Reference number
ISO 2120:1972
ISO 2120:1972
© ISO 2025
International Standard
ISO 2120:1972
Liquid chlorine for industrial use — Determination of the content of chlorine by volume in the vaporized product
Edition 1
1972-06
1972-06
ISO 2120:1972
6913
Published
(Edition 1, 1972)
This publication was last reviewed and confirmed in 2023.
Therefore this version remains current.
Abstract
The principle consists in sampling of a known volume of chlorine (about 100 ml) obtained by gasification of liquid chlorine. Absorption of the chlorine by a 2% zinc amalgam in the presence of 1 ml of saturated sodium chlorine solution. Measurement of the residual, non-condensable gases such as H2, O2, N2, CO, CO2, etc. Calculation of the volume of chlorine from the difference from total volume, refereed to 100 ml of vaporized sample. The apparatus used is shown diagrammatically in the figure. The safety measures for working with chlorine are listed.