Does anyone know where one would locate a non-human primate insulin standard?

Welcome to the Website Powerartist.
Look at this link:
http://endo.endojournals.org/cgi/reprint/142/12/5220.pdf
They use a rat insulin standard. It is described at the materials and methods section. Alhough not a primate but maybe it will be good for your research.
Nir

Thank you for your input. I really am looking for specifically cyno monkey.

I think Charles River would probably have the answer for you. I know they have cyno models.

http://www.criver.com/