Copper and copper alloys - Determination of antimony content - Part 1: Spectrophotometric method

This part of this European Standard specifies a Rhodamine B spectrophotometric method for the determination of the antimony content of copper and copper alloys in the form of unwrought, wrought and cast products.
The method is applicable to products having antimony mass fractions in the range between 0,001 % and 0,1 %, or greater by appropriate modification of the mass of the test portion, the volume of the test portion solution to be taken for the extraction and the cell path length.

Kupfer und Kupferlegierungen - Bestimmung des Antimongehaltes - Teil 1: Spektrophotometrisches Verfahren

Dieser Teil dieser Europäischen Norm legt ein spektrophotometrisches Verfahren mit Rhodamin B für die Bestimmung
des Antimongehaltes in Kupfer und Kupferlegierungen fest, die als Gussstücke oder als plastisch oder
nicht plastisch geformte Produkte vorliegen.
Das Verfahren ist geeignet für Produkte mit Antimon-Massenanteilen zwischen 0,001 % und 0,1 % oder größer,
wenn entsprechende Änderungen der Probenmasse, des Volumens der Probenlösung für die Extraktion und der
Küvettenlänge vorgenommen werden.

Cuivre et alliages de cuivre - Dosage de l'antimoine - Partie 1 : Méthode spectrophotométrique

Cette partie de la présente Norme européenne spécifie une méthode spectrophotométrique à la rhodamine B pour le dosage de l’antimoine dans le cuivre et les alliages de cuivre sous la forme de produits non corroyés, corroyés et coulés.
La méthode s’applique aux produits ayant des teneurs en antimoine comprises entre 0,001 % et 0,1 %, ou supérieures en modifiant de manière appropriée la masse de la prise d’essai, le volume de solution pour essai à prélever pour l’extraction et la longueur du parcours optique de la cuve.

Baker in bakrove zlitine – Določevanje antimona – 1. del: Spektrometrijska metoda

General Information

Status
Published
Publication Date
20-Jun-2006
Withdrawal Date
30-Dec-2006
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
18-Apr-2023
Completion Date
26-Nov-2025
Ref Project
SIST EN 14937-1:2006 - Copper and copper alloys - Determination of antimony content - Part 1: Spectrophotometric method

Overview

EN 14937-1:2006 - published by CEN - specifies a Rhodamine B spectrophotometric method for the determination of antimony content in copper and copper alloys (unwrought, wrought and cast products). The method is intended for antimony mass fractions nominally between 0.001 % and 0.1 %, with straightforward adjustments (test portion mass, aliquot volume, cell path length) to cover higher concentrations. The procedure is based on extraction of pentavalent antimony into isopropyl ether and spectrophotometric measurement of the chloro‑antimonate–Rhodamine B complex.

Key topics

  • Scope and applicability: Antimony determination in copper and copper alloys (drillings, chips or millings ≤ 0.5 mm thickness), sampling per ISO 1811-1 / ISO 1811-2.
  • Analytical principle: Conversion to pentavalent Sb, extraction into isopropyl ether and formation of the chloro‑antimonate–Rhodamine B colored complex for spectrophotometric measurement (~550 nm).
  • Reagents and materials: Analytical‑grade reagents including isopropyl ether, hydrochloric acid solutions, hydrogen peroxide, cerium(IV) sulfate (oxidant), hydroxylammonium chloride (reducing agent), and Rhodamine B dye. Standard antimony solutions for calibration are defined.
  • Apparatus: Ordinary laboratory equipment, refrigerator (for low‑temperature steps), and a spectrophotometer with suitable cell path length.
  • Procedure essentials: Test portion dissolution, oxidation/decomposition steps, selective extraction, phase washing, addition of Rhodamine B and immediate absorbance measurement. Includes blank and check tests and calibration using standards prepared in copper matrix.
  • Quality and reporting: Method validation data (repeatability/reproducibility from interlaboratory study), blank correction, calculation of antimony mass fraction using the measured Sb in the aliquot and the test portion mass, and required test report contents.

Applications

  • Quality control and acceptance testing in copper metallurgy, alloy production and casting.
  • Analytical laboratories performing composition verification of copper alloys for electrical, plumbing, and industrial applications.
  • Material inspection for compliance with product specifications and regulatory limits for antimony.
  • Research and development where trace antimony levels need routine, cost‑effective assessment without instrumental techniques like FAAS or ICP.

Related standards

  • EN 14937-2: Determination of antimony by FAAS method (complements this spectrophotometric procedure).
  • ISO 1811‑1 / ISO 1811‑2: Sampling and preparation of copper and copper alloy test samples.
  • ISO 5725 series: Accuracy, repeatability and reproducibility principles used in the method validation.
  • ISO 5956: Related Rhodamine B spectrometric method references.

Keywords: EN 14937-1:2006, copper and copper alloys, antimony determination, Rhodamine B spectrophotometric method, spectrophotometric analysis, analytical method, sampling, quality control.

Frequently Asked Questions

EN 14937-1:2006 is a standard published by the European Committee for Standardization (CEN). Its full title is "Copper and copper alloys - Determination of antimony content - Part 1: Spectrophotometric method". This standard covers: This part of this European Standard specifies a Rhodamine B spectrophotometric method for the determination of the antimony content of copper and copper alloys in the form of unwrought, wrought and cast products. The method is applicable to products having antimony mass fractions in the range between 0,001 % and 0,1 %, or greater by appropriate modification of the mass of the test portion, the volume of the test portion solution to be taken for the extraction and the cell path length.

This part of this European Standard specifies a Rhodamine B spectrophotometric method for the determination of the antimony content of copper and copper alloys in the form of unwrought, wrought and cast products. The method is applicable to products having antimony mass fractions in the range between 0,001 % and 0,1 %, or greater by appropriate modification of the mass of the test portion, the volume of the test portion solution to be taken for the extraction and the cell path length.

EN 14937-1:2006 is classified under the following ICS (International Classification for Standards) categories: 77.120.30 - Copper and copper alloys. The ICS classification helps identify the subject area and facilitates finding related standards.

You can purchase EN 14937-1:2006 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Copper and copper alloys - Determination of antimony content - Part 1: Spectrophotometric methodCuivre et alliages de cuivre - Dosage de l'antimoine - Partie 1 : Méthode spectrophotométriqueKupfer und Kupferlegierungen - Bestimmung des Antimongehaltes - Teil 1: Spektrophotometrisches VerfahrenTa slovenski standard je istoveten z:EN 14937-1:2006SIST EN 14937-1:2006en77.120.30ICS:SLOVENSKI
STANDARDSIST EN 14937-1:200601-september-2006

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14937-1June 2006ICS 77.120.30 English VersionCopper and copper alloys - Determination of antimony content -Part 1: Spectrophotometric methodCuivre et alliages de cuivre - Dosage de l'antimoine - Partie1 : Méthode spectrophotométriqueKupfer und Kupferlegierungen - Bestimmung desAntimongehaltes - Teil 1: SpektrophotometrischesVerfahrenThis European Standard was approved by CEN on 15 May 2006.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 Central Secretariat 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 Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, 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© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14937-1:2006: E
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

Loading comments...