EN 27627-2:1993

Hardmetals - Chemical analysis by flame atomic absorption spectrometry - Part 2: Determination of calcium, potassium, magnesium and sodium in contents from 0,001 to 0,02 % (m/m) (ISO 7627-2:1983)

General requirements concerning the field of application, principle, interfering elements,aparatus, sampling and test report are given in ISO 7627-1. In low concentrations the determination of these elements is very critical.

Hartmetalle - Chemische Analyse durch Flammenatomabsorptionsspektrometrie - Teil 2: Bestimmung des Calcium-, Kalium-, Magnesium- und Natriumgehaltes von 0,001 bis 0,02 % (m/m) (ISO 7627-2:1983)

Métaux-durs - Analyse chimique par spectrométrie d'absorption atomique dans la flamme - Partie 2: Dosage du calcium, du potassium, du magnésium et du sodium à des teneurs comprises entre 0,001 et 0,02 % (m/m) (ISO 7627-2:1983)

La présente partie de l'ISO 7627 spécifie la méthode à utiliser pour le dosage par spectrométrie d'absorption atomique dans la flamme du calcium, du potassium, du magnésium et du sodium dans les métaux-durs, à des teneurs en chacun de ces éléments comprises entre 0,001 et 0,02 % (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 est très critique aux faibles concentrations. On veillera avec soin à éviter toute pollution par l'atmosphère ou les réactifs utilisés.

Hardmetals - Chemical analysis by flame atomic absorption spectrometry - Part 2: Determination of calcium, potassium, magnesium and sodium in contents from 0,001 to 0,02 % (m/m) (ISO 7627-2:1983)

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 27627-2:2000 - Hardmetals - Chemical analysis by flame atomic absorption spectrometry - Part 2: Determination of calcium, potassium, magnesium and sodium in contents from 0,001 to 0,02 % (m/m) (ISO 7627-2:1983)

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 2: Determination of calcium, potassium, magnesium and sodium in contents from 0,001 to 0,02 % (m/m) (ISO 7627-2:1983)Hartmetalle - Chemische Analyse durch Flammenatomabsorptionsspektrometrie - Teil 2: Bestimmung des Calcium-, Kalium-, Magnesium- und Natriumgehaltes von 0,001 bis 0,02 % (m/m) (ISO 7627-2:1983)Métaux-durs - Analyse chimique par spectrométrie d'absorption atomique dans la flamme - Partie 2: Dosage du calcium, du potassium, du magnésium et du sodium a des teneurs comprises entre 0,001 et 0,02 % (m/m) (ISO 7627-2:1983)Hardmetals - Chemical analysis by flame atomic absorption spectrometry - Part 2: Determination of calcium, potassium, magnesium and sodium in contents from 0,001 to 0,02 % (m/m) (ISO 7627-2:1983)77.160Metalurgija prahovPowder metallurgy77.040.30Kemijska analiza kovinChemical analysis of metalsICS:Ta slovenski standard je istoveten z:EN 27627-2:1993SIST EN 27627-2:2000en01-december-2000SIST EN 27627-2:2000SLOVENSKI
STANDARD
International Standard 7627/2 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.MEXI(JIYHAPOJ1HAR OPrAHM3At.&lR t-l0 CTAHAAPTM3AUMM*ORGANlSATiON INTERNATIONALE DE NORMALISATION Hardmetals - Chemical analysis by .flame atomic absorption spectrometry - Part 2: Determination of Calcium, potassium, magnesium and sodium in contents from 0,001 to 0,02 % (mlm) Mhtaux-durs - Analyse chimique par spectrometrie d’absorp tion atomique dans Ia flamme - Partie 2: Dosage du Calcium, du potassium, du magnhium et du sodium & des teneurs comprises entre 0,001 et Cl,02 % lmlm) First edition - 1983-10-15 UDC 669.018.25 : 643.422 Ref. No. ISO 7627/2-1983 (E) Descriptors : hardmetals, Chemical analysis, determination of content, Calcium, potassium, magnesium, sodium, atomic absorption spectrometry. Price based on 2 pages SIST EN 27627-2:2000

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 7627/2 was developed by Technical Committee ISO/TC 119, Powder metallurgy, 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 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 Organkation for Standardkation, 1983 Printed in Switzerland SIST EN 27627-2:2000

INTERNATIONAL STANDARD ISO 7627/2-1983 (E) Hardmetals - Chemical analysis by flame atomic absorption spectrometry - Part 2: Determination of Calcium, potassium, magnesium and sodium in contents from 0,001 to 0,02 % (mlm) 1 Scope and field of application This part of ISO 7627 specifies the method to be used for the determination of Calcium, potassium, magnesium and sodium contents of hardmetals within the range 0,001 to 0,02 % (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. NOTE - In low concentrations, the determination of these elements is very critical. Every care should be taken to avoid contamination from atmosphere and reagents. 2 Reference ISO 762711, Hardmetals - Chemical analysis b y flame a tomic absorp tion spectrometry - Part 1: General requiremen ts. 3 Reagents 4 Procedure 4.1 Test Portion Weigh, to the nearest 0,001 g, approximately 1 g of the test Sample. Transfer it to a 100 ml polytetrafluorethylene beaker or a beaker of other suitable material. Cover the beaker. 4;2 Dissolution of the test Portion Add 10 ml of water, 5 ml of the hydrofluoric a
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