Go to ASTM.org and look up "abrasion testing - rope" etc.
No sense reinventing the wheel if there is already an established national/international standard test method already in effect.
Very true. I am aware of the method for yarn-on-yarn abrasion (D6611). Our method is related, but we are not testing the same thing. Did you have a specific method in mind?
I am a member. The challenge, of course, is that many ASTM rigs are too onerous for limited use. The second challenge is that they don't always measure what you want to test (there many not be an ASTM method for the characteristic of interest). In this case, for example, there are wear methods for ropes but not for chafing gear.
Some of my testing--I have some work on engine coolants coming up--follows ASTM procedure out the door. Other times the best that can be done is to copy the fundamental principles and practice good scientific method. Most often the challenge is to be certain you know what you are measuring. For example, in accelerated wear testing of rope you need to avoid heating problems, since that is a separate variable (certainly a very relevant variable in some high-load applications, but it is a separate variable).
Another factor is testing under widely varying conditions. Engine coolants, for example, are really tested only under engine operating conditions, which are relatively narrow and well understood. But rope chafe varies from high load on a sharp edge to light load against wood or something similarly benign. Clearly, there will be more than one set of tests. The reality is that cordage companies have their own methods, generally not ASTM; they each have specific interests, and so far as I have learned, no specific standard.