So, tried to do some color tests using blue sensitive x-ray film. Unfortunately, the only objects I could find to use were some plastic color drawers and a plastic yellow bin to make a color palette which, from left to
right, orange, purple, green, red, blue, and yellow on top, was photographed them under natural light.
I was hoping to use this as a guide to pre-visualizing b&w shades in future images, but fear the outcome was not quite accurate due to the translucency of the objects and some shadowing in the scene. I'll have to find some solid color objects, and try again.