There is one important thing to keep in mind, some of these standards (TELCOM) require that the system meet the radiated emissions requirement with the cabinet doors open. This does not help us much because the shieldig is done at the module level and not the rack level.
They may be simply designing a rack/cabinet that has "X" amount of shielding over "Y" frequency range because they don't have any understanding of their customers end use or requirements. This would be helpful information.
Get what you can and I will help interpret the information.
Hopefully this helps.
David Inman