ISO 5938:1979
Cryolite, natural and artificial, and aluminium fluoride for industrial use; Determination of sulphur content; X-ray fluorescence spectrometric method

Standard No.

ISO 5938:1979

Release Date

1979

Published By

International Organization for Standardization (ISO)

Latest

ISO 5938:1979

Scope

Covers a method, the orinciple of which consists in preparing tablets from a mixture of the test portion and a binder and measuring the intensity of the K line emitted by the sulphur. The measured intensity is then compared with the intensity of emission of standard tablets of known sulphur content. The method is applicable to products having sulphur contents between 0,01 and 2 % (m/m).

ISO 5938:1979 history

• 1979 ISO 5938:1979 Cryolite, natural and artificial, and aluminium fluoride for industrial use; Determination of sulphur content; X-ray fluorescence spectrometric method