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Sterilisation of surgical instruments with formaldehyde gas
  1. A. M. Lubbe, MMedVet(Surg)1 and
  2. M. M. Henton, BVSc2
  1. 1 Section of Small Animal Surgery, Department of Surgery, Faculty of Veterinary Science, University of Pretoria, Private Bag X04 Onderstepoort 0110, Republic of South Africa
  2. 2 Onderstepoort Veterinary Institute, Private Bag X05, Onderstepoort 0110, Republic of South Africa


Haemostatic forceps contaminated with Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus cereus and Aspergillus flavus were exposed to formaldehyde gas for up to 48 hours at different temperatures and relative humidities. After 24 hours at 22 to 24°C and a relative humidity of 73 per cent they were sterilised reliably and completely.

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