\HPROGRAM 'AGA'\h
          
          'AGA' calculates gas and liquid orifice flow meters based 
          on ANSI/API 2530, Report No. 3 - 1991 (AGA 3). 
        
          The program will size orifice plates for given design 
          conditions, find pressure drop for a given flow, or flow for
          a given pressure drop.  The standard (AGA 3) is 
          originally designed for gas orifices.  In this program it is
          also used for liquid orifices.

          The program is divided into 4 major sub-programs:

                        - normal gas orifices
                        - normal liquid orifices
                        - gas restriction orifices (critical flow orifices)
                        - liquid restriction orifices

          'AGA' lets you choose between U.S. and SI units.  The 
          gas routines (normal orifice and restriction orifice routines) 
          will perform orifice-calculations for:

                        - Natural gas
                        - Air
                        - Nitrogen
                
          For natural gas the AGA-8 Equation of State (EOS) is used for
          calculating physical properties.  For air and nitrogen the
          Redlich-Kwong EOS is used.

          The liquid orifice routines include:

                        - Oil (gas-free)
                        - Water 
                        - Methanol (MeOH)
                        - Monoethylene Glycol (MEG)
                        - Diethylene Glycol (DEG) 
                        - Triethylene Glycol (TEG)

          For MeOH, MEG, DEG, and TEG the amount of water in solution 
          (0-100 Weight %) can be given, and the program will 
          calculate the physical properties of the solution.


          The MINIMUM EQUIPMENT CONFIGURATION required by 'AGA':
             a) DOS version:
                1) An IBM PC, XT, AT or compatible computer
                2) 256 K or more of RAM memory
                3) DOS 2.0 or later operating system

             b) Windows version:
                1) A computer with 80386 processor or better (486, Pentium)
                2) 4 MB of RAM memory
                3) Windows 3.+

        
        To order send a check for $19.95 to: 
        
        B. K. Berge, 206 Cliff Ave., Valley Springs, SD 57068

        Compuserve: 101653,3544
        
        Internet: 101653.3544@compuserve.com