Adhesive indicator labels are designed to distinguish between sterilized and non sterilized items. Labels are glued to disposable wrapping sterilization material, sterilization bags. The sterilization process indicator and other additional information are applied to the labels. Additional information can be applied manually by the operator or with a label gun with pre-entered information. For example, the name of the hospital. department name sterilization date and expiration date, package contents, sterilization date, autoclave and cycle number, load number and technician name. Sterilization labels also allow identification of the expiry date.