Describe Flammable Gas Measurement
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Total Pages: 33
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Training Objectives
Upon completion of this flammable gas training kit, you will be able to:
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Explain the purpose and importance of testing for the presence of flammable gases |
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Describe the conditions necessary for a fire or explosion to occur
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Explain the concepts of LEL (Lower Explosive Limit) and UEL (Upper Explosive Limit)
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Calculate % LEL of a flammable gas in the atmosphere, given the percentage concentration by volume of that flammable gas
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Calculate the percentage concentration by volume of a flammable gas in the atmosphere, given the % LEL of that flammable gas
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Explain the general operating principles of flammable gas detectors
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Describe the main factors affecting the accuracy of flammable gas detector readings
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Identify safety precautions which must be followed whenever taking flammable gas readings
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Table of Contents
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1
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Introduction
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1
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2
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Combustion
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3
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3
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Measuring the Concentration of a Flammable Gas
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6
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3.1 LEL (Lower Explosive Limit)
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7
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3.2 UEL (Upper Explosive Limit)
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13
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4
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Portable Gas Detectors
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14
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4.1 Flammable Gas Detector Technology
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15
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4.2 Limitations of Flammable Gas Technology
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17
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5
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General Operating Conditions
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19
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6
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Self-Check
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21
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7
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Self-Check Answers
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23
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