In spite of using clean sample bottles to acquire individual samples from each level (ie top, middle and bottom of each of the ship’s tanks) and clearly labelled for density calculation, why the final result may not provide the correct density value?
Direct Answer
Option C: Due to the loss of volatile fractions to atmosphere
The loss of volatile fractions to the atmosphere during sampling, especially for lighter or volatile cargoes, can alter the cargo's composition and density. This change means the sample's density may not accurately reflect the bulk cargo's density at the time of loading or discharge.
All Options
Detailed Explanation & Context
The loss of volatile fractions to the atmosphere during sampling, especially for lighter or volatile cargoes, can alter the cargo's composition and density. This change means the sample's density may not accurately reflect the bulk cargo's density at the time of loading or discharge.
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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