1pcs Autoclave Sterilization Indicator Tape Steam Dry Heat or Chemical Sealer 19mm x 50m

Product specifications: width: 19mm, length 50m Instructions: There is an irregular intermittent oblique indicator on the indicating tape. Leave it in an exhaust pressure steam sterilizer at 121°C for 20 minutes or a pre-vacuum pressure steam sterilizer at 132°C~134°C for 4-6 minutes. The color bar changes from yellow to gray-black or black, indicating that the sterilization process is complete