113 Revised Standardized Equation for Hydrogen Gas Densities for ... - NIST

tion for the density of hydrogen between 220 K and 400 K with pressures to 45 MPa. This equation calcu-lated density as a function of temperature and pressure and agreed with the Younglove equation of state to less than 0.01 % in density. It is used in SAE Standard J2572, Recommended Practice for Measuring Fuel ................
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