Double triples grand slams?

What’s does it take to earn 
Double
Triple 
Grand slam

Grand slam is pole, win and fastest lap, i think top of practice as well?

Grand Slam is achieved when a driver 
-wins the race
-starts from pole position
-leads every lap of the race
-sets the fastest lap of the race 
Double, I think includes getting the pole and the win. No idea about triple 

I've seen a grand slam when a car leads almost no laps

Maybe, Im not entirely sure, just quoted from what I remembered and tried to verify it from Wikipedia
Edit: Nevermind, I checked the wrong source. You were right

Grand slam(triple)= pole+ win+ fastest lap

Double= pole+ win