EN 27627-5:1993

Hardmetals - Chemical analysis by flame atomic absorption spectrometry - Part 5: Determination of cobalt, iron, manganese, molybdenum, nickel, titanium and vanadium in contents from 0,5 to 2 % (m/m) (ISO 7627-5:1983)

General requirements concerning the field of application, principle, interfering elements, apparatus, sampling and test report are given in ISO 7627-1.Determination of element contents in high concentration by the atomic absorption spectrophotometry method yields a wider scattering of results than are obtainable by other methods.

Hartmetalle - Chemische Analyse durch Flammenatomabsorptionsspektrometrie - Teil 5: Bestimmung des Cobalt-, Eisen-, Mangan-, Molybdän-, Nickel-, Titan- und Vanadiumgehaltes von 0,5 bis 2 % (m/m) (ISO 7627-5:1983)

Métaux-durs - Analyse chimique par spectrométrie d'absorption atomique dans la flamme - Partie 5: Dosage du cobalt, du fer, du manganèse, du molybdène, du nickel, du titane et du vanadium à des teneurs comprises entre 0,5 et 2 % (m/m) (ISO 7627-5:1983)

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, du molybdène, du nickel, du titane et du vanadium dans les métaux-durs, à des teneurs en chacun de ces éléments comprises entre 0,5 et 2 % (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.  
NOTE -- La méthode de dosage de ces éléments à forte concentration par spectrométrie d'absorption atomique donne une dispersion des résultats plus forte que d'autres méthodes (voir ISO 3909, 4501, 4503 et 4883). Voir aussi 4.2.

Hardmetals - Chemical analysis by flame atomic absorption spectrometry - Part 5: Determination of cobalt, iron, manganese, molybdenum, nickel, titanium and vanadium in contents from 0,5 to 2 % (m/m) (ISO 7627-5:1983)

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 27627-5:2000 - Hardmetals - Chemical analysis by flame atomic absorption spectrometry - Part 5: Determination of cobalt, iron, manganese, molybdenum, nickel, titanium and vanadium in contents from 0,5 to 2 % (m/m) (ISO 7627-5:1983)

Overview

EN 27627-5:1993 (identical to ISO 7627-5:1983) defines a standardized procedure for the chemical analysis of hardmetals by flame atomic absorption spectrometry (FAAS). It covers the determination of cobalt, iron, manganese, molybdenum, nickel, titanium and vanadium in hardmetal samples when each element is present in the range 0.5 to 2 % (m/m). General requirements on scope, principle, interferences, apparatus, sampling and test reporting are given in ISO 7627-1.

Key topics and technical requirements

• Scope and limitation: Method is intended for element contents from 0.5 to 2 % (m/m). FAAS at high concentrations can show greater scatter than some alternative methods.
• Sample preparation:
  • Typical test portion: approximately 1 g, weighed to 0.001 g.
  • Dissolution: controlled addition of hydrofluoric acid (HF) and nitric acid (HNO3), heating until dissolved; addition of cesium chloride and ammonium fluoride to stabilize matrix.
  • Final volumetric dilution to 100 ml (with option to perform a 1:10 further dilution for more sensitive instruments).
• Calibration and measurement:
  • Prepare at least six calibration solutions with matrix matching the sample as closely as possible.
  • Use blank solutions and single-element hollow-cathode lamps; narrow spectral bandpass is mandatory.
  • Aspirate blanks, calibrants and test solutions sequentially; make at least two measurements per solution.
• Quality control and results:
  • Perform three independent determinations; deviations between them shall not exceed 0.1 times the element content (absolute).
  • Report the arithmetic mean of acceptable determinations and round according to the standard’s table.
• Safety note: Use extreme caution with HF and strong acids; follow manufacturer guidance for flame ignition/extinguishing.

Applications and users

This standard is primarily aimed at:

• Quality control and analytical laboratories in powder metallurgy and hardmetal (tungsten carbide/cobalt) manufacturing.
• Materials engineers and metallurgists monitoring binder and impurity levels.
• Third‑party testing labs performing standardized compositional certification.
• R&D groups comparing FAAS results with other methods (e.g., gravimetric or alternative spectrometric techniques).

Use cases include routine composition checks, incoming material inspection, process control and conformity testing where quantification of binder and alloying elements at the 0.5–2 % level is required.

Related standards

• ISO 7627-1 / EN 27627-1 - General requirements for FAAS analysis of hardmetals
• Alternative/compare methods: ISO 3909, ISO 4501, ISO 4593, ISO 4883 (noted as producing less scatter at high concentrations)

Keywords: EN 27627-5:1993, ISO 7627-5:1983, hardmetals, flame atomic absorption spectrometry, FAAS, cobalt analysis, iron, manganese, molybdenum, nickel, titanium, vanadium, chemical analysis, powder metallurgy.

