As a rule, medicines must still be good a full year after their expiry date (there are mandatory lab tests with the time effectively sped up to do so). It's quite possible that these chemicals, etc could still be quite safe for even longer, however it really depends on what it is and how it's stored.
A vial of morphine kept for six months on the dash of a humvee for example could well kill you, but if that same vial was kept refridgerated and motionless...
__________________
If it moves, shoot it, if not push it, if it still doesn't move, use explosives.
Nothing happens in isolation - it's called "the butterfly effect"
Mors ante pudorem
|