Does anyone know if this fixer can be used on films BESIDES Tmax films ... as in Tri-X, Delta 100 ...

everything I can find about it says that it works fine for paper and on Tmax films ... but it says nothing about other films.

This stuff is eligible for free shipping on Amazon and I'm trying to round out an order, and I need more fixer and everything I've ever used from PF has been top notch.