There is NO WAY 800+ normal passengers can be evacuated from the A380 within 90 seconds.
Of course, Airbus will presumably recruit company employees and specially recruited atheletes for the test, all with instructions to evacuate the airplane within 90 seconds -- or else. There won't be any elderly, children, or handicapped persons among them.
That will hardly be a fair test, however. I hope the FAA judges the test accordingly.
Oh hell, 800 people in 90 seconds? How are they going to manage that without people getting trampled? How do you even simulate that? If they know there is no danger then the test wont be accurate.
Actually, the FAA and EASA (formerly the JAA) have strict requirements for the evacuation tests involving the number of elderly and children that have to be involved. Don't know about the handicapped, though. I believe it is done in the dark too. They even throw some luggage in the aisles to simulate the mess likely to be on board following an crash. It's not all favorable to the manufacturer. They can't use all 125 LB teenage sprinters for the test.