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Biological Indicators

About Biological Indicators

Biological indicators are used to monitor and evaluate the effectiveness of sterilization. They are designed for use with ethylene oxide gas, dry heat, steam or radiation. Ethylene oxide gas is used to kill bacteria, mold and fungi in medical supplies such as bandages and food stuffs such as spices. Dry-heat sterilization uses an oven to raise the temperature of items that are wrapped in foil or fabric. Steam sterilization uses an autoclave, a self-locking machine that sterilizes its contents with steam under pressure. Biological indicators that are suitable for use with gamma and electron beam radiation techniques are also available.

Biological indicators are available in many different forms. Examples include strips, discs, suspensions, test tubes and ampoules. Spore strips are biological indicators that are packaged in a pouch made of glassine, a paper that is resistant to moisture and air at ambient temperatures and pressures. Spore discs are usually made of borosilicate paper or stainless steel. Spore suspensions are diluted aliquots that are derived from a primary batch of spores. Test tubes are available in a variety of sizes and are usually made of expansion-resistant glass. Ampoules are small, self-contained, vials which are hermetically sealed with a flame. They have a score mark around the neck so that the sealed top can be snapped off by hand. Typically, ampoules are used to contain hypodermic injection solutions.

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Products & Services Related to Biological Indicators

Microplates
Microplates are plastic plates or cassettes that containing a number (typically 96 or 384) of small wells arranged in rows. Microplates are used to conduct a number of chemical reactions at the same time.
Plastic Labware and Glass Labware
Plastic labware and glass labware are made of glass or plastic and intended for laboratory use. Type, volume, and material of construction are the most important specifications to consider.
Vials
Vials are small glass bottles used for storage.

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Engineering Web: Biological Indicators

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Biological Indicators
Products & Services > Health Care > Medical Specialties & OEM Products > Industrial Sterilization Specialties International > Biological Indicators
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Part Numbers for Biological Indicators

Part # Distributor Manufacturer Product Category Description
14-490-24 Amazon Fisher Scientific BISS Thermo Scientific Indicators, Incubator and Pouches, B/T Sure Biological Incubator
1449024 Amazon Thermo Scientific BISS Thermo Scientific BT/Sure Biological Indicators; For Instrument, Glassware, Apparatus; Color: Purple
14-490-25 Amazon Fisher Scientific BISS Thermo Scientific Indicators, Incubator and Pouches, Sterilamp II Biological Indicator
11715140A Amazon Thermo Scientific BISS Thermo Scientific Sterilamp II Biological Indicator; For Media and Additives; Box of 100 Vials
12-001-1 Amazon Fisher Scientific BISS Prospore Self-Contained Biological Indicator, pack of 10

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