Cryoguard™ Corporation’s Thermal Exposure Indicators have been monitoring heat sensitive materials for over 30 years. The indicators, which were originally developed to assure the quality of frozen blood products being administered on the battle field, are now used to assure the quality of a variety of heat sensitive materials including sperm, eggs, bone grafts, vaccines, cord blood, blood plasma, stem cells, clinical specimens and premixed epoxy adhesives during shipping, storage and handling by technicians and customs inspectors.
With a Cryoguard indicator monitoring your goods, you can tell in an instant (when the indicator is green) that the efficacy of your goods was not compromised by thermal exposure.
Using the indicators eliminates costly and frustrating procedure failures caused by the use of thermally compromised products.
At its signal temperature, a Cryoguard indicator irreversibly changes color from green to red within one to two hours. At 10°C to 15°C above its signal temperature the indicator changes color within minutes. At 25°C below its signal temperature the indicator remains green. Cryoguard indicators are available with “signal” temperatures preset at -40°C, ‑70°C, ‑100°C, -120°C, -135°C and -150°C.
By monitoring your goods with an indicator whose signal temperature is: a) equal to or lower than the maximum temperature designated for your goods and b) at least 25°C higher than the temperature used for shipping or storage, the indicator while green provides assurance that your goods are safe to use.
For example, the M-150 indicator is used to monitor products shipped or stored in liquid nitrogen that need to be kept at or below -150°C, whereas the M-40 indicator is used to monitor products shipped in dry ice that need to kept at or below -40°C.
Cryoguard indicators eliminate the guesswork in deciding whether heat sensitive products are safe to use and in so doing provide a hassle free alternative to a data logger.
Cryoguard Corporation also provides Cryoguard freezer boxes. These boxes have openings on their sides for viewing indicators to facilitate verification that the material in the freezer box was never subjected to potentially damaging thermal exposure during handling, power failures and periods of coolant depletion.
Do you want to feel more confident when handling cryogenic materials? Try the product today! Join the other leading hospitals, fertility clinics, stem cell labs, universities and aerospace companies who rely on Cryoguard indicators to ensure proper handling of heat-sensitive materials.
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