Development of this software package was supported by the NIST Thermophysical Properties Division and the NIST Standard Reference Data Program. Finally, we acknowledge our many colleagues whose property measurements and models we have taken from the literature, and without which this database would be much reduced in scope. We also made extensive use of the CATS Database for Pure Fluids and Mixtures of the Center for Applied Thermodynamic Studies of the University of Idaho, Moscow, Idaho, the NIST/TRC SOURCE and TDE Databases, the AIChE DIPPR database, and the Dortmund Data Bank for Pure Component Properties (DDB-Pure), Oldenburg, Germany, in fitting the models implemented in REFPROP. We had many helpful discussions with Dan Friend, Allan Harvey, Roland Span, Wolfgang Wagner, Richard Jacobsen, Vincent Arp, Arno Laesecke, Richard Perkins, and Reiner Tillner-Roth. We thank Sanford Klein and Adele Peskin, the programmers of the original graphical interface implemented in version 6. Jim Ely, Dan Friend, and Marcia Huber wrote the early versions of the related databases NIST12 and NIST14 from which we have extracted algorithms. Previous versions of the REFPROP database were developed by Graham Morrison and John Gallagher. Chris Muzny (of NIST) aided with the link to C++, and with the MATLAB link. Lennart Vamling (of the Chalmers University of Technology in Sweden), Johannes Lux (of the German Aerospace Center), and Paul Brown (of Ramgen Power Systems) aided in the MATLAB link. Arno Laesecke (of NIST) provided an extensive collection of viscosity data. Diego Ortiz (of Texas A&M University), Andreas Jaeger, and Johannes Gernert (both from the Ruhr University, Germany) helped with the analytical VLE routine added in version 9.0. Venkatarathnam (of the Indian Institute of Technology Madras) and Matthias Kunick (of the Zittau/Goerlitz University of Applied Sciences, Germany) provided routines and much help in the development of new algorithms for the calculation of VLE states in 9.1, particularly in the critical region. Frank Doyle developed the UserInformation sheet in the Excel file. Allan Harvey (of NIST) provided very thorough and greatly appreciated debugging of REFPROP. Gary Hardin (of NIST) provided support with the help file and the installation package. Microsoft, Windows, Excel, and Visual Basic are either registered trademarks or trademarks of the Microsoft Corporation in the United States and/or other countries MATLAB is a trademark of MathWorks.Ĥ ACKNOWLEDGEMENTS We gratefully acknowledge the many contributions of our colleagues and associates. In no case does such identification imply endorsement by the National Institute of Standards and Technology, nor does it imply that the products or services so identified are necessarily the best available for the purpose. Certain trade names and other commercial designations are used in this work for the purpose of clarity. No part of this database may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the distributor. Secretary of Commerce on behalf of the United States of America.
However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database copyright by the U.S. Department of Commerce Technology Administration National Institute of Standards and Technology Standard Reference Data Program Gaithersburg, Maryland 20899ģ The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. McLinden Applied Chemicals and Materials Division National Institute of Standards and Technology Boulder, Colorado April, 2013 U.S. 2 NIST Standard Reference Database 23 NIST Reference Fluid Thermodynamic and Transport Properties REFPROP Version 9.1 User's Guide Eric W.