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The Control of Substances Hazardous to Health Regulations 1999

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PART IICONTAINMENT MEASURES FOR HEALTH AND VETERINARY CARE FACILITIES, LABORATORIES AND ANIMAL ROOMS

Containment measuresContainment levels
234
In this Part of this Schedule, “Class III cabinet” means a safety cabinet defined as such in British Standard 5726: Part I: 1992, or unit offering an equivalent level of operator protection as defined in British Standard 5726: Part I:1992.

1.  The workplace is to be separated from any other activities in the same building.

NoYesYes

2.  Input air and extract air to the workplace are to be filtered using HEPA or equivalent.

NoYes, on extract airYes, on input and double on extract air

3.  Access is to be restricted to authorised persons only.

YesYesYes, via air-lock key procedure

4.  The workplace is to be sealable to permit disinfection.

NoYesYes

5.  Specified disinfection procedures.

YesYesYes

6.  The workplace is to be maintained at an air pressure negative to atmosphere.

No, unless mechanically ventilatedYesYes

7.  Efficient vector control eg rodents and insects.

Yes, for animal containmentYes, for animal containmentYes

8.  Surfaces impervious to water and easy to clean.

Yes, for benchYes, for bench and floor (and walls for animal containment)Yes, for bench, floor, walls and ceiling

9.  Surfaces resistant to acids, alkalis, solvents, disinfectants.

Yes, for benchYes, for bench and floor (and walls for animal containment)Yes, for bench, floor, walls and ceiling

10.  Safe storage of biological agents.

YesYesYes, secure storage

11.  An observation window, or alternative, is to be present, so that occupants can be seen.

NoYesYes

12.  A laboratory is to contain its own equipment.

NoYes, so far as is reasonably practicableYes

13.  Infected material, including any animal, is to be handled in a safety cabinet or isolator or other suitable containment.

Yes, where aerosol producedYes, where aerosol producedYes (Class III cabinet)

14.  Incinerator for disposal of animal carcases.

AccessibleAccessibleYes, on site

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