Transcription of SEALABILITY OF MICROBIOLOGICAL …
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SEALABILITY OF MICROBIOLOGICAL …
SEALABILITY OF MICROBIOLOGICAL containment LEVEL 3 AND 4 FACILITIES Contents: ASSESSING ROOM FREQUENCY OF SEALABILITY 1 INTRODUCTION 1. The Approved Code of Practice (ACoP) supporting the Control of Substances Hazardous to Health Regulations 2002 (COSHH) requires that, for containment level (CL) 3 and 4 facilities, the workplace is to be sealable to permit disinfection. In practice, this means that once the workspace has been filled with the fumigant it must be contained within the room at an appropriate concentration and for the required time to allow effective disinfection. The fumigant should not be allowed to escape from the room until it is extracted safely. 2. The most effective means of disinfecting a whole room is to use a gaseous/vaporised disinfectant since this will contact all surfaces. Currently, the most common means of disinfecting CL3 and CL4 facilities is to fumigate using formaldehyde vapour.
sealability of microbiological containment level 3 and 4 facilities contents: introduction.....2
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