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ISO 6382:1981

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

Nov 1, 1981
95.99   Withdrawal of Standard   Oct 3, 2016

General information

95.99     Oct 3, 2016

ISO

ISO/TC 47

International Standard

71.040.40  

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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

WITHDRAWN
ISO 6382:1981
95.99 Withdrawal of Standard
Oct 3, 2016

National adoptions

delSRPS ISO 6382:2015  
ISS

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

30.98   Project deleted

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