I always thought QA meant that the front end loader was a Quick Attatch ... in other words easy to remove the entire loader from the tractor ... I thought SSQA (Skid Steer Quick Attatch) refered to the bucket and the attatchments to go on in place of the bucket.
The easiest way to determine if your bucket is SSQA is to look see if you have two levers and spring loaded pins ... pull up the levers and back away from the bucket... if so its SSQA.
Here is a picture of one side of a SSQA