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Glavni meni

ISO 7529:2017

Nickel alloys — Determination of chromium content — Potentiometric titration method with ammonium iron(II) sulfate
27. 10. 2017.

Опште информације

90.93     16. 5. 2023.

ISO

ISO/TC 155

Međunarodni standard

77.120.40  

engleski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

ISO 7529:2017 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 % and 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.

Životni ciklus

PRETHODNO

POVUČEN
ISO 7529:1989

TRENUTNO

OBJAVLJEN
ISO 7529:2017
90.93 Odluka o potvrđivanju standarda
16. 5. 2023.