Dose for whites is 3-7g/hL.
Dose for whites is 3-15g/hL.
My notes on tannin riche:
3.5g tannin riche = 1T; 1tsp = 1.167g; 1tsp/3gal is 10g/hL
So off the top of my head, for a red wine, the range would be ~1/2 to 3 tsp for 6 gallons. I've only used it on elderberry so far, and I used 1tsp/3gallons.