What is the testing period for gloves that remain unopened?

The correct answer is 1 year because this duration is commonly accepted as the testing period for unopened gloves. Manufacturers typically guarantee the integrity and safety of gloves for one year from the date of manufacture, provided that they have been stored properly in a controlled environment. After this period, the materials may degrade or be affected by changes in temperature, humidity, or exposure to light, which can compromise their quality and effectiveness.

The other choices represent timeframes that are either shorter or longer than the standard one-year shelf life recognized in many industry guidelines. Therefore, while gloves may physically remain unopened for longer, the assurance of their performance and safety typically only extends to that one-year mark.