Difference between COOLPROP ans REFPROP (bubble point temperature)

[H-H....@arcor.de]

Dear all,
for the premixed refrigerant R454B i get at the state P = 2.5 MPa and Q = 0 (quality) with

COOLPROP (fluid = 'HEOS::R454B.MIX') the temperature 43,57 °C
REFPROP (fluid = 'REFPROP::R454B.MIX') the temperature 46,86 °C

The temperature with COOLPROP is equal to the temperature of the vapor pressure table of REFPROP (manual generation) and is therefore the right one. The differences in the case of R454C and R455A are much bigger. Is there something wrong with the mixing parameters in REFPROP?

Thanks for every answer, Hans-Herbert

[H-H....@arcor.de]

Hello, now the error does not exist. Thank You!