Satisfactory quality

To be of satisfactory quality, goods must be of a standard that a reasonable person would regard as satisfactory at the time of sale (having regard to any description applied to them, the price and all other relevant circumstances).

Someone buying a new television receiver would clearly not expect the tube to give very soft and poor picture results after a few weeks.

On the other hand, someone buying a 5 year-old television receiver could not reasonably expect it to perform like a new television, although he could expect it to give the kind of service that the average television of that age and model would give.