Decontamination of materials / issued by the Ministry of Home Security (Air Raid Precautions Department).

Date:
1936
Catalogue details

Licence: Public Domain Mark

Credit: Decontamination of materials / issued by the Ministry of Home Security (Air Raid Precautions Department). Source: Wellcome Collection.

    8/74 (page 6)
    Bleaching Powder Concentration . Container Contamination Decontamination Facepisce Gas Non-persistent gas Persistent gas . Chloride of lime. The proportion of gas in a given volume of air. The’ “part: of the respirator containing the filter and the gas absorbent. The liquid or vapour remain- ing on an object or person as a result of exposure to gas (usually a persistent gas). A process intended to re- move the contaminating gas or to render it harm- less. The part of a _ respirator which covers the face. Includes any chemical sub- stance, solid, liquid or gas, used in war for its poison- ous or irritant effects on the human body. A gas which forms a cloud (not necessarily visible) immediately it is released and leaves no liquid con- tamination on the ground. A gas in liquid form which evaporates slowly and so continues to give off dangerous vapour for a long period.