noslo,
For industiral fan testing, what you need is the ISO 5801. It's a good procedure that enables you to do a full check of your vendor's actual data. I've been involved in testing acc to this procedure and it turned out rather nice as I was able to verify on a very detailed level. The ISO 5801 is a well recongnized standard and I think you can enjoy this for several hours. At least I did.
greetings from Moss
Liar