Reading my original post it seems a bit vague. I guess what I'm trying to ask is does anyone know of any data available for specific films (ideally, fuji 160s and 400h or kodak portra nc) that documents the level of negative density achieved given an exposure time value for some photometric (lux, footcandles, etc).

I've attached a chart from fuji on it's 160s film. Not exactly sure how to interpret the the x-axis "exposure [log H (lux-seconds)]"