Indicator systems for determination of sterilization

A sterility indicator for determining the effectiveness of a sterilization procedure comprising:

• a container having liquid impermeable walls and at least one opening communicating with an interior chamber, the chamber containing biological material used as an indicator of destruction of living organisms by the sterilization procedure;
• a gas-transmissive insert adjustably positioned in the at least one opening wherein movement of gas between the environment surrounding the sterility indicator and the interior chamber occurs through the gas-transmissive insert and said plug has an inside portion inside said at least one opening and an overhang portion extending outside of said at least one opening.

An indicator system for determining the effectiveness of a sterilization parameter comprising:

• an outer container having liquid impermeable walls and at least one opening communicating with a chamber containing a test indicator suitable for indicating effective sterilization by the sterilization parameter;
• a gas-transmissive insert positioned in the at least one opening wherein movement of gas between the environment surrounding outer container and the chamber containing the test indicator occurs through the gas-transmissive insert and said insert has an inside portion inside said at least one opening and an overhang portion extending outside of said at least one opening.

An indicator system for determining the effectiveness of a sterilization parameter comprising:

• an outer container having liquid impermeable and substantially gas non-absorptive walls and at least one opening communicating with a chamber containing a test indicator suitable for indicating effective sterilization by the sterilization parameter;
• a gas-transmissive insert positioned in the at least one opening such that movement of gas between the environment surrounding outer container and the chamber containing the test indicator occurs through the gas-transmissive insert.

A test pack for detecting a predetermined environmental parameter of a sterilization process comprising:

• a container having liquid impermeable and substantially gas non-absorptive walls and at least one opening communicating with an interior chamber, said chamber containing;
• a test indicator comprising another container having liquid impermeable and substantially gas non-absorptive walls and at least one opening communicating with an interior chamber;
• wherein gas-transmissive inserts are positioned over each of said openings and said environmental parameter can move from the exterior of said test pack to said interior chamber of said test pack and to said interior chamber of said test indicator.