Finished radiographs should be stored at what temperature and humidity?

• A. 60 degrees F and 30-40% Humidity
• B. 70 degrees F and 40-60% Humidity
• C. 75 degrees F and 50-70% Humidity
• D. 65 degrees F and 20-30% Humidity

Answer: (B)

Maintaining stable environmental conditions is essential to preserving finished radiographs. The recommended storage condition for film radiographs is a relatively cool, moderate humidity environment—around 70°F with 40–60% relative humidity. This balance helps keep the gelatin emulsion on the film from drying out or absorbing excess moisture, which can lead to distortion or chemical instability over time. It also minimizes static electricity, which is more likely to cause artifact if the air is too dry. Other combinations push the conditions away from this balance: cooler or drier environments increase static artifacts and brittleness; warmer or more humid environments raise the risk of moisture-related changes and mold or binder degradation. So, 70°F with 40–60% humidity best supports long-term film integrity.