Monthly Archives: April 2017

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Predicting Meter Readings 14

LEL conversions to PPM review: LEL reading % times CF times PLEL% = ? ÷ 100 = ?% times 10,000 = ? PPM LEL % x CF x PLEL% = ? ÷ 100 = ?% x 10,000 = ? PPM 10% x 3.4x 4% = 136 ÷ 100 = 1.36% x 10,000 = 13,600 PPM

By |April 3rd, 2017|Predicting Meter Readings|Comments Off on Predicting Meter Readings 14

Predicting Meter Readings 23

In reference to question #22, you have determined that the predicted LEL is 234%. TEA has an LEL of 1.2% and a UEL of 8%. Which of the following is correct? 2.5 CF x 1.2 PLELx 234% ÷ 100 = 7.02% 1. 7% is below the LEL 2. 7% is above the UEL 3. 7% [...]

By |April 3rd, 2017|Predicting Meter Readings|Comments Off on Predicting Meter Readings 23

Predicting Meter Readings 24

In refernece to question 23, conditions are in the flammable range. What strategies must be employed? 1. vent and burn 2. personal protective controls 3. administrative controls 4. engineering controls

By |April 3rd, 2017|Predicting Meter Readings|Comments Off on Predicting Meter Readings 24

General Question 65

The action level of 25% LEL concentration to be a withdrawl point for entry teams comes from which of the following?

By |April 11th, 2017|General Q & A|Comments Off on General Question 65