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The Examination of some Commercial Carbolic Acids and Disinfecting Powders

Published online by Cambridge University Press:  15 May 2009

M. Wynter Blyth
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1. The phenol solutions used as a standard in the bacteriological testing of disinfectants should be made from pure freshly distilled phenol.

2. The actual quantity of phenol, cresylic acid and water present in commercial carbolic acids and in carbolic powders may be estimated by extracting the oils and testing their germicidal power.

3. The comparative germicidal value of disinfectant powders may be estimated by keeping the powder and organism in contact by mechanical means during the whole period of the experiment.

Type
Research Article
Information
Journal of Hygiene , Volume 8 , Issue 1 , January 1908 , pp. 83 - 91
Copyright
Copyright © Cambridge University Press 1908

References

Robertson, G. W. and Severn, W. D. (1904–1905). Report of the Medical Officer of Health for Cape Colony.Google Scholar
Blyth, M. W. and Goodban, L. (v. 1907). The estimation of Phenol and Cresol by a bacterial method. The Analyst.CrossRefGoogle Scholar
Blyth, M. W. (1906). The Standardisation of Disinfectants. Journ. Soc. Chem. Industry, XXIII. 1183.Google Scholar
Lunge, G. (1900). Coal Tar and Ammonia, p. 516.Google Scholar