SIST EN 15023-3:2010
(Main)Copper and copper alloys - Determination of nickel content - Part 3: Flame atomic absorption spectrometry method (FAAS)
Copper and copper alloys - Determination of nickel content - Part 3: Flame atomic absorption spectrometry method (FAAS)
This European Standard specifies a flame atomic absorption spectrometric method (FAAS) for the determination of the nickel content of copper and copper alloys in the form of unwrought, wrought and cast products. The method is applicable to products having a nickel mass fractions between 0,001 % and 6,0 %.
Kupfer und Kupferlegierungen - Bestimmung des Nickelgehaltes - Teil 3: Flammenatomabsorptionsspektrometrisches Verfahren (FAAS)
Diese Europäische Norm legt ein flammenatomabsorptionsspektrometrisches Verfahren (FAAS) für die
Bestimmung des Nickelgehaltes in Kupfer und Kupferlegierungen fest, die als Gussstücke oder als plastisch
oder nicht plastisch geformte Produkte vorliegen.
Das Verfahren ist geeignet für Produkte mit einem Nickel-Massenanteil zwischen 0,001 % und 6,0 %.
Cuivre et alliages de cuivre - Dosage du nickel - Partie 3: Méthode par spectrométrie d'absorption atomique dans la flamme (SAAF)
La présente Norme européenne spécifie une méthode par spectrométrie d’absorption atomique dans la
flamme (SAAF) pour la détermination du nickel dans le cuivre et les alliages de cuivre, sous forme de produits
non corroyés, corroyés et moulés.
La méthode est applicable aux produits ayant des teneurs (fraction en masse) en nickel comprises
entre 0,001 % et 6,0 %.
Baker in bakrove zlitine - Določevanje niklja - 3. del: Metoda s plamensko atomsko absorpcijsko spektrometrijo (FAAS)
Ta evropski standard določa metodo z uporabo spektrometrije s plamensko atomsko absorpcijo (FAAS) za določevanje niklja v bakru in bakrovih zlitinah v obliki negnetenih, gnetenih in ulitih polizdelkov. Metoda velja za polizdelke z masnim deležem niklja med 0,001 % in 6.0 %.
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kupfer und Kupferlegierungen - Bestimmung des Nickelgehaltes - Teil 3: Flammenatomabsorptionsspektrometrisches Verfahren (FAAS)Cuivre et alliages de cuivre - Dosage du nickel - Partie 3: Méthode par spectrométrie d'absorption atomique dans la flamme (SAAF)Copper and copper alloys - Determination of nickel content - Part 3: Flame atomic absorption spectrometry method (FAAS)77.120.30Baker in bakrove zlitineCopper and copper alloysICS:Ta slovenski standard je istoveten z:EN 15023-3:2010SIST EN 15023-3:2010en,de01-oktober-2010SIST EN 15023-3:2010SLOVENSKI
STANDARDSIST-TS CEN/TS 15023-3:20071DGRPHãþD
SIST EN 15023-3:2010
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15023-3
July 2010 ICS 77.120.30 Supersedes CEN/TS 15023-3:2006English Version
Copper and copper alloys - Determination of nickel content - Part 3: Flame atomic absorption spectrometric method (FAAS) Cuivre et alliages de cuivre - Détermination du nickel - Partie 3: Méthode par spectrométrie d'absorption atomique dans la flamme (SAAF)
Kupfer und Kupferlegierungen - Bestimmung des Nickelgehaltes - Teil 3: Flammenatomabsorptionsspektrometrisches Verfahren (FAAS) This European Standard was approved by CEN on 19 June 2010.
