P.I.D.
P.I.D.: Simple: PID Reading x CF = Actual PPM Present in Atmosphere Entry Team Turn Back: Desired Reading on PID ÷ CF = Reading on PID in PPM Predicted PID: 1300 Rule for Known Chemical PPM ÷ CF = Predicted Maximum PID Reading in PPM Obtain 10% LEL in PPM: PLEL x 10,000 ÷ 10 [...]