AWWA C207 Class D flanges

[bck2ftr]

I have following Item to be procured:
" Flange - Plate, Carbon Steel Per Indian Standard IS 2062 Grade B, 10 Bar WorkingPressure, Per AWWA C207 Class D"

However in the AWWA C207 standard Class D stands for 175-150 psi.
It does not mention 10 Bar.
Should I procure as 150 psi flange?

 

[rconner]

10 bar = 145 psi