EN 27627-3:1993

Hardmetals - Chemical analysis by flame atomic absorption spectrometry - Part 3: Determination of cobalt, iron, manganese and nickel in contents from 0,01 to 0,5 % (m/m) (ISO 7627-3:1983)

General requirements concerning the field of application, principle, interfering elements,aparatus, sampling and test report are given in ISO 7627-1.

Hartmetalle - Chemische Analyse durch Flammenatomabsorptionsspektrometrie - Teil 3: Bestimmung des Cobalt-, Eisen-, Mangan- und Nickelgehaltes von 0,01 bis 0,5 % (m/m) (ISO 7627-3:1983)

Métaux-durs - Analyse chimique par spectrométrie d'absorption atomique dans la flamme - Partie 3: Dosage du cobalt, du fer, du manganèse et du nickel à des teneurs comprises entre 0,01 et 0,5 % (m/m) (ISO 7627-3:1983)

La présente partie de l'ISO 7627 spécifie la méthode à utiliser pour le dosage par spectrométrie d'absorption atomique dans la flamme du cobalt, du fer, du manganèse et du nickel dans les métaux-durs, à des teneurs en chacun de ces éléments comprises entre 0,01 et 0,5 % (m/m). Les prescriptions générales concernant le domaine d'application, le principe, les interférences, l'appareillage, l'échantillonnage et le procès-verbal d'essai figurent dans l'ISO 7627/1.

Hardmetals - Chemical analysis by flame atomic absorption spectrometry - Part 3: Determination of cobalt, iron, manganese and nickel in contents from 0,01 to 0,5 % (m/m) (ISO 7627-3:1983)

General Information

• Status: Published
• Publication Date: 06-Apr-1993
• Withdrawal Date: 30-Oct-1993
• ICS: 77.040.30 - Chemical analysis of metals
• ICS: 77.160 - Powder metallurgy
• Technical Committee: CEN/SS M11 - Powder metallurgy
• Drafting Committee: CEN/SS M11 - Powder metallurgy
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 13-Oct-1999
• Completion Date: 13-Oct-1999
• Ref Project: SIST EN 27627-3:2000 - Hardmetals - Chemical analysis by flame atomic absorption spectrometry - Part 3: Determination of cobalt, iron, manganese and nickel in contents from 0,01 to 0,5 % (m/m) (ISO 7627-3:1983)

Overview

EN 27627-3:1993 (identical to ISO 7627-3:1983) specifies a flame atomic absorption spectrometry (AAS) method for the chemical analysis of hardmetals. It covers the determination of cobalt (Co), iron (Fe), manganese (Mn) and nickel (Ni) in hardmetal samples in the range 0.01 to 0.5 % (m/m). General requirements on field of application, principle, interferences, apparatus, sampling and reporting are given in ISO 7627‑1.

Key Topics and Requirements

• Scope: Quantitative determination of Co, Fe, Mn and Ni in hardmetals by flame AAS for contents 0.01–0.5% (m/m).
• Sample preparation: Typical test portion ≈ 1 g; dissolution by adding water, hydrofluoric acid then nitric acid with gentle heating until complete dissolution; addition of cesium chloride and ammonium fluoride; transfer to a polypropylene or PTFE container and dilute to prescribed volume (100 mL or 1 000 mL depending on sensitivity).
• Calibration and blanks: Prepare at least six matrix‑matched calibration solutions and one or more blanks. Use high‑purity stock solutions for calibration according to the standard.
• Instrument setup: Optimize spectrometer at element‑specific wavelengths and operating parameters (the standard provides recommended wavelengths and oxidant - e.g., N2O - and guidance on sensitivity and spectral bandpass).
• Measurements: Aspirate blank, calibration and test solutions consecutively; perform at least two measurements per solution; remove burner deposits to avoid sensitivity loss.
• Calculation and reporting: Convert absorbance (blank‑corrected) to mg/L using the calibration curve; calculate % m/m using dilution volume and test portion mass. Permissible deviation between three independent determinations: not to exceed 0.2 × element content (absolute). Report results rounded according to specified rules; if <0.01% report as “<0.01% (m/m)”.
• Safety note: Follow instrument manufacturer recommendations for flame ignition/extinguishing and safe handling of HF and other reagents.

