I would advise getting /locating / finding knowledgeable (expert) sources on ferro
Not likely, but possible, that the information you seek will be located here. I do however think you will get more in the way opinion and conjecture.
The only thing I will add to that is take it seriously, unlike other materials I suspect ( take note, I suspect, not super sure) that when critical failure occurs (if it does, once again I cannot say it will) that it will occur quickly and may be catastrophic.
Wishing you the very best of luck.