其原理是对通过液氯气化获得的已知体积的氯（约100毫升）进行取样。在1毫升饱和氯化钠溶液中用2%锌汞齐吸收氯。测量残余的不可冷凝气体，如H2、O2、N2、CO、CO2等。根据与总体积的差值计算氯的体积，参考100毫升蒸发样品。所使用的设备如图所示。列出了使用氯气的安全措施。

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.