Membrane after 5 years, does this look bad?

[fishy408]

Decided to replace all the filters and membranes on my BRS 5 Stage RODI system.

I always was curious what the membrane would look like after 5 years ( 3years of usage and 2 years stagnant). BTW, TDM for the system was still showing 0 output but I wanted to be safe. Does this membrane look bad?

 

[xcaret]

I think it’s showing what it was meant to do.