抄録
A direct weighing densimeter was newly developed for the measurement of densities for compressed liquids. The density of 1, 1, 1, 2-tertrafluoroethane was measured by means of the new apparatus at 283 to 353 K and from near the saturated line to pressures up to 20 MPa. It is confirmed that an uncertainty of density is ± 0. 15 % in the high density region.
