I've read lots of mail on PSI- best etc- also the fact that PSI changes with drop/rise in temp-
Q Is 2 PSI change per 10 deg still the "standard"

What is the "normal starting temp at what my tires should be tested at 65 deg 72 deg

The word around here is 1 PSI for every 10 degree change, and 1 PSI loss per month as well. "Cold temp" would be 70 degrees farenheit.

Moral of the story: Check your pressure weekly