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GUIDELINES FOR EFFECTIVE HOOD USE
- Know the physical, chemical and toxicological properties of the chemicals with which you are working.
- Use the light for proper illumination.
- Keep the hood clear and uncluttered.
- All work in a hood should be performed at least 6 inches inside the hood.
- When large equipment is used, elevate the equipment approximately 2 inches off the base of the hood to allow air to flow under the object.
- Always lower the sash to the lowest possible position and use the sash as a shield. Keep the sash height at or below the arrow on the hood inspection label. This indicates minimum working height to maintain the hoods face velocity at ~100 fpm.
- Never place your head inside the hood.
- Avoid rapid movement in front of the hood. Avoid drafts created by turbulence from air supplies within the laboratory or created by people moving in front of the hood.
- Fume hoods are not to be used for the disposal of materials. The cap of the waste bottle must seal the bottle immediately after pouring waste into it. Call SASS for chemical disposal pick up.
- Report suspected hood malfunctions to HESS to have the hood tested and SASS for specific repairs.
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