Definition: | helium at pressures, p, and/or temperature, T, above the critical point (p > 227 kPa, T > 5,2 K) which is characterized by zero latent heat of vaporization and a continuous density function Note 1 to entry: In magnet cooling application, high pressure (> 227 kPa) helium near 4,2 K is also called supercritical helium.
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