Meter Reference Formulas Summary

PID 1. Simple: PID reading x CF = Actual PPM present of chemical. 2. Entry team turn around: Desired reading (e.g. IDLH) on PID ÷ CF = Reading on the PID. 3. Entry team turn around based on desired LEL:  Desired reading (e.g. 25% LEL). PLEL% x 10,000 ÷ 25 = 25% LEL in PPM. [...]