Process Equipment Useful Life

[skearse]

I am trying to compile data on equipment, building, etc., useful life for asset calculations, and was wondering if there is anything out there that would provide a good starting point?

 

[CountOlaf]

Here's one from the ASHRAE pocket guide.

http://www.cdaeng.com/syscom.pdf

As such it leans towards the air-conditioning world of equipment. Hope this helps. Good luck with the balance.