Page 202 - International safety guide for oil tankers and terminals

INTERNATIONAL SAFETY GUIDE FOR OIL TANKERS AND TERMINALS

Is spread loadingาเท่านั้น---

No
50 picoSiemens/metre)
งานห้องสมุด ศูนย์ฝกพาณิชย์นาวี

Yes

Are vessel’s tanks inerted? Yes

No

Yes Is product dosed with Controls on initial
anti-static additive? flow rates for
static
Note the presence of accumulators do
---ใช้เพื่อการศึกษ
anti-static additive No y
should not be relied on (other restrictions
to relax controls may apply - see
ISGOTT 7.3.3.2)
being considered?
Yes No
rate to limit flow to ึ

Calculate maximum initial
Assess risks and agree
required controls
1 m/sec at tank inlet(s)

Can minimum initial flow No
rate be achieved?

Yes

Operation should not
Is flow controller
Yes be conducted under
installed in the shore system? prevailing conditions

No

Manually limit flow rate
to a maximum of 1 m/sec
Flow controller to limit
flow rate to a maximum
of 1 m/sec
When tank bottom is
covered and all surface
turbulence has ceased, flow
rate may be increased to a
maximum of 7 m/sec

Figure 11.1 – The Control Hazards associated with the initial loading
of static accumulator cargoes

168 © ICS/OCIMF/IAPH 2006