a unless otherwise agreed, the sum of th niobium & vanadum concentrations shall be = 0.06%
b Unless otherwise agreed, 0.50% maximum for
copper, 0.30% maximum for nickel, 0.30% maximum for chromium, &
0.15% maximum for molybdenum.
c the sum of th niobium & vanadum & titanium concentrations shall be =0.15%
d Unless otherwise agreed, 0.50% maximum for copper, 0.30% maximum for nickel, 0.30% maximum for chromium,
& 0.15% maximum for molybdenum.
e Unless otherwise agreed
g unless otheriwse agreed the sum of th niobium & vanadum & titanium concentrations shall be =0.15%
