SIST EN 16117-2:2014

Copper and copper alloys - Determination of copper content - Part 2: Electrolytic determination of copper in materials with copper content higher than 99,80 %

This European Standard specifies an electrolytic method for the determination of the copper content of unalloyed copper materials with a copper content higher than 99,80 % (mass fraction) in the form of castings, wrought and unwrought products.
Silver, if present, is co-deposited and is reported as copper. Approximately one-half of any selenium and tellurium present will co-deposit. Bismuth, if present, also interferes.

Kupfer und Kupferlegierungen - Bestimmung des Kupfergehaltes - Teil 2: Elektrolytische Bestimmung von Kupfer in Werkstoffen mit einem Kupfergehalt größer als 99,80 %

Diese Europäische Norm legt ein elektrolytisches Verfahren zur Bestimmung des Kupfergehaltes von
unlegierten Kupferwerkstoffen mit einem Kupfergehalt größer als 99,80 % (Massenanteil) fest, die als Gussstücke
und plastisch oder nicht plastisch geformte Produkte vorliegen.
Eventuell vorhandenes Silber wird mit abgeschieden und als Kupfer angegeben. Etwa die Hälfte des
vorhandenen Selens und Tellurs wird ebenfalls mit abgeschieden. Bismut, falls vorhanden, interferiert
ebenfalls.

Cuivre et alliages de cuivre - Détermination de la teneur en cuivre - Partie 2: Détermination par électrogravimétrie de la teneur en cuivre dans les matériaux ayant une teneur en cuivre supérieure à 99,80 %

La présente Norme européenne spécifie une méthode de détermination par électrogravimétrie de la teneur en
cuivre dans les matériaux en cuivre non alliés ayant une teneur en cuivre supérieure à 99,80 % (fraction en
masse), sous forme de produits non corroyés, corroyés et moulés.
Lorsque présent, l’argent se co-dépose et est pris en compte en tant que cuivre. Environ la moitié de la
quantité de sélénium et de tellure présents se co-dépose également. Lorsque présent, le bismuth interfère
aussi.

Baker in bakrove zlitine - Določevanje bakra - 2. del: Elektrolitsko ugotavljanje bakra v materialih z deležem bakra, večjim od 99,80 %

Ta evropski standard določa elektrolitsko metodo za ugotavljanje bakra v nelegiranih materialih iz bakra v obliki ulitkov, gnetenih in negnetenih izdelkov z deležem bakra, večjim od 99,80 % (masni delež). Če je srebro prisotno, se soodloži in zabeleži kot baker. Približno polovica prisotnega selena in telurja se soodloži. Če je prisoten bizmut, tudi ta moti analizo.

General Information

• Status: Published
• Public Enquiry End Date: 24-Sep-2011
• Publication Date: 25-May-2014
• ICS: 77.120.30 - Copper and copper alloys
• Technical Committee: INEK - Nonferrous metals
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 14-May-2014
• Due Date: 19-Jul-2014
• Completion Date: 26-May-2014
• Ref Project: EN 16117-2:2012 - Copper and copper alloys - Determination of copper content - Part 2: Electrolytic determination of copper in materials with copper content higher than 99,80 %

Overview

EN 16117-2:2012 (CEN) defines an electrolytic (electrogravimetric) method for determining the copper content of unalloyed copper materials with copper > 99.80 % (mass fraction). It covers dissolution of a 5.0 g test portion in a nitric/sulphuric acid mixture, electrolytic deposition of copper onto a platinum cathode, weighing of the deposit, and measurement of residual copper in the spent electrolyte (Annex A). The standard also notes known interferences: silver is co-deposited and reported as copper, about one-half of selenium and tellurium co-deposit, and bismuth interferes.

Key topics and requirements

• Scope: Unalloyed copper castings, wrought and unwrought products with Cu > 99.80 %.
• Sampling: Follow ISO 1811‑1 / ISO 1811‑2; test material as fine drillings, chips or millings (max 0.5 mm thickness).
• Test portion: Weigh (5.0 ± 0.001) g.
• Dissolution: Nitric + sulphuric acid mixture, controlled heating to ~80–90 °C and expulsion of nitrogen oxides; add sulphamic acid to stabilize.
• Electrolysis: Use a platinum (Winkler-type) gauze cathode and platinum-alloy spiral anode; typical current 1–3 A; electrolyse until deposition is essentially complete (normally < 10 h).
• Post-electrolysis handling: Rinse, alcohol wash (ethanol/methanol), dry at 110 °C for 3–5 min; weigh cathode to 0.1 mg to obtain deposited copper mass.
• Residual copper: Analyze spent electrolyte (FAAS described in Annex A or ICP-OES) - FAAS uses Cu lines at 324.8 nm or 327.4 nm.
• Calculation: Formula provided to compute copper mass fraction accounting for residual Cu in electrolyte.
• Precision: Interlaboratory data indicate representative repeatability r = 0.074 % and reproducibility R = 0.106 % within the narrow scope.

Applications and users

• Quality control and certification for high-purity copper producers and foundries.
• Metallurgical laboratories performing chemical analysis of copper content in raw materials, mill products and castings.
• Procurement, compliance and inspection teams requiring traceable copper assay methods for purity verification.
• Laboratories selecting between electrogravimetry and spectrometric verification (FAAS / ICP-OES) for residual copper.

Related standards

• EN 16117-1 - electrolytic determination for materials with Cu < 99.85 %.
• ISO 1811-1 / ISO 1811-2 - sampling and preparation of copper and copper alloys for chemical analysis.
• Annex A of EN 16117-2 - FAAS method for spent electrolyte residual copper.

Keywords: EN 16117-2:2012, electrolytic determination of copper, electrogravimetry, high-purity copper, platinum cathode, FAAS, copper content analysis, CEN.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kupfer und Kupferlegierungen - Bestimmung des Kupfergehaltes - Teil 2: Elektrolytische Bestimmung von Kupfer in Werkstoffen mit einem Kupfergehalt größer als 99,80 %Cuivre et alliages de cuivre - Détermination de la teneur en cuivre - Partie 2: Détermination par électrogravimétrie de la teneur en cuivre dans les matériaux ayant une teneur en cuivre supérieure à 99,80 %Copper and copper alloys - Determination of copper content - Part 2: Electrolytic determination of copper in materials with copper content higher than 99,80 %77.120.30Baker in bakrove zlitineCopper and copper alloysICS:Ta slovenski standard je istoveten z:EN 16117-2:2012SIST EN 16117-2:2014en,fr,de01-julij-2014SIST EN 16117-2:2014SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16117-2
November 2012 ICS 77.120.30 English Version
Copper and copper alloys - Determination of copper content - Part 2: Electrolytic determination of copper in materials with copper content higher than 99,80 %
Cuivre et alliages de cuivre - Détermination de la teneur en cuivre - Partie 2 : Détermination par électrogravimétrie du cuivre dans les matériaux ayant une teneur en cuivre supérieure à 99,80 %
Kupfer und Kupferlegierungen - Bestimmung des Kupfergehaltes - Teil 2: Elektrolytische Bestimmung von Kupfer in Werkstoffen mit einem Kupfergehalt größer als 99,80 % This European Standard was approved by CEN on 20 October 2012.
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-CENELEC 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-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, 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 FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
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B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16117-2:2012: ESIST EN 16117-2:2014

Spent electrolyte — Determination of residual copper — Flame atomic absorption spectrometric method (FAAS) .8Bibliography . 11 SIST EN 16117-2:2014
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