Norm

ISO 11436:1993 en

Nickel and nickel alloys - Determination of total boron content - Curcumin molecular absorption spectrometric method

48,19

Over deze norm

Status Definitief
Aantal pagina's 8
Commissie Metalen algemeen
Gepubliceerd op 05-08-1993
Taal Engels
The principle of the method specified is dissolving a test portion in hydrochloric and nitric acids, decomposing resistant boron compounds (e.g. boron nitrides) by fuming the sample solution with phosphoric and sulfuric acids at not less than 290 °C, forming the boron curcumin complex in a buffered acetic acid and sulfuric acid medium, and measuring the absorbance of the test solution in a molecular absorption spectrometer at 543 nm. Applies to nickel and nickel alloys having a total boron content in the range of 4 g/t to 240 g/t.

Details

ICS-code 77.120.40
Nederlandse titel Nickel and nickel alloys - Determination of total boron content - Curcumin molecular absorption spectrometric method
Engelse titel Nickel and nickel alloys - Determination of total boron content - Curcumin molecular absorption spectrometric method

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