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 5: Determination of cobalt, iron, manganese, molybdenum, nickel, titanium and vanadium in contents from 0,5 to 2 % (m/m) (ISO 7627-5:1983)Hartmetalle - Chemische Analyse durch Flammenatomabsorptionsspektrometrie - Teil 5: Bestimmung des Cobalt-, Eisen-, Mangan-, Molybdän-, Nickel-, Titan- und Vanadiumgehaltes von 0,5 bis 2 % (m/m) (ISO 7627-5:1983)Métaux-durs - Analyse chimique par spectrométrie d'absorption atomique dans la flamme - Partie 5: Dosage du cobalt, du fer, du manganese, du molybdene, du nickel, du titane et du vanadium a des teneurs comprises entre 0,5 et 2 % (m/m) (ISO 7627-5:1983)Hardmetals - Chemical analysis by flame atomic absorption spectrometry - Part 5: Determination of cobalt, iron, manganese, molybdenum, nickel, titanium and vanadium in contents from 0,5 to 2 % (m/m) (ISO 7627-5:1983)77.160Metalurgija prahovPowder metallurgy77.040.30Kemijska analiza kovinChemical analysis of metalsICS:Ta slovenski standard je istoveten z:EN 27627-5:1993SIST EN 27627-5:2000en01-december-2000SIST EN 27627-5:2000SLOVENSKI
STANDARD
International Standard 762715 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.MEXJ1YHAPOAHAR OPI-AHM3AL&lfi fl0 CTAH~APTM3A~MM*ORGANISATlON INTERNATIONALE DE NORMALISATION Hardmetals - Chemical analysis by flaine atomic absorption spectrometry - Part 5: Determination of Cobalt, iron, manganese, molybdenum, nickel, titanium and vanadium in contents from 0,5 to 2 % (mlm) M&aux-durs - Analyse chimique par spectrom&ie d’absorption atomique dans Ia flamme - Partie 5: Dosage du Cobalt, du fer, du manganese, du molybd&ne, du nickef, du titane et du vanadium & des teneurs comprises entre 0,5 et 2 % (Nm) First edition - 1983-10-15 UDC 669.018.25 : 643.422 Ref. No. ISO 7627/5-1983 (E) Descriptors : hardmetals, Chemical analysis, determination of content, Cobalt, iron, manganese, molybdenum, nickel, titanium, vanadium, atomic absorption spectrometry. Price hased on 2 pages SIST EN 27627-5:2000

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 7627/5 was developed by Technical Committee ISO/TC 119, Powder metatbrgy, 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. Brazil Italy Bulgaria Korea, Rep. of China Norway Czechoslovakia Romania Egypt, Arab Rep. of South Africa, Rep. of France Spain Sweden Switzerland United Kingdom USA USSR No member body expressed disapproval of the document. 0 International Organkation for Standardkation, 1983 Printed in Switzerland SIST EN 27627-5:2000

INTERNATIONAL STANDARD ISO 7627/5-1963 (E) Hardmetals - Chemical analysis by flame atomic absorption spectrometry - Part 5: Determination of Cobalt, iron, manganese, molybdenum, nickel, titanium and vanadium in contents from 0,5 to 2 % (4172) 1 Scope and field of application This part of ISO 7627 specifies the method to be used for the determination of Cobalt, iron, manganese, molybdenum, nicke& titanium and vanadium contents of hardmetals within the range 0,5 to 2 % (mlm) by flame atomic absorption spectrometry. General requirements concerning the field of application, prin- ciple, interfering elements, apparatus, sam.pling and test report are given in ISO 7627/1. NOTE - Determination of element contents in high concentration by the atomic absorption spectrophotometry method yields a wider scat- tering of results than are obtainable by other methods, i.e. ISO 3909, 4501, 4593 and 4883. See also clause 4.2. 2 Reference ISO 762711, Hardmetals - Chemical analysis b y flame atomic absorp tion spectrometry - Part 7 : General requiremen ts. 3 Reagents 3.1 Hydrofluoric acid, Q 1,12 g/ml. 3.2 Nitrit acid, Q 1,42 g/ml. 3.3 Ammonium fluoride, 0,l g/ml solution. 3.4 Caesium chloride, 0,Ol g/ml solution. 3.5 High-purity stock solutions, for calibration purposes for each element to be determined, containing 1,000 g of the element per litre. NOTE - This value is understood to establish a maximum limit of 1,000 5 g an
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