If humidity rises above the standard, what will occur during film handling?

• A. The density of the film increases with no handling changes.
• B. The films will become sticky and film handling becomes difficult.
• C. There is no effect on handling.
• D. The film handling improves.

Answer: (B)

High humidity makes the gelatin emulsion on radiographic film absorb moisture, which softens the film and increases its tackiness. When films are sticky, they cling to one another and to gloves, screens, or other handling surfaces, making separation and handling awkward and more prone to fingerprints or scratches. This is why keeping humidity within the recommended range is important for smooth handling. The film’s density is determined by exposure and processing, not by ambient humidity during handling, and humidity does not improve handling; it tends to make it harder.