Defence against gas : 1927 : Provisional / by command of the Army Council ; the War Office, 17th June, 1927.
- Date:
- 1927
Licence: Public Domain Mark
Credit: Defence against gas : 1927 : Provisional / by command of the Army Council ; the War Office, 17th June, 1927. Source: Wellcome Collection.
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![I 3. Page6 ‘‘Care hot, or tk flame, ei lachryma and substitute :-— ee a8 ““While breathing heavily the facepiece edge may lift Amdt. 1 nomentarily from the face during expiration ”’, March, 19283 10. Gas chamber test.—1t 1s amucuit to guarantee the com- pleteness of the protection afforded by a. facepiece against gas by visual examination alone. The fit of the facepiece should therefore be tested in actual gas. The best agent is a combined tear gas and nose and throat irritant, so that leaks may be detected either by the action on the eyes or, in the case of leaks in the lower portion of the facepiece, by the effect on the nose and throat. The substance used in the present lachrymatory capsule fulfils these conditions. This test should be carried out in a gas chamber under the supervision of a qualified officer. 5. Page 62, Appendix III, paragraph 11 (as amended by Amendment No. I, notified in Army Order 40 of 1928).— Delete and substitute :— ‘“]1. Any reasonably air-tight room or enclosed space of Amdtt moderate size will serve as a gas chamber. It is desirable J 1 that the chamber should have two doors, at opposite ends, so that when both are opened a draught is created which rapidly clears the room of gas. These doors should be kept locked when the chamber is not in use. Gas chambers should not be situated within ]00 yards of any road, pathway or track in frequent use, or within 100 yards of any tents, hutments, or billets where troops are quartered. Further, they should not be sited within 200 yards of any dwelling occupied by ; civilians. : Should it not be possible to find a suitable room or chamber Fol \ 9. Page 62, Appendix III, paragraph 11 (as amended ene by Amendment No. 2, notified in Army Order 4 line 14. For ‘‘by”™ substitute ‘‘to’’. a i? Me cicaring OIF tne enamber should be gradual and must be arranged to occupy at least ten minutes. The | partial opening of one door will generally ensure this. If the chamber has two doors, both should not be opened together. if. Gas chambers should not be cleared when the meteorological conditions are favourable for the travel of gas. In winter the wind velocity should be at least ten miles per hour, while in summer the early morning and late evening should be avoided, as these periods are favourable to the travel of gas. There is no objection to a store or barrack room being used, provided that it is well cleared and not used.or slept in for 24 hours afterwards. It should, however, be noted that the frequent use of such a room will result in a certain amount of lachrymator being deposited on the walls and floor which may render it unpleasant, though not dangerous. Such accumula- tion of lachrymator would be diminished by washing the floor and walls at intervals as required.” red atte](https://iiif.wellcomecollection.org/image/b32182363_0108.jp2/full/800%2C/0/default.jpg)
