SIST ISO 7530-7:1996

Oznaka standarda: SIST ISO 7530-7:1996
Koda projekta: 014305
Organizacija: SIST
Naslov (angleški): Nickel alloys -- Flame atomic absorption spectrometric analysis -- Part 7: Determination of aluminium content
Naslov (slovenski): Nikljeve zlitine - Plamenska atomska absorpcijska spektrometrična analiza - 7. del: Ugotavljanje deleža aluminija
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SIST ISO 7530-7:1996 angleški jezik Active SIST-A: 27.83 EUR
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Tehnični odbor: IFEK - Železne kovine
ICS: 77.120.40
Status: Objavljen
Objavljen: 01-Aug-1996
Refer. št. objave: Sporocila 1996-08-01
Referenčna oznaka: ISO 7530-7:1992
Področje projekta (angleško): Silicon content can be determined in the range of 0,2 % (m/m) to 1 % (m/m). The principle is dissolution of a test portion in acid, filtration and aspiration of the test solution into a nitrous oxide-acetylene flame of an atomic absorption spectrometer, combustion of the filter, volatilization of silica, fusion of the residue, dissolution of the melt in dilute acid, aspiration of this second solution into another such flame, measurement of the absorbance of the resonance line energy from the spectrum of aluminium and comparison with that of calibration solutions at 309,3 nm.

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