I come across this blog post today on one of my blogs that i follow and i recommend you to read this interesting commands that have around absorption/ absorbency ratings for incontinence products.
Diaper Secrets: How strong are you?
You should even check out his pdf file that he have created on the responds that he have received.
https://myleniumhealthstuff.files.wordpress.com/2017/01/absorption_ratings_mylenium.pdf
I wish you a happy reading :)