Just found the answer.
The California Building Code has a clear definition of F and T which is where the fluid pressure and thermal reactions are to be included.
We are providing supports for pipes with thermal and fluid loads. When applying ASCE 7-05 load combinations, what part of the load combination shall we apply the thermal and fluid reactions.
It is clear where we apply the Gravity and seismic loads but for internal fluid pressures and thermal...
It depends on the many factors.
1.0 Is the slab a roof slab or a floor slab?
2.0 Is the area you are hanging from located at exit corridors above, the loads at exit corridors are typically higher than at classrooms.
3.0 How are is the slab spanning. Is it supporting other heavy items above...