I purchased a box of fomapan 400 shortly before a houde move 3 years ago. Removers packed our belongings (big mistake), and were a disaster. I've nboxes labels garage in the lfot and vice versa three years on. I'm still findign stuff I thoguth logn lost, including the afore mentioend box of film. It went out of date last year 2018 and obviously has been at room temeperature all this time. Anyone suggest what ASA I should expose the film at?