STERILIZING MEASURED AMOUNTS OF WATER 



539 



TABLE 2 

 Effect of cotton plugs on loss of water in autoclaving 



Most workers place 100 cc. of water in the auto-clave expecting 

 1 cc. to be lost during sterilization. The results reported give 

 an average loss of 3.2 per cent for water sterilized in bottles car- 

 rying cotton plugs. The greatest loss was 4.1 per cent and the 

 least 2.4 per cent. 



More water is evidently lost when measured amounts of water 

 are sterilized in the auto-clave than is ordinarily allowed for. 



