There are numerous organizations in the RFID industry that offer product testing and evaluation services.  Many of these offer to sell the results of their evaluations for an often hefty fee.  For individuals interested in the physics of how RFID works this information may have some value.  For most though this information has little value since it a lab environment bears no resemblance of the actual environment in which your application will be deployed.

Our recommendation are as follows:

• Gather your tagging application requirements (e.g. high temp, on-metal tags, 1m read, etc.) and focus your efforts on the top two or three tags that meet your criteria.  Purchase sample quantities of these tags and put them through the paces in your application environment.   
• Subject the tasgs to any relevant environmental extremes that exist in your environment and evaluate read performance in your environment with a reader thast will be used in your deployment. 
• Consider tag placement options and attachment methods and any impact this may have to current operations. 

In most cases this process can be completed in a day or less and the knowledge you will acquire will be extremely valuable.

When you have identified an appropriate tag you are in a much better position to determine if the project still supports your business case.  If so, move on to a small pilot...and test some more...

Testing, Testing, 1,2...Testing...1,2...