Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
IM1s test with differences in temperature values at different test points. The blue line detect temperature variation in correspondence of site A; the red line is referred to the point B; cyan line to the point C and yellow line to the point O.
