The minimum concentration of a vapor in air which can form an explosive mixture is called the
Direct Answer
Option C: lower explosive limit (LEL)
The Lower Explosive Limit (LEL) is the minimum concentration of a flammable gas or vapor in air, below which an explosive atmosphere will not form. This fundamental safety concept is detailed in ISGOTT and critical for gas detection and inerting operations.
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Detailed Explanation & Context
The Lower Explosive Limit (LEL) is the minimum concentration of a flammable gas or vapor in air, below which an explosive atmosphere will not form. This fundamental safety concept is detailed in ISGOTT and critical for gas detection and inerting operations.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Chemical Tanker Cargo Operations (CHEMCO).
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