Why are chemical indicators used with sterilization packs?

• A. They show that the pack has been subjected to the correct temperature/time and that the sterilization process was achieved.
• B. They measure the weight of the pack.
• C. They serve as a decorative label.
• D. They indicate the shelf life of the product.

Answer: (A)

Chemical indicators in sterilization packs are used to confirm that the pack has actually been exposed to the required sterilization conditions, including the necessary temperature and time. They produce a visible change when those process parameters are met, providing immediate process verification that the pack has undergone the sterilization cycle. It’s important to recognize that indicators show exposure to the right conditions, not a guarantee of sterility—that confirmation comes from biological indicators. They aren’t about weighing the pack or determining shelf life, nor serve as decorative labels.