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delSRPS ISO 6382:2015

General method for determination of silicon content — Reduced molybdosilicate spectrophotometric method

General information

30.98    

ISS

H047

International Standard

71.040.40  

English  

Napušten projekat.

Scope

Specifies a method based on the depolymerization of any polymerized silica by treatment with sodium fluoride in the presence of hydrochloride acid resulting in the formation of the oxidized molycdosilicate, followed by the selective reduction of this complex in the presence of oxalic acid and in a sulphuric acid medium, and spectrophotometric measurement of the blue-coloured complex at the wavelength corresponding to maximum absorption (about 800 nm).

Life cycle

NOW

ABANDON
delSRPS ISO 6382:2015
30.98 Project deleted

Related project

Adopted from ISO 6382:1981