Ethonal flow meter

[nabtastic]

Maybe I misinterpreted something, but I was under the impression that the TTB requirement on mass flow meters was accurate to 0.1%. Have they made an exception for small/new distillers or was I reading that wrong? I ask because I haven't found anything that accurate yet. Just got off the phone with GPI and the most accurate they get is .5% ...which is probably close enough but still.

Edit: wait, is mass flow used for vapor coming off of a continuous distillation? gah! BAM is a rabbit hole..