Agitate for the first minute, then stand for 20 minutes, agitate for 10 secon...
Recipes & dev times using Developer Tetenal Ultrafin Plus
Kodak Tri-X 400 in Tetenal Ultrafin Plus 1:4
9 minutes, 45 seconds at 22°C/71.6°F
Kodak Tri-X 400 in Tetenal Ultrafin Plus 1+4
5 minutes at 20°C/68.0°F
Kodak Tri-X 400 in Tetenal Ultrafin Plus 1+4
7 minutes at 20°C/68.0°F