ii and iii, a blank page, pages 1 to 6, an inside back cover 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. Date Comments EUROPEAN S
8、TANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 3815-1 May 2005 ICS 77.120.60 Supersedes EN 12019:1997 English version Zinc and zinc alloys - Part 1: Analysis of solid samples by optical emission spectrometry (ISO 3815-1:2005) Zinc et alliages de zinc - Partie 1: Analyse dchantillons massifs par spec
9、tromtrie dmission optique (ISO 3815- 1:2005) Zink und Zinklegierungen - Teil 1: Optische Emissionsspektrometrie an festen Proben (ISO 3815- 1:2005) This European Standard was approved by CEN on 12 April 2005. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate t
10、he 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 Secretariat or to any CEN member. This European Standard exists i
11、n 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 official versions. CEN members are the national standards bodies
12、of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR ST
13、ANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 3815-1:2005: E Foreword This document (EN I
14、SO 3815-1:2005) has been prepared by Technical Committee ISO/TC 18 “Zinc and zinc alloys“ in collaboration with 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 publica
15、tion of an identical text or by endorsement, at the latest by November 2005, and conflicting national standards shall be withdrawn at the latest by November 2005. This document supersedes EN 12019:1997. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the fo
16、llowing 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, Slovakia, Slovenia, Spain, Swe
17、den, Switzerland and United Kingdom. Endorsement notice The text of ISO 3815-1:2005 has been approved by CEN as EN ISO 3815-1:2005 without any modifications. EN ISO 3815-1:2005 Reference number ISO 3815-1:2005(E)INTERNATIONAL STANDARD ISO 3815-1 First edition 2005-05-01 Zinc and zinc alloys Part 1:
18、Analysis of solid samples by optical emission spectrometry Zinc et alliages de zinc Partie 1: Analyse dchantillons massifs par spectromtrie dmission optique EN ISO 3815-1:2005 ii iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodi
19、es (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations
20、, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the IS
21、O/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the
22、member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 3815-1 was prepared by Technical Committee ISO/TC 18, Zinc and zinc
23、 alloys, Subcommittee SC 1, Methods of sampling and analysis of zinc and zinc alloys. This first edition of ISO 3815-1 cancels and replaces ISO 3815:1976, which has been technically revised. ISO 3815 consists of the following parts, under the general title Zinc and zinc alloys: Part 1: Analysis of s
24、olid samples by optical emission spectrometry Part 2: Analysis by inductively coupled plasma optical emission spectrometry EN ISO 3815-1:2005 blank1Zinc and zinc alloys Part 1: Analysis of solid samples by optical emission spectrometry 1 Scope This part of ISO 3815 specifies analytical methods for d
25、etermining the chemical composition of zinc and zinc alloys in accordance with ISO 301 and ISO 752 by optical emission spectrometry. This part of ISO 3815 includes recommendations for preparation of test pieces from zinc and zinc alloys. 2 Normative references The following referenced documents are
26、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. ISO 301, Zinc alloy ingots intended for casting ISO 752:2004, Zinc ingots ISO 20081: 1)
27、, Zinc and zinc alloys Method of sampling Specifications 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 301, ISO 752, ISO 20081 and the following apply. 3.1 optical emission spectrometry measurement of the intensity of electromagnetic radiation emit
28、ted by the components of a sample when excited NOTE Each element emits radiation of well defined and specific wavelength, whose intensity is linked to its concentration. 4 Sampling Sampling shall be in accordance with ISO 20081: 1) , 7.1. 1) To be published. EN ISO 3815-1:2005 EN ISO 3815-1:2005 2 5
29、 Preparation of test pieces Test pieces shall be prepared so that they are suitable for optical emission spectrometry. The shape and size of test pieces are dependent upon the sample holder and apparatus used. The surface of test pieces shall be prepared according to requirements given in the operat
30、ion manual of the apparatus used. 6 Test procedure 6.1 General Analysis shall be carried out by optical emission spectrometry using solid test pieces prepared in accordance with Clause 5. For analysis of the impurities and alloying elements in zinc and zinc alloys as defined in ISO 301 and ISO 752 b
31、y optical emission spectrometry, different analytical lines can be used. A list of appropriate wavelengths of analytical lines is given in Annex A. Which of the different analytical lines is used depends on the analytical programme and the type of spectrometer. The reproducibility of the apparatus u
32、sed shall be in accordance with the values given in Annex B. 6.2 Calibration The apparatus used shall be suitable for the detection and determination of all elements specified in the relevant product standard (see 6.1). For the calibration of the spectrometer, certified reference materials (CRM) sho
33、uld be used primarily, reference materials (RM) secondarily and internal reference materials (IRM) last of all. If IRMs are used, their chemical composition shall be determined by the methods of analysis as specified in 8.1 of ISO 752:2004. The apparatus shall be re-calibrated within a reasonable ti
34、me. The reference samples used for re-calibrating the apparatus shall have physical and chemical properties similar to the sample to be analysed. 6.3 Method of testing In general, each test piece shall be tested at least two times. If heterogeneity or malfunction of the spectrometer is suspected, ad
35、ditional tests shall be performed on the same sample using a new surface. NOTE In the specific case of producer labs, if sampling frequency is high enough and historical data supports it, each test piece need only be tested once, provided that the result for the lot to be analysed is the average of
36、at least two tests. 6.4 Expression of results Test results shall be expressed as mass fraction, calculated as the arithmetic mean of all valid single results of the test sequence according to 6.3, excluding failing single test. Results shall be expressed as defined in ISO 301 and ISO 752. EN ISO 381
37、5-1:2005 36.5 Test report The test report shall include the following items: a) identification of sample; b) test result of each test sequence according to 6.4; c) name of laboratory or testing organization; d) date of the test report; e) reference to this part of ISO 3815 (ISO 3815-1:2005); f) sign
38、ature of the laboratory manager or other responsible person. 4 Annex A (informative) List of analytical lines Table A.1 provides a list of analytical lines, in nanometres, commonly used for analysis of zinc and zinc alloys by optical emission spectrometry. Table A.1 Element Analytical lines nm Zn 48
39、1,0 Pb 405,7 a ; 368,3 Cd 228,8; 361,0 Fe 371,9 Cu 327,4; 324,7; 510,5 bSn 317,5 Al 396,1; 394,4; 305,2 cMg 285,20; 279,08; 382,93 aPb 405,7 is used for Pb concentrations up to 1,5 %. bCu 510,5 is used for Cu concentrations from 0,5 % to 5 %. cAl 305,2 is used for Al concentrations from 4 % to 30 %.
40、 EN ISO 3815-1:2005 5Annex B (informative) Reproducibility Table B.1 provides an example of coefficients of variation characterizing optical emission spectrometers, representing the average of 10 flashings per test piece. Table B.1 Element Content % (mass fraction) Coefficient of variation % Pb 0,01
41、 2 Cd 0,01 2 Sn 0,01 2 Fe 0,01 3 Cu 0,001 1 Cu 1 1 Al 0,001 3 Al 4,0 1 Mg 0,1 2 EN ISO 3815-1:2005 6 Annex C (informative) Limits of detection Table C.1 provides data on best achievable limits of detection (LOD) for spark optical emission spectrometers (OES). Table C.1 Element Line nm LOD ag/g Pb 40
42、5,7 1 Cd 228,8 0,1 Fe 371,8 1 Cu 324,7 1 Sn 317,5 1 Al 396,1 0,2 Mg 279,0 1 aLOD = 3 s 0 , where s 0= standard deviation at zero concentration. EN ISO 3815-1:2005 blankBS EN ISO 3815-1:2005 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national bod
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