EN 15916-2:2010

Copper and copper alloys - Determination of tellurium content - Part 2: Medium tellurium content - Flame atomic absorption spectrometric method (FAAS)

This European Standard specifies a flame atomic absorption spectrometric method (FAAS) for the determination of the tellurium content of copper and copper alloys in form of castings or unwrought or wrought products.
The method is applicable to products having tellurium mass fractions between 0,20 % and 1,00 %.

Kupfer und Kupferlegierungen - Bestimmung des Tellurgehaltes - Teil 2: Mittlerer Tellurgehalt - Flammenatomabsorptionsspektrometrisches Verfahren (FAAS)

Diese Europäische Norm legt ein flammenatomabsorptionsspektrometrisches Verfahren (FAAS) für die Bestimmung des Tellurgehaltes in Kupfer und Kupferlegierungen fest, die als Gussstücke oder als plastisch oder nicht plastisch geformte Produkte vorliegen.
Das Verfahren ist geeignet für Produkte mit Tellur-Massenanteilen zwischen 0,20 % und 1,00 %.

Cuivre et alliages de cuivre - Détermination du tellure - Partie 2: Tellure en moyenne teneur - 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 tellure 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 en tellure comprises entre 0,20 % et 1,00 %.

Baker in bakrove zlitine - Določevanje telurja - 2. del: Srednja koncentracija telurja - Metoda z uporabo spektrometrije s plamensko atomsko absorpcijo (FAAS)

Ta evropski standard določa metodo z uporabo spektrometrije s plamensko atomsko absorpcijo (FAAS) za določevanje telurja v bakru in bakrovih zlitinah v obliki ulitih ali negnetenih oziroma gnetenih polizdelkov. Metoda velja za polizdelke z masnim deležem telurja med 0,20 % in 1,00 %.

General Information

• Status: Published
• Publication Date: 27-Jul-2010
• ICS: 77.040.30 - Chemical analysis of metals
• ICS: 77.120.30 - Copper and copper alloys
• Technical Committee: CEN/TC 133 - Copper and copper alloys
• Drafting Committee: CEN/TC 133/WG 10 - Methods of analysis
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 19-Nov-2020
• Completion Date: 26-Nov-2025
• Ref Project: SIST EN 15916-2:2010 - Copper and copper alloys - Determination of tellurium content - Part 2: Medium tellurium content - Flame atomic absorption spectrometric method (FAAS)

Overview

EN 15916-2:2010 - "Copper and copper alloys - Determination of tellurium content - Part 2: Medium tellurium content - Flame atomic absorption spectrometric method (FAAS)" is a CEN standard specifying a validated FAAS procedure for measuring tellurium (Te) in copper and copper alloys. The method applies to castings and unwrought or wrought products with tellurium mass fractions between 0.20 % and 1.00 %. It defines sampling, reagents, apparatus, calibration and calculation procedures to produce traceable, comparable results.

Key topics and technical requirements

• Scope and matrix: Applicable to Cu and Cu-alloys (cast/unwrought/wrought) with Te 0.20–1.00 %.
• Principle: Dissolve a test portion in nitric acid, dilute, aspirate into an air/acetylene flame and measure absorption of the Te 214.3 nm line using a tellurium hollow‑cathode lamp.
• Sample/test portion: Typical test portion is 0.50 g (fine drillings, chips or millings ≤ 0.5 mm) dissolved and diluted to a defined final volume (100 ml).
• Reagents and standards: Analytical-grade nitric and hydrochloric acids; a 1 g/l Te stock solution and a 10 g/l Cu base solution are used to prepare matrix-matched calibration standards.
• Calibration: Use a series of calibration solutions (six standards recommended) with copper, chloride and nitrate concentrations matched to test solutions; add alloying elements to calibration solutions if they exceed 10 % in the sample. Bracketing (±10 %) is allowed as an alternative for final measurement.
• Instrument setup: Flame AAS with air/acetylene burner on oxidising conditions. Lamp stabilization and burner/gas adjustments are required for maximum absorbance.
• Quality checks: Blank test, check test with reference material or synthetic sample, filtration if AgCl precipitate forms.
• Results & reporting: Calculation of tellurium mass fraction from measured concentration, sample mass and dilution volume. Test report must reference EN 15916-2 and include sample ID, method, results, deviations and signatures.
• Precision: Interlaboratory validation (10 labs) reported a reference value ~0.61 % Te with repeatability r = 0.012 % and reproducibility R = 0.022 %.

