Some experiments on sterilisation by steam.

Date:
[between 1890 and 1899]
Catalogue details

Licence: Public Domain Mark

Credit: Some experiments on sterilisation by steam. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    SOME EXPERIMENTS ON STERILISATION BY STEAM. It is generally admitted that, whenever it is applicable, disinfection by steam is the best process of disinfection which we possess. But there IS not the same unanimity of opinion with regard to the best method ciZZ^f' f'.'^''' °f °Pi^^ion that verv s i.h f f r'^ atmospherical pressure, or at a pressure ve y slightly above that, is capable of killing all pathogenic germs w thin a few minutes. Many authorities on the other hand say that Tn sutblff^^^^^^^^^^^ -^^ -g--^ -thin a^m^ unde tTele vil'f P'^'^^^^^ P^^P^^^^^ °f ^^eam observlTs aTd theo^^ ^^^^'^^t- l ^he superheated steam n el. ' r^ ' ^'^ P^°' that steam, has few ofTh^ adtnt r^^ '^'^^'^^ ^^turated ofhot^irfordilttt;;^^^^^ obscured in practice bv Z f % I disadvantages are, however, rapidly saturated steam L superheated steam become SaturlfpH ? u ^°^tact with cold objects at the ordinary alos'heXll ^'^^ g^^^^^ted whilst steam gle a^eTiTl^'r' temperature of roo° C, as Shown by S^^^'^^^^-^^^Z^^^ I'o atmosphere 2 -o atmospheres 2- c; 3- ° 3- 5 4- 0 ioo° C. 112-2° I2 1'4'' 128-8 140-6° 145 •4 Szc. less than that of two atmospheres. Such a