Norm

NEN-ISO 11707:2011 en

Magnesium en magnesiumlegeringen - Bepaling van lood en cadmium gehalte

52,53

Over deze norm

Status Definitief
Aantal pagina's 7
Commissie Non-ferro
Gepubliceerd op 01-09-2011
Taal Engels
This International Standard specifies wet analytical methods for lead and cadmium. There are two methods for the simultaneous determination of lead and cadmium in magnesium and its alloys. Method A uses a matrixmatching technique for unalloyed magnesium and its alloys by inductively coupled plasma/atomic emission spectrometry (ICP/AES) or flame atomic absorption spectrometry (FAAS). Method B uses an extraction method for magnesium alloys with pretreatment procedures. Generally, Method A is recommended; also, Method B is designated where the matrix-matching method cannot be adopted due to complicated preparation of the assay standard solutions or where the combination of solvent extraction and FAAS is useful for analysts. These methods are applicable to the determination of lead and cadmium in the ranges of mass fractions of 0,000 5 % to 0,04 % and 0,000 5 % to 0,07 %, respectively.

Details

ICS-code 77.120.20
Nederlandse titel Magnesium en magnesiumlegeringen - Bepaling van lood en cadmium gehalte
Engelse titel Magnesium and its alloys - Determination of lead and cadmium

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