{ 1 } - be testable by sense experience.
{ 2 } - have actually been tested by sense experience.

To be empirical, a statement must be able in principle to be tested by experience. But it doesn't have to have been actually tested.

Take the statement "There is ice on the planet Pluto." This is empirical, since it could in principle be tested by experience, even though we haven't yet actually tested it. So logical positivists would say there's an objective fact about its truth -- either the statement is true or it is false -- even though we don't yet know if it's true.