154 



DISINFECTION AND STERILIZATION 



1 to 2 pints of crude carbolic acid. The edge of the crater is 

 thereupon pushed into the fluid, when a lively reaction fol- 

 lows. Owing to the heat generated, it is advisable to place 

 the chloride of lime in an iron crucible (pot) and to have 

 nothing inflammable within a radius of 2 feet. The num- 

 ber and location of these cones of chloride of lime depend 

 on the size and structure of the building to be disinfected. 

 As a rule it may be stated that chlorine gas liberated from 

 the above sized cone will be sufficient for disinfecting 5200 

 cubic feet of air space."* 



Liquid manure, leachings, etc., where collected are thor- 

 oughly disinfected by chloride of lime applied in the pro- 

 portion of 2 parts to 1000 of fluid. 



Fig. 107. — Chamber used in government work for formaldehyde disinfec- 

 tion. The small cylinder at the side is the generator. 



Vehicles may be thoroughly washed with 2 per cent for- 

 malin solution, or if closed space is available, subjected to 

 formaldehyde gas disinfection, after cushions, hangings, etc., 

 have been removed and washed with the disinfectant. 



Harness, brushes, combs should be washed with a solution 

 of formalin, carbolic acid or creolin as given under these 

 topics. 



Washable articles should be boiled, dropped into disinfec- 

 tant solutions ^s soon as soiled and then boiled or steamed. 



Unwashable Articles.— Buth all possible. Use formalde- 

 hyde gas method in a closed receptacle (Fig. 107). 



