Fichier de dfinition des isovaleurs pour diagramme psychromtrique
 epsi 	n epsi =9
0.1	0.2	0.3	0.4	0.5	0.6	0.7	0.8	0.9	
   q'   	n   q'   =9
0.0	25.0	50.0	100.0	150.0	200.0	250.0	300.0	350.0	
   t'   	n   t'   =9
5.0	10.0	15.0	20.0	25.0	30.0	35.0	40.0	45.0	
   v'   	n   v'   =9
0.6	0.7	0.8	0.9	1.0	1.1	1.2	1.3	1.4	
   t   	n   t   =6
30.0	35.0	40.0	45.0	50.0	55.0	
