Topping-off Loading Rate

Reduced rate for the final 10 % / slack-ullage stage to allow tank-level alarms to respond and avoid overfill.

TankerLoading

Bulk loading ratem³/hReduction at topping-off%Volume to load at reduced ratem³

Topping-off rate: 2,000m³/h

Time for final stage: 24.0min

Changing the inputs requires JavaScript. The calculator above shows its default inputs and result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

Q_\text{top} = Q_\text{bulk} \cdot (1 - r)

Symbol	Meaning	Unit
$Q_\text{bulk}$	Main-stage loading rate	m³/h
$r$	Topping-off reduction	fraction
$Q_\text{top}$	Reduced loading rate	m³/h

Source: OCIMF ISGOTT 6 - Loading operations

In short

Reduced rate for the final 10 % / slack-ullage stage to allow tank-level alarms to respond and avoid overfill.

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