I am not sure about the 10% fat. I know that originally I thought that ricotta that said "part skim" wasn't light enough, but I have been told part-skim is just fine.
I did find a lowfat version, even lighter than part-skim, but it was really difficult to find.
If it says part-skim anywhere on it, I think you're okay. Not sure if it helped, but good luck.