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Film handling. According to NFPA 40, not more than 20 rolls of nitrate film is to be outside of storage cabinets. It appears that more than 20 rolls of film are outside of the storage cabinets during various phases of operation. The nitrate film is stored overnight in metal cabinets. These cabinets are equipped with exhaust ventilation. However, the exhaust is vented into a duct which is common to other areas in the space occupied by the laboratory. It is possible that smoke or toxic vapors entering this common duct could be vented to other areas of the laboratory.
When storage cabinets are full, excess nitrate film is stored in a cooler located in the outside moat area. The cooler is not equipped with proper electrical wiring or fixtures ,_ does not have a warning mechanism which indicates a malfunction, has no sprinkler protection, explosion vents, and presents an exposure hazard to the Archives building. This cooler should not be used for storage of nitrate film.
Summary of film laboratory deficiencies based on NFPA 40 1974
1. The sprinkler system at this time is designed for "ordinary hazard" which means sprinkler heads are installed on 100 sq. ft. spacing. The film laboratory is an extra hazard occupancy and the sprinkler system should be designed for "extra hazard" with sprinkler heads installed on 64 sq. ft. spacing.
2. The doors along the corridor of the film laboratory are not fire doors. These doors should be Class B self-closing fire doors which swing in the direction of exit travel.
3. Storage cabinets are at present vented into a common exhaust duct. The storage cabinets should be vented directly to the outside.
4. The cooler which is located in the moat area does not meet any of the requirements for the storage of nitrate film. The practice of storing nitrate film in the cooler should be discontinued.
5. Fire extinguishers located in the film laboratory are of the C02 type. These extinguishers should be of the water type.
6. There should be at least two exits from every room where more than two employees are working. The timing room has one way out with as many as four employees working in the room at times.
7. The set of double doors to the corridor from the receivingholding area are blocked. In order to comply with exit requirements, these doors should be kept clear, changed to self-closing Class B fire doors and rehung to swing in the direction of exit travel.