Sub Zero Liquid Nitrogen Ice Cream started in 2004. Nearly a decade later, founders Jerry and Naomi Hancock pitched the business on a 2013 episode of ABC's "Shark Tank." While the show's "shark ...

Dry Ice, Liquid Nitrogen, Compressed Gases, Gas Tank regulators and valves are available through Procurement and Payment Services' Lab Gas Program: Lab Services monitors the quantities and locations ...

Systems that incorporate liquid nitrogen traps must never be opened to the atmosphere ... inside and outside of the room of low oxygen levels. Each compressed gas cylinder must be clearly labeled to ...