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 obtained on application to the CEN 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 CEN member into its own language and notified to the CEN 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, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
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Avenue Marnix 17,
B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15023-3:2010: ESIST EN 15023-3:2010
EN 15023-3:2010 (E) 2 Contents Page Foreword .31Scope .42Normative references .43Principle .44Reagents .45Apparatus .56Sampling .57Procedure .57.1Preparation of the test portion solution .57.1.1General .57.1.2Nickel mass fractions between 0,001 % and 0,012 5 % .57.1.3Nickel mass fractions between 0,01 % and 0,25 % .67.1.4Nickel mass fractions between 0,2 % and 6,0 % .67.2Blank test .67.3Check test .67.4Establishment of the calibration curve .77.4.1Preparation of the calibration solutions .77.4.2Adjustment of the atomic absorption spectrometer .97.4.3Spectrometric measurement of the calibration solutions .97.4.4Calibration curve.97.5Determination .97.5.1General .97.5.2Preliminary spectrometric measurement .97.5.3Spectrometric measurements .98Expression of results . 108.1Use of calibration curve . 108.2Use of bracketing method . 109Precision . 1110Test report . 12Bibliography . 13 SIST EN 15023-3:2010
EN 15023-3:2010 (E) 3 Foreword This document (EN 15023-3:2010) has been prepared by Technical Committee CEN/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 January 2011, and conflicting national standards shall be withdrawn at the latest by January 2011. 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. This document supersedes CEN/TS 15023-3:2006. Within its programme of work, Technical Committee CEN/TC 133 requested CEN/TC 133/WG 10 "Methods of analysis" to prepare the revision of the following document: CEN/TS 15023-3:2006, Copper and copper alloys — Determination of nickel content — Part 3: Flame atomic absorption spectrometry method (FAAS). In comparison with the first edition of CEN/TS 15023-3:2006, the following significant technical changes were made: − Transformation into a European Standard; − In 7.4.1.1, text added; − Clause 9, Precision - completely revised. This is one of the three parts of the standard for the determination of nickel content in copper and copper alloys. The other parts are: − prEN 15023-1, Copper and copper alloys — Determination of nickel content — Part 1: Spectrophotometric method; − prEN 15023-2, Copper and copper alloys — Determination of nickel content — Part 2: Titrimetric method. Part 1 and Part 2 will be the subjects of future work. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. SIST EN 15023-3:2010
EN 15023-3:2010 (E) 4 1 Scope This European Standard specifies a flame atomic absorption spectrometric method (FAAS) for the determination of the nickel content of copper and copper alloys in the form of unwrought, wrought and cast products. The method is applicable to products having a nickel mass fractions between 0,001 % and 6,0 %. 2 Normative references The following referenced documents are 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 1811-1, Copper and copper alloys — Selection and preparation of samples for chemical analysis — Part 1: Sampling of cast unwrought 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 and nitric acid solution followed, after suitable dilution and the addition of lanthanum chloride 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 232,0 nm or the 352,4 nm line emitted by a nickel hollow-cathode lamp. 4 Reagents During the analysis, use only reagents of recognized analytical grade and only distilled water or water of equivalent purity. 4.1 Hydrochloric acid, HCl (ρ = 1,19 g/ml). 4.2 Nitric acid, HNO3 (ρ = 1,40 g/ml). 4.3 Nitric acid solution, 1 + 1. Add 500 ml of nitric acid (4.2) to 500 ml of water.
4.4 Lanthanum (III) chloride solution, 100 g/l. Dissolve 50 g of lanthanum (III) chloride heptahydrate (LaCl3 · 7H2O) in a 400 ml beaker with water and transfer the solution into a 500 ml one-mark volumetric flask. Dilute to the mark with water and mix. 4.5 Nickel stock solution, 1,0 g/l Ni. Weigh (1 ± 0,001) g of nickel (Ni ≥ 99,8 %) and transfer it into a 250 ml beaker. Add 10 ml of hydrochloric acid (4.1) and 10 ml of the nitric acid solution (4.3). Cover with a watch glass and, if necessary, heat gently to assist dissolution. When dissolution is complete, cool to room temperature and transfer the solution quantitatively into a 1 000 ml one-mark volumetric flask, dilute to the mark with water and mix. 1 ml of this solution contains 1,0 mg of Ni. 4.6 Nickel standard solution, 0,1 g/l Ni. SIST EN 15023-3:2010
EN 15023-3:2010 (E) 5 Transfer 20,0 ml of nickel stock solution (4.5) into a 200 ml one-mark volumetric flask. Dilute to the mark with water and mix. Prepare this solution immediately prior to use. 1 ml of this solution contains 0,1 mg of Ni. 4.7 Nickel standard solution, 0,01 g/l Ni. Transfer 5,0 ml of nickel stock solution (4.5) into a 500 ml one-mark volumetric flask. Dilute to the mark with water and mix. Prepare this solution immediately prior to use. 1 ml of this solution contains 0,01 mg of Ni. 4.8 Copper base solution, 40 g/l Cu. Transfer 20,0 g of nickel-free copper (Cu ≥ 99,95 %) into an 1 000 ml beaker. Add 100 ml of hydrochloric acid (4.1) and, cautiously, 200 ml of nitric acid solution (4.3). Cover with a watch glass and heat gently until the copper has been completely dissolved, then heat up to the boiling point until the nitrous fumes have been expelled. Cool to room temperature and transfer the solution quantitatively into a 500 ml one-mark volumetric flask, dilute to the mark with water and mix. 4.9 Copper base solution, 2 g/l Cu. Transfer 25,0 ml of copper base solution (4.8) into a 500 ml one-mark volumetric flask. Add 95 ml of hydrochloric acid (4.1) and 190 ml of nitric acid solution (4.3). Dilute to the mark with water and mix. 5 Apparatus 5.1 Atomic absorption spectrometer, fitted with an air/acetylene burner. 5.2 Nickel hollow-cathode lamp. 6 Sampling Sampling shall be carried out in accordance with ISO 1811-1 or ISO 1811-2, as appropriate. Test samples shall be in the form of fine drillings, chips or millings, with a maximum thickness of 0,5 mm. 7 Procedure 7.1 Preparation of the test portion solution 7.1.
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