\B3.0  LIMITATIONS\b

	\B3.1  Physical Properties\b

	Natural gas properties are limited to:

			0.55 <= SPGG < 2.0

			1.05 <= TEMPRD < 3.0

			0  <= PRSPRD < 30

	Liquid correlations used here should be within the following limits:

			14.696 Psia < PRS < 6000 Psia

			32 deg F < TEM < 250 deg F

	In addition the oil properties are limited by a specific oil gravity
	range of:

			0.63 < SPGO < 2.0

	and water properties are limited by a maximum salt-content:

			0 % < NaCl < 25 %


	\B3.2  Orifice Limitations\b
   
	For specifications regarding tolerances and restrictions to the 
	orifices themselves, length of pipe preceding and following the 
	orifice, and tapping points, you are advised to check the standards 
	(Ref. 1, 2).
 
	\UANSI/API 2530-1991, Part 3 (AGA-3)\u

	The beta ratio, BETA (orifice to tube diameter ratio, BETA = OD/PID) 
	is limited as follows:

	Flange taps:    0.15 < BETA < 0.7
	Pipe taps  :    0.20 < BETA < 0.67

	These limits do not apply for restriction orifices.

	The limitations on pipe diameters and orifice diameters are:

			1.667 in < PID < 29.25 in
	  
	or nominal bore lines, PipeD:
	     
			2.0 in < PipeD < 30 in
	  
			0.250 in < OD < 21.5 in