Rollei ATO 2.1 Supergraphic

Hi,
I recently purchased some Rollei ATO 2.1 Supergraphic ATO10 lith film for my 5x4 camera and I was wondering if anyone could tell me what the ISO would be for this film? I assumed that it would have an ISO of 10 but other resources have put it closer to ISO 6.

I was just wanting clarification before I start using this?

According to Maco, it's the same as their former Genius Film. The GF datasheets says its ISO 25.
However, since this is ortho chromatic, its not exactly the same, but because of that very lack of red-sensivity, you can tray develop by expection, and get what you want. You should be able to rate it 10 and get good results.

Read here: http://www.macodirect.de/rollei-sheet-filmbr102x127cm-4x510-sheets-p-1085.html

Heres a link for the datasheet of GF: http://www.maco-photo.de/files/images/TA_Genius_Printfilm_eng.pdf

Edit: I had some information wrong.

This is a stock-only film. Be prepared for availibility being more restricted than with other films.