Thermal Condutivity In Relation To Fire Wall Testing By U.l>

Hi,

I am an architect who works in Engineering (I know!) and performs R&D for the steel manufacturing industry. I have worked with Thermal Conductivity in relation to building envelopes, various materials, etc.
I am trying to determine if there are Thermal Conductivity Calculations available to 'estimate' the temperature gradient across a partition subjected to fire testing by Underwriter's Laboratory. We will be attempting to achieve a 2-hour Fire Wall Rating using ASTM E119/U.L. 263 testing standards on our prototype Security Detention Wall System. This standard tests our 10-feet by 10-feet partition assembly in a furnace, subjected to incrementally higher temperatures over a period of 2-hours, with the maximum temperature reaching 1,850 degrees Farenheit.
I assume the 'calculations' and thermal/material considerations will be more complex than computing standard heat flow through a building envelope. I would like to be able to use some sort of calculation as a check to estimate the performance of our partition design pursuant to the test standards indicated above.
I have heard that there is a research lab in Canada that uses some kind of calculations like this, but their work is privately funded and they cannot reveal any R&D in that area. Is there any publically available information on this, to estimate fire performance of materials prior to testing?
Any help you can provide would be greatly appreciated!