EN 15690-2:2009

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kupfer und Kupferlegierungen - Bestimmung des Eisengehaltes - Teil 2: Flammenatomabsorptionsspektrometrisches Verfahren (FAAS)Cuivre et alliages de cuivre - Dosage du fer - Partie 2 : Méthode par spectrométrie d'absorption atomique dans la flamme (SAAF)Copper and copper alloys - Determination of iron content - Part 2: Flame atomic absorption spectrometric method (FAAS)77.120.30Baker in bakrove zlitineCopper and copper alloysICS:Ta slovenski standard je istoveten z:EN 15690-2:2009SIST EN 15690-2:2009en,fr01-april-2009SIST EN 15690-2:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15690-2February 2009ICS 77.040.30; 77.120.30 English VersionCopper and copper alloys - Determination of iron content - Part2: Flame atomic absorption spectrometric method (FAAS)Cuivre et alliages de cuivre - Dosage du fer - Partie 2 :Méthode par spectrométrie d'absorption atomique dans laflamme (SAAF)Kupfer und Kupferlegierungen - Bestimmung desEisengehaltes - Teil 2:Flammenatomabsorptionsspektrometrisches Verfahren(FAAS)This European Standard was approved by CEN on 26 December 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15690-2:2009: ESIST EN 15690-2:2009

4.2 Hydrochloric acid, HCl (ρ = 1,19 g/ml) 4.3 Nitric acid, HNO3 (ρ = 1,40 g/ml) 4.4 Nitric acid, (1 + 1) Add 500 ml of nitric acid (4.3) into 500 ml of water. 4.5 Hydrofluoric acid, HF (ρ = 1,13 g/ml) WARNING — Hydrofluoric acid is a hazardous substance. Care shall be taken and it shall be used under an efficient fume hood. SIST EN 15690-2:2009

Transfer the test portion (7.1.1) into a 250 ml beaker. Add 10 ml of hydrochloric acid (4.2) and 10 ml of the nitric acid solution (4.4). Cover with a watch glass and heat gently until the test portion is completely dissolved. Allow to cool. If undissolved matter remains, indicating the presence of silicon, filter the solution. Place the filter paper and contained salts in a platinum crucible and ash, taking care that the filter does not flame. Calcine at about 550 °C. Cool and add 5 ml of hydrofluoric acid (4.5) and five drops of nitric acid (4.3). Evaporate to dryness and calcine again for several minutes at about 700 °C to completely volatilize the silicon. Cool, and then dissolve the residue with the least possible volume of nitric acid solution (4.4). Filter, if necessary, and add this filtrate quantitatively to the original filtrate. 7.1.3 Iron mass fractions between 0,005 % and 0,025 % Transfer the dissolved test portion or the combined filtrates quantitatively into a 100 ml one-mark volumetric flask. Add 10 ml of the lanthanum(III) chloride solution (4.6) and 1 ml of hydrochloric acid (4.2), dilute to the mark with water and mix well. 7.1.4 Iron mass fractions between 0,025 % and 0,5 % Transfer the dissolved test portion or the combined filtrates quantitatively into a 100 ml one-mark volumetric flask. Dilute to the mark with water and mix well. Transfer 20 ml of this solution into a 100 ml one-mark volumetric flask. Add 10 ml of the lanthanum(III) chloride solution (4.6) and 1 ml of hydrochloric acid (4.2), dilute to the mark with water and mix well. 7.1.5 Iron mass fractions between 0,5 % and 5 % Transfer the dissolved test portion or the combined filtrates quantitatively into a 100 ml one-mark volumetric flask, dilute to the mark with water and mix well. Transfer 5 ml of this solution into a 250 ml one-mark volumetric flask. Add 25 ml of the lanthanum(III) chloride solution (4.6) and 1 ml of hydrochloric acid (4.2), dilute to the mark with water and mix well. SIST EN 15690-2:2009
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