Applications and users

• Quality control and acceptance testing in copper alloy production and foundries.
• Metallurgical and chemical analysis laboratories performing compositional certification.
• Material verification for connectors, electrical components and specialty Cu-alloys where controlled Te content influences machinability and properties.
• Research labs and conformity assessment bodies needing a standardized FAAS method for medium tellurium content.

Related standards

• EN 15916-1: Determination of low tellurium content (FAAS) - companion standard.
• ISO 1811‑1 and ISO 1811‑2: Sampling of copper and copper alloys for chemical analysis.
• ISO 5725 series: Accuracy (trueness and precision) of measurement methods.

Keywords: EN 15916-2:2010, tellurium determination, copper alloys, FAAS, flame atomic absorption, tellurium 214.3 nm, calibration, sampling, CEN.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.)$$6Kupfer und Kupferlegierungen - Bestimmung von Tellurgehalten - Teil 2: Mittlerer Tellurgehalt - Flammenatomabsorptionsspektrometrisches Verfahren (FAAS)Cuivre et alliages de cuivre - Détermination du tellure - Partie 2: Tellure en moyenne teneur - Méthode par spectrométrie d'absorption atomique dans la flamme (SAAF)Copper and copper alloys - Determination of tellurium content - Part 2: Medium tellurium content - Flame atomic absorption spectrometric method (FAAS)77.120.30Baker in bakrove zlitineCopper and copper alloys77.040.30Kemijska analiza kovinChemical analysis of metalsICS:Ta slovenski standard je istoveten z:EN 15916-2:2010SIST EN 15916-2:2010en,de01-oktober-2010SIST EN 15916-2:2010SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15916-2
July 2010 ICS 77.040.30; 77.120.30 English Version
Copper and copper alloys - Determination of tellurium content - Part 2: Medium tellurium content - Flame atomic absorption spectrometric method (FAAS)
Cuivre et alliages de cuivre - Détermination du tellure - Partie 2: Tellure en moyenne teneur - Méthode par spectrométrie d'absorption atomique dans la flamme (SAAF)
Kupfer und Kupferlegierungen - Bestimmung von Tellurgehalten - Teil 2: Mittlerer Tellurgehalt - 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
Management Centre:
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 15916-2:2010: ESIST EN 15916-2:2010

= 1,40 g/ml). 4.2 Hydrochloric acid, HCl (ρ
= 1,19 g/ml). 4.3 Nitric acid solution, 2 + 1. Add 200 ml of nitric acid (4.1) to 100 ml of water. 4.4 Hydrochloric acid solution, HCl (2 mol/l). In a 1 000 ml one-mark volumetric flask containing about 500 ml of water, add 165 ml of hydrochloric acid (4.2). Dilute to the mark with water and mix well. 4.5 Tellurium stock solution, 1 g/l Te. Weigh (0,5 ± 0,001) g of tellurium (Te > 99,9 %) and transfer it into a 250 ml beaker. Add 10 ml of nitric acid solution (4.3) and dissolve on a water bath. Evaporate to a wet residue, and then dissolve in 10 ml of hydrochloric acid solution (4.4). Transfer to a 500 ml one-mark volumetric flask, dilute to the mark with hydrochloric acid solution (4.4) and mix well. 1 ml of this solution contains 1,0 mg of Te. SIS
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