Norm

ISO 7529:2017 en

Nickel alloys - Determination of chromium content - Potentiometric titration method with ammonium iron(II) sulfate

31,57 38,20 Incl BTW

Over deze norm

Status Definitief
Aantal pagina's 5
Commissie Non-ferro
Gepubliceerd op 01-10-2017
Taal Engels
ISO 7529 specifies a potentiometric titration method for the determination of chromium content in nickel alloys which do not contain insoluble carbides and which have a vanadium content less than a mass fraction of 0,2 %. The method is applicable to chromium contents between a mass fraction of 5 % to a mass fraction of 22 %. Vanadium, which can be present as an impurity in the alloy, will give a positive bias interference. However, at a level of a mass fraction of 0,2 %, this bias is equivalent to a mass fraction of 0,068 % chromium, which is about half the reproducibility of the method.

Details

ICS-code 77.120.40
Engelse titel Nickel alloys - Determination of chromium content - Potentiometric titration method with ammonium iron(II) sulfate

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