\B1.0  INTRODUCTION\b
	
	  B. K. Berge is a member of the Association of Shareware 
	  Professionals (ASP).  ASP wants to make sure that the 
	  shareware principle works for you. If you are unable to 
	  resolve a shareware-related problem with an ASP member by 
	  contacting the member directly, ASP may be able to help. 
	  The ASP Ombudsman can help you resolve a dispute or problem 
	  with an ASP member, but does not provide technical support 
	  for members' products. Please write to the ASP Ombudsman at 
	  545 Grover Road, Muskegon, MI 49442 or send a CompuServe 
	  message via CompuServe Mail to ASP Ombudsman 72050,1433.

	  Users of 'ISO' must accept this disclaimer of warranty:
	  This program material is supplied as is.  The author disclaims
	  all warranties, expressed or implied, including, without 
	  limitation, the warranties of merchantability and of fitness
	  for any purpose.  The author assumes no liability for incidental 
	  or consequential damages in connection with or arising from the 
	  furnishing, use, or performance of this program material.

	\B1.1  General\b
	  
	  'ISO' calculates gas and liquid orifice flow meters based 
	  on International Standard ISO 5167-1:1991 (Ref. 1).
	
	  This is a 'shareware' program and NOT a 'freebie'.  You are
	  expected to register if you continue using the program for 
	  more than 30 days.  However, the program does not have any 
	  'nag-screens' to encourage you to register, and will function
	  with no limitations if you do not register.  Upon registration 
	  you will receive both the DOS and Windows versions of the
	  program supplied on two (2) floppy disks.

	  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 (API-2530) is 
	  originally designed for gas orifices.  In this program it is
	  also used for liquid orifices.


	\B1.2  Program Requirements and Overview\b

	  The minimum equipment configuration required by 'ISO':
	     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.+


	\B1.3  Program Information\b

	  The program is divided into 4 major sub-programs:
			
			- normal gas orifices
			- normal liquid orifices
			- gas restriction orifices (critical flow orifices)
			- liquid restriction orifices

	  'ISO' 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.