6654-20  H alfa narrow set
   2 x 2" both faces coated
   R. Gonzalez  Sept.19, 1993

   W.l       %
   6616     0.64
   6618     0.81
   6620     1.09
   6622     1.56
   6624     2.28
   6626     4.03
   6628     5.73
   6630    10.60
   6632    18.40
   6634    30.93
   6636    49.91
   6638    64.52
   6640    69.35
   6642    74.77
   6644    74.60
   6646    76.44
   6648    74.03
   6650    68.79
   6652    60.82
   6654    47.73
   6656    34.80
   6658    26.60
   6660    17.01
   6662    10.00
   6664     5.93
   6666     3.69
   6668     2.38
   6670     1.67
   6672     1.47
   6674     0.92
   6676     0.71