I always have testing reagents left over from year to year and I keep them in a controlled environment. I never know each year what is stable enough to use again next year and what I should reorder though I have some left. Can someone out there with knowledge please advise me on the shelf life in a controlled environment for the following reagents.

R-0871, R-0004, R-0870, R-0013, R-0008, R-0007,R-0009,R-0001, R-0002

Thank you for your help. I have some of all of these left over some from 2 years ago or later but I don't want to use anything old that won't give an accurate test.