LGTCO/LGTF Exit Exam • Set 5 Question 25 of 30
For safe cargo tank entry, toxic gas concentration must be verified below:
✓
Direct Answer
Option C: Less than 50% of the OEL / TLV
Industry safety guidelines (ISGOTT/SIGTTO) require that toxic gas concentrations must be tested and confirmed below 50% of the Occupational Exposure Limit (OEL/TLV) prior to enclosed space entry.
All Options
A
Less than the OEL (Occupational Exposure Limit)
B
Less than 80% of the OEL
C
Less than 50% of the OEL / TLV
(Correct Answer)
D
Less than 60% of the OEL
Detailed Explanation & Context
Industry safety guidelines (ISGOTT/SIGTTO) require that toxic gas concentrations must be tested and confirmed below 50% of the Occupational Exposure Limit (OEL/TLV) prior to enclosed space entry.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Liquefied Gas Tanker Cargo Operations (LGTCO/LGTF).
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