BS EN 15703-2-2014 Copper and copper alloys Determination of manganese content Flame atomic absorption spectrometric method (FAAS)《铜和铜合金 锰含量的测定 火焰原子吸收光谱法 (FAAS)》.pdf
《BS EN 15703-2-2014 Copper and copper alloys Determination of manganese content Flame atomic absorption spectrometric method (FAAS)《铜和铜合金 锰含量的测定 火焰原子吸收光谱法 (FAAS)》.pdf》由会员分享,可在线阅读,更多相关《BS EN 15703-2-2014 Copper and copper alloys Determination of manganese content Flame atomic absorption spectrometric method (FAAS)《铜和铜合金 锰含量的测定 火焰原子吸收光谱法 (FAAS)》.pdf(18页珍藏版)》请在麦多课文档分享上搜索。
1、BSI Standards PublicationBS EN 15703-2:2014Copper and copper alloys Determination of manganesecontentPart 2: Flame atomic absorptionspectrometric method (FAAS)BS EN 15703-2:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 15703-2:2014. The UK participation i
2、n its preparation was entrusted to TechnicalCommittee NFE/34/1, Wrought and unwrought copper and copper alloys.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Us
3、ers are responsible for its correct application. The British Standards Institution 2014.Published by BSI Standards Limited 2014ISBN 978 0 580 83959 7 ICS 77.040.30; 77.120.30 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under th
4、e authority of the Standards Policy and Strategy Committee on 31 December 2014.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15703-2 December 2014 ICS 77.040.30; 77.120.30 English Version Copper and copper alloys - Dete
5、rmination of manganese content - Part 2: Flame atomic absorption spectrometric method (FAAS)Cuivre et alliages de cuivre - Dtermination de manganse - Partie 2: Mthode par spectromtrie dabsorption atomique dans la flamme (SAAF) Kupfer und Kupferlegierungen - Bestimmung des Mangangehaltes - Teil 2: Fl
6、ammenatomabsorptionsspektrometrisches Verfahren (FAAS) This European Standard was approved by CEN on 8 November 2014. 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 a
7、ny alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other langu
8、age made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark
9、, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FO
10、R STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15703-2:2014 EBS EN 15703-2:2014E
11、N 15703-2:2014 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Principle 4 4 Reagents .4 4.1 Hydrochloric acid, HCl ( = 1,19 g/ml) .4 4.2 Nitric acid, HNO3( = 1,40 g/ml) 4 4.3 Hydrofluoric acid, HF ( = 1,13 g/ml) .4 4.4 Nitric acid solution, 1 + 1 4 4.5 Lanthanum(III) chloride so
12、lution, 100 g/l .4 4.6 Sulphuric acid, H2SO4( = 1,84 g/ml) .4 4.7 Sulphuric acid solution, 1 + 9 .5 4.8 Manganese stock solution, 1,0 g/l Mn .5 4.9 Manganese standard solution, 0,10 g/l 5 4.10 Manganese standard solution, 0,010 g/l 5 4.11 Copper matrix solution, 20 g/l Cu 5 4.12 Copper matrix soluti
13、on, 2 g/l Cu 5 5 Apparatus .5 5.1 Atomic absorption spectrometer, fitted with an air/acetylene burner .5 5.2 Manganese hollow-cathode lamp 6 6 Sampling .6 7 Procedure .6 7.1 Preparation of the test portion solution 6 7.2 Blank test 7 7.3 Check test .7 7.4 Establishment of the calibration curve .7 7.
14、5 Determination 10 8 Expression of results . 10 8.1 Use of the calibration curve . 10 8.2 Use of the bracketing method . 11 9 Precision 12 10 Test report . 13 Bibliography . 14 BS EN 15703-2:2014EN 15703-2:2014 (E) 3 Foreword This document (EN 15703-2:2014) has been prepared by Technical Committee C
15、EN/TC 133 “Copper and copper alloys”, 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 the latest by June 2015 and conflicting national standards shall be withdrawn at th
16、e latest by June 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. Within its programme of work, Technical Committee CEN/TC 133 re
17、quested CEN/TC 133/WG 10 “Methods of analysis” to prepare the following standard: EN 15703-2, Copper and copper alloys Determination of manganese content Part 2: Flame atomic absorption spectrometric method (FAAS) This is one of two Parts of the standard/Technical Specification for the determination
18、 of manganese content in copper and copper alloys. The other Part is: CEN/TS 15703-1, Copper and copper alloys Determination of manganese content Part 1: Spectrophotometric method According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are b
19、ound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portu
20、gal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 15703-2:2014EN 15703-2:2014 (E) 4 1 Scope This European Standard specifies a flame atomic absorption spectrometric method (FAAS) for the determination of the manganese content of copper and copper allo
21、ys in the form of unwrought, wrought and cast products. The method is applicable to products having manganese mass fractions between 0,001 0 % and 6,0 %. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its app
22、lication. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 1811-1, Copper and copper alloys Selection and preparation of samples for chemical analysis Part 1: Sampling of cast unwrought
23、 products ISO 1811-2, Copper and copper alloys Selection and preparation of samples for chemical analysis Part 2: Sampling of wrought products and castings 3 Principle Dissolution of a test portion in hydrochloric acid and nitric acid followed, after suitable dilution and the addition of lanthanum c
24、hloride to mask the effect of interfering ions, by aspiration into an air/acetylene flame of an atomic absorption spectrometer. Measurement of the absorption of the 279,5 nm or 403,1 nm line emitted by a manganese hollow-cathode lamp. 4 Reagents During the analysis, use only reagents of recognized a
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