. Bacteriology and mycology of foods. Food. HYGIENIC LABORATORY METHOD 155 Determining the Coefficient. After a large number of experiments we have concluded that the method employed by the Lancet commission, with certain modifications, is the best one for determining the coeffi- cient, , the mean between the strength and time coeflBcients. In performing the test, plants are made every two and a half minutes up to and including fifteen minutes. To determine the coefficient, the figure representing the degree of dilution of the weakest strength of the disinfectant that kills within two and
. Bacteriology and mycology of foods. Food. HYGIENIC LABORATORY METHOD 155 Determining the Coefficient. After a large number of experiments we have concluded that the method employed by the Lancet commission, with certain modifications, is the best one for determining the coeffi- cient, , the mean between the strength and time coeflBcients. In performing the test, plants are made every two and a half minutes up to and including fifteen minutes. To determine the coefficient, the figure representing the degree of dilution of the weakest strength of the disinfectant that kills within two and a half minutes is divided by the figure representing the degree of dilution of the weakest strength of. Fig. 45.—Device for Flaming Inoculating Loops. the phenol control that kills within the same time. The same is done for the weakest strength that kills in fifteen minutes. The mean of the two is the coefficient. The method of determining the coefficient will be seen in Table XIII. B. THE DETERMINATION OF THE COEFFICIENT WITH THE ADDITION OF ORGANIC MATTER It may be well to briefly discuss here the meaning or significance of the term " phenol coefficient," particularly when it is determined in the presence of organic matter. In general terms the coefficient. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Tanner, Fred Wilbur, 1888-1957. New York, John Wiley & Sons, Inc. ; [etc. ,etc. ]
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectfood, bookyear1919
