Site License 

NIST Standard Reference Database 23 

NIST Reference Fluid Thermodynamic and Transport Properties 

Database (REFPROP) 

This document is a non-exclusive, non-transferable, non-assignable and limited License 

agreement between the National Institute of Standards and Technology, U.S. Department of 

Commerce, (NIST) and ________________________________________ (“Licensee”). 

DEFINITIONS 

Site – defined as one organization consisting of one or more geographic locations. 

Named User – An individual associated with the Licensee authorized to use REFPROP. One 

REFROP license is required for each named user. The number of Named Users determines the 

site license level in section three of this agreement. 

1. GRANT OF RIGHTS, TERMS AND CONDITIONS

Upon acceptance of this agreement, NIST (“Licensor”) shall grant Licensee a non-exclusive, nonassignable and non-transferable license for __________ (number of) Named Users from 

_______________________(name of Institution) the right to use the NIST Standard Reference 

Database 23 – NIST Reference Fluid Thermodynamic and Transport Properties Database Version 

10. 

Licensee may use REFPROP Version 10, including the Dynamic Link Library (DLL) (hereinafter 

referring to the DLL distributed directly by NIST or to any other part of a compiled object 

generated by incorporating the REFPROP Version 10 source code) and related files containing 

fluid and mixture coefficients as supplied by NIST as integral parts of programs, limited to 

internal applications, developed for Institutional use only by the Licensee. 

Licensee may use revisions to REFPROP Version 10, as part of the license granted under this 

agreement, when they are made generally available to users as versions 10.x. Licensee shall not 

use a later version of REFPROP other than the version that accompanies this agreement unless 

Licensee has separately acquired the right to use such later version through a separate Site 

License agreement. 

2. COPYRIGHT AND USE RESTRICTIONS

Copyright protection of NIST Standard Reference Database 23 has been secured by the U.S. 

Department of Commerce in the United States and in other countries that are parties to the 

Universal Copyright Convention, pursuant to Section 290(e) of Title 15 of the United States 

Code. Licensee is responsible and accepts responsibility for ensuring that Licensee’s Authorized

Users comply with all copyright and usage provisions under the agreement. Under no 

circumstances or conditions shall Licensee sublicense or otherwise transfer the use of the 

Licensed Service, nor shall Licensee or Licensee’s Authorized User reproduce, distribute, 

augment, change or modify any material, including the Dynamic Link Library (DLL), source 

code, or executable files unless permission to do so is expressly granted in writing by NIST. 

Licensee and its Users may not reproduce or distribute copies of the licensed material for any 

reason or purpose, unless approved by NIST in writing prior to such use. 

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• Licensee may integrate REFPROP in internal, intranet applications to all Named

Users.

• Licensee may integrate REFPROP on Internet accessible applications providing the

application is restricted to only Named Users.

• A NIST Distribution Agreement is required for public Internet access to REFROP

including but not limited to public Internet accessible websites, IOS and Android

applications, or machine to machine communications including Application

Programming Interfaces.

Named Users specified in the License are NOT permitted to do the following:

• allow any other than Named User to use or access the database

• develop a commercial package from any portion of the database and in turn, distribute

package in any mode or medium to additional customers

• alter or modify any portion of the database

• delete or remove, in any form or format, any copyright information or notice

3. LICENSE FEES

Licensee shall be given access to the database upon full payment of the appropriate subscription 

fee and acceptance of this agreement. Licensee understands that payment will be due in advance 

in order to access the database. Licensee agrees that the license granted herein shall not take 

effect until NIST has received full payment of the appropriate subscription fee.

Site license for up to ___________ Named Users, a one-time payment is: $ ___________ 

Number of users Price Per User Price Range Calculate Payment

25 Named Users

10% discount $292 per user ------ $7,300 

26-50 Named Users

20% discount

$260 per user above 

25 $7,560 - $13,800 $260 x Users + $800 

51-75 Named Users

30 % discount

$227 per user above 

50 $14,027 - $19,475 $227 x Users + $2,450

Over 75 users flat fee $19,670 $19,670 

Existing site license customers shall receive a 50% discount off of the calculated payment 

from the above table. For example, thirty-two users is ($260 x 32) + $800 = $9,120. For site 

license renewals, thirty-two users is $4,560. 75 users and above is a flat fee of $19,670 or $9,835 

for existing site license renewals.

4. NO WARRANTY

NIST strives to deliver a high-quality database and to verify that the data contained therein have 

been selected on the basis of sound scientific judgment. However, NIST makes no warranties, 

express or implied, of any type including no warranty of merchantability or fitness for a 

particular 

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purpose. NIST shall not be liable for any damage that may result from errors or omissions in the 

database.

5. TERMINATION

Licensee may terminate this agreement for any reason, at any time. This agreement may be 

terminated by NIST in the event of any breach of the terms of this agreement by the Licensee. 

NIST shall notify the Licensee in writing of its intention to terminate the agreement for cause and 

will allow customer thirty (30) days to correct the breach after the date or receipt of written 

notification. 

IN WITNESS THEREOF, the parties hereto have affixed their signatures below:

NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY

U.S. Department of Commerce

Signature: __________________________________ 

Date: _________________________________ 

Name of Authorized 

Signatory:

Adam G. Morey Sr.

Group Leader Standard Reference Data

National Institute of Standards and Technology 

Material Measurement Laboratory

Address: 100 Bureau Drive

MS 6410 

Gaithersburg, MD 20899

Contact: 301-975-3173

LICENSEE: ____________________________ 

Signature: ___________________________________ 

Date: _________________________________ 

Name of Authorized Signatory:

Organization Name:

Number of Authorized Users:

Address:

Address:

Address:

Address:

Contact E-Mail:

Date: