Could someone help me understand what is meant by
PQR Essential Variable Changes  AWS D1.1:2006    FCAW
Items 12),  16), & 17) in relation to Item 10)
My question is if we go to a smaller diameter filler  per Item 10)
Can we change Amps, and/or Volts per manufacturers recommended
Parameters or are we held to the Min/Max per the original PQR?
I am not sure what "for each diameter means" in item 12,16,17.
Thanks for your help.