You would have to test each link individually.
You could run tests in groups of x links. This could help you.
I ran some materials tests earlier today, and this is the most basic way to describe my problem:
I have n chains, each with x links on them. If I test each of the n chains to failure. Only the failure strength is recorded. How can I predict the mean failure strength of each chain link?
Thanks in advance to anyone who replies!