When it comes to fire or earthquake or flood, depending on your facility and proximity to the "event" the best course of action would be to either A) send samples of everything out for testing or B) condemn it all (check with higher up----see what the insurance provisions are for coverage then base your exercise off of that. It doesn't make any sense to spend $$$ on testing, if corporate will just bin it all anyway
You can google frequency and severity of these kinds of occurrences for your area, and include those stats in your program.....if none of above have occurred close to you (within say 100 km) then it's a non issue
If your in California, different altogether, they get all 3!