I can't really say I've ever found a 'standard' or torque or anything... "hand tight' is so variable, I mean, 98 pound weakling, or 250 pound buff body builder? and I hear people say half turn, quarter turn, nothing more than hand tight. Then 'be careful not to tighten it too much!' (which I didn't care about, until I heard "my filter sheered apart"... now I'm worried about over tightening ? (though that fear comes after these 2 filters came loose))
But again, never had this problem in 30+ years, but twice on this car within a year?! ? (maybe it's just fate or the car has a curse on it, never had a windshield crack, but twice already in this car too)