Chemical Hygiene Plan and Safety Manual - LP3005.6 Section V: General Environmental Safety

2 6 5 1 Decibel testing may be performed in house or by an outside vendor Records will be kept of the test and results of inquiry

2.6.5.2 Decibel testing will be recorded in the LF3002 Decibel Testing Logbook.

2.7 Ventilation:

2.7.1 The laboratory will be equipped with proper ventilation systems, separated out between each department. This is done to reduce the potential of airborne cross-contamination.

2.7.2 The air ventilating throughout the lab will be filtered as to not bring in any external environmental contamination.

2.7.3 The internal laboratory temperature will be constantly maintained at a specified range. This is to ensure all testing being performed is done in the proper environment.

2.8 Chemical Fume Hoods:

2 8 1 Chemical fume hoods are to be used by personnel when they need to work with certain hazardous chemicals

2 8 2 If chemicals are irritating to the skin, eyes or respiratory tract, personnel must work with them exclusively under the fume hood

2 8 3 Only trained personnel are to operate fume hoods

2 8 4 Before using a fume hood, check to ensure the air is circulating properly

2 8 5 The sash is to be kept as low as possible Employee’s heads should never be below the level of the sash

2 8 6 PPE is required to be worn when using a hood

2 8 7 It is prohibited for chemicals to be stored in the fume hood

2 8 8 Personnel are to work with as little clutter as possible in a fume hood Having too many items in the hood can increase the risk for spilling or can block the air flow and circulation.

2.8.9 All materials in the hood are to be kept at least six inches away from the sash.

2.8.10 The sash is to be kept closed when running but not actively in use.

2.8.11 The air flow and circulation is to be checked by a qualified outside vendor once a year. LF4001 Equipment Maintenance Form is to be completed after the check.

2.8.12 Equipment that is required to operate in a fume hood must not be utilized in a fume hood containing stove top burners.

2.8.13 Flammable solvents are not to be utilized in a fume hood containing stove top burners nor can they be utilized simultaneously with any equipment that generates heat, including but not limited to muffle furnaces or hot blocks.

3.0 References / Cross-References

3 1 LP3006 Section VI: Emergency and Accident Plan

3 2 LF3002 Decibel Testing Logbook

3 3 LF4001 Equipment Maintenance Form