387-Methanol Operations / 748
Met
h
anol
Op
erations
BOS-PRD-07.900609
Bravo flag
shall
be shown and red light in the mast at night.
Sea water
should
never be used in cofferdams or methanol tanks to reduce corrosion development. Drill
water, fresh water
should
be used instead.
All escape hatches and doors from Main deck into Propulsion Room, Stores and Accommodation
shall
be
kept closed as soon as methanol is started to be loaded on board
4
.
2
.
2 T
ank
p
re
p
aration
PV valves
shall
be inspected. PV valves shall be left in automatic to maintain a slight positive pressure inside
the tanks at all times.
Methanol tanks manholes are accessible through the cofferdam’s access trunk.
Methanol tank access
Complete the PTW enclosed space entry and open cofferdams and methanol tanks manholes.
Test the methanol transfer pump with fresh water, discharge to the bilge well during the test.
Dry the tank with clean rags if necessary.
Check that the high level and very high level (95%) alarms are working suitably.
The client
should
make a survey of the methanol tanks and give his approval for carriage of methanol.
Methanol Tank
Cofferdam
Manholes
Access
Trunk
Version 04. Original date: 22/06/2012. Version date: 31/12/2014. Valid version only on QMS site. Uncontrolled document when printed.
Procedure prepared by: BOS Head of Operations. Approved by: BOS Head of Operations. Validated by: BOS Quality Representative.
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