. Preventive medicine and hygiene. Any steam disinfecting chamber may have attached to it an appa-ratus for generating formaldehyd gas, so that objects that are injuredby exposure to steam may be disinfected with formaldehyd, plus dry 1128 PHYSICAL AGENTS OF DISINFECTION heat. Before the formaldehyd is admitted into the chamber a partialvacuum may be established by means of the ejector. In this way thepenetration of the gas is very much facilitated. In the best patterns the steam disinfecting cylinders are open atboth ends, so that the infected objects may be introduced from one side. and take
. Preventive medicine and hygiene. Any steam disinfecting chamber may have attached to it an appa-ratus for generating formaldehyd gas, so that objects that are injuredby exposure to steam may be disinfected with formaldehyd, plus dry 1128 PHYSICAL AGENTS OF DISINFECTION heat. Before the formaldehyd is admitted into the chamber a partialvacuum may be established by means of the ejector. In this way thepenetration of the gas is very much facilitated. In the best patterns the steam disinfecting cylinders are open atboth ends, so that the infected objects may be introduced from one side. and taken out from the other, which diminishes the risk of reinfectingthem. The joint between the door and the chamber is made tight bymeans of a heavy rubber gasket. The door should not be pressed againstthis gasket more firmly than is found necessary to retain the steam,otherwise the rubber will soon be rendered useless. When not in use thedoor should be kept open, otherwise on cooling the metal will adhere PHYSICAL AGENTS OF DISINFECTION 1129 to the rubber gasket. This may be prevented to a certain extent bykeeping the rubber gasket covered with graphite. In addition to the above-mentioned attachments the disinfectingchambers are also supplied with a thermometer (7, Fig. 160), the stemof which is turned at right angles and protrudes so as to indicate thetemperature of the interior of the disinfecting chamber. The thermom-eter, however, is so close to the jacket that it is influenced by the heat inthe jacket, which is usually higher than the temperature of the interiorof the chamber
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Keywords: ., bookauthorwh, bookcentury1900, bookdecade1910, booksubjecthygiene
