Penny Test

Penny Test

Write a short note on penny test.
Answer.

The penny test is also known as coin test.

• Penny test is the test for checking unsafe illumination
• Penny test is done to evaluate fogging caused by inappropriate safe lightning conditions.

“Understanding the role of the penny test in imaging quality assurance: Q&A explained”

Penny Test Procedure

• Shut all the lights and put on the safe light.
• Film packet should be opened and base film is placed in the area where films are usually unwrapped.
• Place the film on flat surface at least 4 feet distance from safe light
• A coin should be placed on the film and left in same position for approximately 5 minutes. Now remove the coin and process the film.
• Test film should be developed as usual.

“Importance of studying the penny test for better imaging outcomes: Questions explained”

Penny Test Inference

• If image of the coin can be seen on resultant film, room is not light safe for the film which is tested.
• If no visible image is seen on the resultant film, then safe lightening is proper and should be proceed with film processing.