Nerd Stuffs...
It looks like all the Nitrogen is in part A.
They list part A at 9.8lb per gallon at 3% Nitrogen
4,445g per 3785mL
Specific Gravity is 1.17g per mL
Each mL will have 35mg of Nitrogen
PPM is mg/L
So....3.5mL part A per Liter will give you 122PPM nitrogen