Storage, cleaned surfaces cabinet

Housekeeping (contamination control) Efforts to minimize contamination in the processing area. Examples include cleaning surfaces, reducing clutter, storage in closed cabinets, no dust-catching surfaces such as the tops of cabinets or spaces under cabinets that are hard to clean, etc. 

General Observations Good housekeeping in the area, no visible indications of surface contamination. No signs of smoking or eating. Two desks had coffee cups. Scrapers and wire brushes not cleaned after use, but they are only used for the pump clean and they are kept in a small metal cabinet under the work bench that is dedicated to their storage. 

Active storage environments are those where the contaminants are continually removed from the storage environment. Preferential hydrocarbon adsorption can be on freshly oxidized aluminum or activated carbon. Hydrocarbon contaminants can be continually removed by having an oxidizing atmosphere to react with the hydrocarbons to form CO and CO2. A UV/O3 cleaning cabinet provides such an environment. The UV/O3 cleaning chamber is excellent for storing surfaces where surface oxidation is not a problem. 

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