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MATERNAL PHENYLKETONURIA
Author(s) -
Williams Ross
Publication year - 1968
Publication title -
medical journal of australia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.904
H-Index - 131
eISSN - 1326-5377
pISSN - 0025-729X
DOI - 10.5694/j.1326-5377.1968.tb82735.x
Subject(s) - citation , psychology , library science , medicine , computer science
If formalin is used frequently to sterilize a ventilator, a careful eye should be kept on its moving parts, as formaldehyde can cause corrosion of iron, copper, nickel and zinc alloys (Walker, 1953). SUMMARY The ability of formaldehyde to kill vegetative organisms, spores, and tubercle bacilli in various ventilator circuits was Investigated in the experimental circuits. Formaldehyde was able to kill all types of organisms tested, except tubercle bacilli (in circuits in which less than saturated vapour pressure formalin could be obtained). It is concluded that when contamination is likely to be due to vegetative organisms, and facilities for ethylene-dioxide sterilization are not available, formalin can be used quite eff~ctively to sterilize the ventilator. However, there must still be some doubts as to the efficiency in the presence of spores and tubercle bacilli, particularly when it occurs in circle systems in which sputum, etc., may mask the organism from the attack of formaldehyde.