Applications and Users

• Quality control and chemical laboratory testing in hardmetal and cemented carbide production
• Metallurgical and powder‑metallurgy laboratories performing elemental analysis of finished parts and feedstock
• Contract testing laboratories verifying trace levels of Co, Fe, Mn and Ni for specification compliance
• R&D groups developing hardmetal formulations and needing reproducible, standardized trace-element measurement procedures

Related Standards

• ISO 7627‑1 / EN 27627‑1 - general requirements for chemical analysis of hardmetals by flame AAS (field of application, interferences, apparatus, sampling, test report)
• Relevant ISO/CEN standards on atomic absorption spectrometry and laboratory quality procedures

Keywords: EN 27627-3, ISO 7627-3, hardmetals, flame atomic absorption spectrometry, AAS, cobalt determination, iron determination, manganese, nickel, powder metallurgy, metal analysis, quality control.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Hardmetals - Chemical analysis by flame atomic absorption spectrometry - Part 3: Determination of cobalt, iron, manganese and nickel in contents from 0,01 to 0,5 % (m/m) (ISO 7627-3:1983)Hartmetalle - Chemische Analyse durch Flammenatomabsorptionsspektrometrie - Teil 3: Bestimmung des Cobalt-, Eisen-, Mangan- und Nickelgehaltes von 0,01 bis 0,5 % (m/m) (ISO 7627-3:1983)Métaux-durs - Analyse chimique par spectrométrie d'absorption atomique dans la flamme - Partie 3: Dosage du cobalt, du fer, du manganese et du nickel a des teneurs comprises entre 0,01 et 0,5 % (m/m) (ISO 7627-3:1983)Hardmetals - Chemical analysis by flame atomic absorption spectrometry - Part 3: Determination of cobalt, iron, manganese and nickel in contents from 0,01 to 0,5 % (m/m) (ISO 7627-3:1983)77.160Metalurgija prahovPowder metallurgy77.040.30Kemijska analiza kovinChemical analysis of metalsICS:Ta slovenski standard je istoveten z:EN 27627-3:1993SIST EN 27627-3:2000en01-december-2000SIST EN 27627-3:2000SLOVENSKI
STANDARD
Internati nal Standard 7627/3 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.MEIKI(nYHAPOC[HAR OPTAHM3AL&‘lR l-IO CTAH~APTM3AlJMM*ORGANISATlON INTERNATIONALE DE NORMALISATION Hardmetals - Chemical analysis by flame atomic absorption spectrometry - Part 3: Determination of Cobalt, iron, manganese and nicke1 in contents from 0,Ol to 0,5 % (mlm) M&taux-durs - Analyse chimique par spectrometrie d’absorption atomique dans Ia flamme - Partie 3: Dosage du Cobalt, du fer, du manganese et du nicke1 & des teneurs comprises entre O,OI et 0,5 % Hm) First edition - 1983-10-15 UDC 669.018.25 : 643.422 Ref. No. ISO 7627/3-1983 (E) Descriptors : hardmetals, Chemical analysis, determination of content, Cobalt, iron, manganese, nickel, atomic absorption spectrometry. Price based on 2 pages SIST EN 27627-3:2000

Foreword ISO (the International Organization for Standardization) is a worldwide federation of national Standards bodies (ISO member bodies). The work of developing International Standards is carried out through ISO technical committees. Every member body interested in a subject for which a technical committee has been authorized has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISO Council. International Standard ISO 7627/3 was developed by Technical Committee ISO/TC 119, Powder rnetallurgy, and was circulated to the member bodies in August 1982. lt has been approved by the member bodies of the following countries: Austria Germany, F.R. grazil Italy Bulgaria Korea, Rep. of China Norway Czechoslovakia Poland Egypt, Arab Rep. of Romania France South Africa, Rep. of Spain Sweden Switzerland United Kingdom USA USSR No member body expressed disapproval of the document. 0 International Orgahization for Standardkation, 1983 Printed in Switzerland SIST EN 27627-3:2000

INTERNATIONAL STANDARD ISO 7627/3-1983 (E) Hardmetals - Chemical analysis by flame atomic absorption spectrometry - Part 3: Determination of Cobalt, iron, nianganese and nicke1 in contents from 0,Ol to 0,5 % (mlm) 1 Scope and field of application This part of ISO 7627 specifies the method to be used for the determination of Cobalt, iron, manganese and nicke1 contents of hardmetals within the range 0,Ol to 0,5 % (mlm) by flame atomic absorption spectrometry. General requirements concerning the field of application, prin- ciple, interfering elements, apparatus, sampling and test report are given in ISO 7627/1. 4.2 Dissolution of the test Portion Add 10 ml of water, 5 ml of the hydrofluoric acid (3.1). and then 5 ml of the nitric acid (3.21, drop by drop, to the beaker containing the test Portion (4.1) and heat gently until the test Portion is completely dissolved. Add 10 ml of the caesium chloride Solution (3.4) and 10 ml of the ammonium fluoride Solution (3.3). Then transfer the Solution totally to a 100 ml polypropylene one-mark volumetric flask and dilute to the mark. 2 Reference 4.3 Dilution volume ISO 762711, Hardmetals - Chemical analysis b y flame atomic absorp tion spectrometry - Part 7 : General requiremen ts. Prepare the relevant dilution volume for the
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