EN 24943:1990

Chemical analysis of ferrous metal - Determination of copper content - Flame atomic absorption spectrometric method (ISO 4943:1985)

The method is applicable to copper contents between 0.004 % (m/m) and 0.5 % (m/m). Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report. Annex A gives additional information on the international co-operative tests. Annex B includes the graphical representation of precision data.

Chemische Analyse des Eisen- und Stahlwerkstoffes - Ermittlung des Kupfergehalts - Flammenatomabsorptionsspektrometrisches Verfahren (ISO 4943:1985)

Verstaendigung und Kommunikation. Qualitaet.

Analyse chimique des matériaux sidérurgiques - Détermination de la teneur en cuivre - Méthode par spectrométrie d'absorption atomique dans la flamme (ISO 4943:1985)

La présente Norme internationale spécifie une méthode de dosage par spectrométrie d'absorption atomique dans la flamme, du cuivre dans les aciers et fontes. La méthode est applicable aux teneurs en cuivre comprises entre 0,004 et 0,5 % (m/m).

Kemična analiza železovih zlitin - Določevanje bakra - Plamenska atomska absorpcijska spektrometrična metoda (ISO 4943:1985)

General Information

• Status: Withdrawn
• Publication Date: 29-Mar-1990
• Withdrawal Date: 20-Sep-2022
• ICS: 77.040.30 - Chemical analysis of metals
• Technical Committee: ECISS/TC 102 - Methods of chemical analysis for iron and steel
• Drafting Committee: ECISS/TC 102/WG 3 - Determination of environmentally sensitive elements in steel
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 21-Sep-2022
• Mandate: M/BC/CEN/87/15 - ECISS - 2nd programme
• Ref Project: SIST EN 24943:1997 - Chemical analysis of ferrous metal - Determination of copper content - Flame atomic absorption spectrometric method (ISO 4943:1985)

Relations

• Replaced By: EN ISO 4943:2022 - Steel and cast iron - Determination of copper content - Flame atomic absorption spectrometric method (ISO 4943:2022)
• Effective Date: 06-Mar-2019
• Corrected By: EN 24943:1990/AC:1991 - Steel and cast iron - Determination of copper content - Flame atomic absorption spectrometric method (ISO 4943:1985)
• Effective Date: 22-Dec-2008

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 24943:1997
01-december-1997
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DEVRUSFLMVNDVSHNWURPHWULþQDPHWRGD,62
Chemical analysis of ferrous metal - Determination of copper content - Flame atomic
absorption spectrometric method (ISO 4943:1985)
Chemische Analyse des Eisen- und Stahlwerkstoffes - Ermittlung des Kupfergehalts -
Flammenatomabsorptionsspektrometrisches Verfahren (ISO 4943:1985)
Analyse chimique des matériaux sidérurgiques - Détermination de la teneur en cuivre -
Méthode par spectrométrie d'absorption atomique dans la flamme (ISO 4943:1985)
Ta slovenski standard je istoveten z: EN 24943:1990
ICS:
77.040.30 Kemijska analiza kovin Chemical analysis of metals
SIST EN 24943:1997 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 24943:1997

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SIST EN 24943:1997

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SIST EN 24943:1997

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SIST EN 24943:1997
International Standard
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.ME)I(JJYHAPOfiHAR OPrAHl’l3AlJMfl fl0 CTAHAAPTM3AUMM.ORGANlSATION INTERNATIONALE DE NORMALISATION
- Determination of topper content -
Steel and cast iron
Flame atomic absorption spectrometric method
- Dosage du cuivre - M&hode par spectrom&rie d’absorption atomique dans Ia flamme
Aciers et fon tes
First edition - 1985-12-15
Ref. No. ISO 4943-1985 (E)
UDC 669.13/14: 543.422 : 546.56
Descriptors : steels, cast iron, Chemical analysis, determination of content, topper, atomic absorption method.
Price based on 6 pages

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SIST EN 24943:1997
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of
national Standards bodies (ISO member bodies). The work of preparing International
Standards is normally carried out through ISO technical committees. Esch member
body interested in a subject for which a technical committee has been established has
the right to be represented on that committee. International organizations, govern-
mental and non-governmental, in liaison with ISO, also take patt 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. They are approved in accordance with ISO procedures requiring at
least 75 % approval by the member bodies voting.
International Standard ISO 4943 was prepared by Technical Committee ISO/TC 17,
S teel.
Users should note that all International Standards undergo revision from time to time
and that any reference made herein to any other International Standard implies its
latest edition, unless otherwise stated.
0 International Organkation for Standardkation, 1985 l
Printed in Switzerland

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SIST EN 24943:1997
ISO 49434985 (E)
INTERNATIONAL STANDARD
- Determination of topper content -
Steel and cast iron
Flame atomic absorption spectrometric method
4.3 Hydrochlorit acid-nitric acid-perchloric acid
Scope and field of application
1
mixture.
This International Standard specifies a method for the deter-
Mix 20 ml of hydrochloric acid (Q about 1,19 g/ml) with 55 ml
mination of topper in steel and cast iron by means of flame
of nitric acid (Q about 140 g/ml) and 75 ml of perchloric acid
atomic absorption spectrometry.
(Q about 154 g/mlL
The method is applicable to topper contents in the range 0,004
NOTE - Perchlorit acid (Q about 1,67 g/ml) may also be used. 100 ml
to 0,5 % (mlm).
of perchloric acid (g about 1,54 g/ml) is equivalent to 79 ml of per-
chloric acid (Q about 1,67 g/ml).
2 Reference
4.4 Copper, Standard Solution.
ISO/R 377, Selection and preparation of samples and test
pieces for wrought steel.
4.4.1 Stock solution, corresponding to 1 g of Cu per litre.
Weigh, to the nearest 0,000 1 g, 1,000 0 g of high purity
3 Principle
topper [> 99,95 % Hrn) Cu].
Dissolution of a test Portion in a mixture of hydrochloric, nitric
Transfer to a 400 ml beaker and dissolve in 25 ml of nitric acid
and perchloric acids.
(Q about 140 g/ml, diluted 1 + 4). Cover with a watch-glass.
When dissolution is complete, evaporate on a water-bath until
Spraying of the Solution into an air-acetylene flame. Spec-
the onset of crystallization. Dissolve the residue in water, cool,
trometric measurement of the atomic absorption of the
transfer to a 1 000 ml one-mark volumetric flask, dilute to the
324,7 nm spectral Iine emitted by a topper hollow cathode
mark and mix.
lamp.
4.4.2 Standard Solution, corresponding to 20 mg of Cu per
litre.
4 Reagents
Transfer 20,O ml of the stock Solution (4.4.1) into a 1 000 ml
...