It amazes me that in the year 2023, 30 years after the PRCS standard was promulgated, we still have Entry Supervisors who can NOT explain:➡ Why Oxygen Concentration must be measured FIRST (then LEL and then Toxicity)➡ The Correction Correlation with the LEL readings➡ Why OSHA defined the LEL of 10% as a Hazardous Atm...
