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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![‘7 ‘To prevent the freezing of the outlet valve of the face- insert :— ‘‘; with the facepiece, Mark IV, treatment of the outlet valve with glycerine is unnecessary.” y ee inlet V al VO Ul UU Liar, IEG WULICaAATICI Io live onrevevwr ~ i d and frozen, the valve if t dry. If moisture has entere ice Bs eave thawed, wiped dry and replaced. Inlet valves must not be treated with glycerine. 23. Respirator inspection . 1. Page 22, Section 23.—Delete paragraph J] and substitute :— 3. Page 22, Section 23, paragraph 2 (as amended by ~ Amendments No. 1 notified in Army Order 40 of 1928).— Delete first two lines and substitute :-— “A detailed inspection of respirators will be carried out Amdt. 4 who has qualified as an instructor at the Chemical Warfare School. He will enter the results of his Classification on Army Form G870A—the numbers of serviceable “S” and repairable “‘ R”’ (by unit) (see Sec. 26) and “D” (i.e. other Manethes\S”’-and “ R2*) being inserted in the appropriate columns ; Army Form G870A will then be rendered to 1.0.0. in quadruplicate. Repairs to those classified “ R” will be carried out forthwith under unit arrangements as laid down in sec. 26.” OF Markings thar wu ave seewssese sees vata iv. Metal valve holder is not damaged and makes a gas- tight joint with the facepiece. ay Outlet valve is not perished or punctured and = eegeke: attached. By gently pulling the ru | Cr; y punctures or weaknesses are more easily seen. i. Corrugated tube is sound and poole ee x both ends. If the container 's attache a Ss angle, the rubber tube may tw ist or beens ae and the facepiece will not stay on the oe pr Hee y. Hold the facepiece as ie aes ne ea: i ing e i hang freely 1 ; ce 2 fae tia the eee position relative to the cepiece. Sh al 8 ed container is without holes or signs of rust. | nae att PI0R rust on the inlet valve and if damage by wa is suspected, remove the vaive and examine 22, <](https://iiif.wellcomecollection.org/image/b32182363_0034.jp2/full/800%2C/0/default.jpg)
