Report on, and schedule of, experiments with disinfectants / by Lt.-Col. R.H. Firth, F.R.C.S., D.P.H., R.A.M.C., (Fellow) and Allan Macfadyen, M.D., B.Sc., F.I.C.

  • Robert Hammill Firth
Date:
1906
Catalogue details

Licence: In copyright

Credit: Report on, and schedule of, experiments with disinfectants / by Lt.-Col. R.H. Firth, F.R.C.S., D.P.H., R.A.M.C., (Fellow) and Allan Macfadyen, M.D., B.Sc., F.I.C. Source: Wellcome Collection.

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    No. of Method and Tem- peratuie Mic.ro- orgamsms. Disinfectant. Dilution. Lengths of Exposure or Contact in minutes. Perio d and Tempera¬ ture of Expt. at which lncuba- performed. 5 7^ 10 12£ 15 tion. 121 Drop 68° F. B. typho- Perman- 1 : 400 2 days PUS ganate of 1 :300 • • • ... ... ... ... ... at 37° C. (McF.) potassium 1 : 200 • • • • • • ... ... ... ... 1 : 100 ... ... ... • • • Phenol 1 : 120 + 4- 4- ... ... ... 122 Drop B. typho- Perman- 1 : 2000 • ■ • 2 days 63° F. sus ganate of 1: lf.00 ... ... ■ • • ... ... ... at 376 C. (McF.) potassium 1 : 1000 • • • . . . ... ... ... ... 1 : 800 • • • ... ... • • • ... Phenol 1 : 120 + + 4- 4- 4- ... 123 Drop B. typho- Perman- 1:10000 4- + + + 4- ... 2 days 68° F. sus ganate of 1:9000 4- + + 4- 4- ... at 37° C. (McF.) potassium 1 :7000 + + + 4- ... ... 1 : 5000 4- 4- • • • Phenol 1: 120 + 4- • • • ... ... ... 124 Drop B. typho- Perman- 1:3000 4- + 4- + + 4- 2 days 65° F. sus ganate of 1: 2000 + 4- 4- ... at 37°C. (McF.) potassium 1:1000 4- ... ... ... dilutions made with 1/5 part of 1:5U0 4- . • . . . • • .. ••• • • • sterile urine Phenol 1: 120 4- 4- + 4- 125 Drop B. typho- Sanitas Co.’s. 1: 250 4- + 2 days 61° F. sus Liq. cresyl 1: 180 4- • • • ... ... at 37° C. (McF.) sap. (A.) 1: 130 • • • • • • ... • • • ... 1: 100 • • • ... Phenol 1:90 4- • • • ... ... • • • ... 126 Drop B. typho- Cyllin 1 :990 + + 4- 4- 4- + 2 days 67° F. sus dilutions 1 : 880 4- + 4- 4- 4- + at 37° C. (McF.) containing 1 :770 + ... ... ... ... ... 1/5 part sterile 1: 660 ... ... ... ... ... ... urine Phenol 1: 110 4- • • • • • • ... ,,, ... 127 Drop B. typho- Tr. lodi. 1 : 500 4- 4- 4- 4- 4- + 2 days 62° F. sus dilutions 1 : 400 + + + 4- 4- + at 37° C. (McF.) containing 1: 300 + 4- + + 4- 4- 1/5 part sterile 1:200 4- 4- 4- 4- + + urine Phenol 1 : 110 4- 4- 4- ... ... ... 128 Drop B. typho- Tr. Iodi. 1 : 200 + 2 days 65° F. sus dilutions 1: 150 ... • • • • • • at 37° C. (McF.) containing 1 : 100 • • • ... • • • ... 1/5 part sterile 1 : 50 ... ... ... • • • • • • ... urine 4- 4- •
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