Contact audioholics. I believe the owner offers consulting and testing, but it’s not free, as I’m sure you would expect. At lest discuss it with them and see if it’s possible to test for what you are looking for.
Is there a facility that test cables?
In my business as a paint contractor I had a guy working for me who claimed he had worked for a while making high end power cords for audio. I wasn't expecting much but I figured some halfway decent DYI power cords wouId be better than the stock cords I had.
When he finished them and presented them to me they seemed they were a lot more hefty than I expected. I asked exactly what I was getting for my money, a bit substantial, and he referred me to an ad for AudioQuest NRG Dragon. He claimed he couldn't relate to me any of the materials or build because of a NDA he signed when he left who he was working for.
We parted ways and it was not amicably. He made me question my decision in buying them after he left my employ on whether I actually got what I was paying for. I'm not sure if they are a source cord or high current cord and I am not sure if they measure what a well made cord should. Is there any mfg or other entity where I could get them tested? If they match up then I got a great deal as I have three 3' and one 5' power cord. Any help appreciated!