378 DISINFECTANTS. 



5. Mercuric chlorid ; a solution of 1.500. 



For the destruction of material which owes its infecting power to 

 the presence of inicro-organisms not containing spores, the committee 

 recommends : 



1. Fire ; complete destruction by burning. 



2. Boiling in water for ten minutes. 



3. Dry heat ; 110 degrees C. (230 degrees F.) for two hours. 



4. Chlorid of lime ; a two per cent solution. 



5. Solution of chlorinated soda ; a ten per cent solution. 



6. Mercuric chlorid ; a solution of 1 : 2,000. 



7. Carbolic acid ; a five per cent solution. 



8. Sulphate of copper ; a five per cent solution. 



9. Chlorid of zinc ; a ten per cent solution. 



10. Sulphur dioxid ; exposure for at least twelve hours to an at- 

 mosphere containing at least four volumes per cent of this gas in the 

 presence of moisture. 



The committee would make the following recommendations with 

 reference to the practical application of these agents for disinfecting 

 purposes : 



For Excreta. (a) In the sick room: 



1. Chlorid of lime, four per cent. 

 In the absence of spores: 



2. Carbolic acid in solution, five per cent. 



3. Sulphate of copper in solution, five per cent. 

 (6) In privy vaults: 



1. Mercuric chlorid in solution, 1 : 500. 



2. Carbolic acid in solution, five per cent. 



(c) For the disinfection and deodorization of the surface of masses 

 of organic material in privy vaults, etc. : 



Chlorid of lime in powder, or freshly burned quicklime. 



For Clothing, Bedding, etc. (a) Soiled underclothing, bed 

 linen, etc. 



1. Destruction by fire, if of little value. 



2. Boiling for at least half an hour. 



3. Immersion in a solution of mercuric chlorid of the strength of 

 1 : 2,000 for four hours. 



4. Immersion in a two per cent solution of carbolic acid for four 

 hours. 



