MASS UK Industry Conduct Principles and Code of Practice 2022 (V6)

19.7.4 The tank(s) should be of suitable design and construction, and have protection adequate for the service for which
they are intended. Construction and fittings should be to an appropriate standard, to the satisfaction of the RO.
Provision should be made to retain any oil leakage within the confines of the vessels hull to protect the marine
environment and any workers or crew on board partial MASS manned vessels, or any to be embarked at a later
date. Tanks should be tested to class standards.
19.7.5 When considering proposals for the transport and transfer of MGO, UN1202 and other oils, in portable tanks or
IRCC, the equivalency of MASS design should be satisfactorily addressed in the ‘practical’ context of MASS
operations. This should take account of:
n Portable tanks or IRCC should meet the requirements of the IMDG Code for the carriage of MGO, UN1202,
or oils classified as dangerous goods;
n It should be verified that the intended stowage location is designed for the carriage of cargo and that the loads
/ point loads are within design limits of the deck;
n Stability – assessment on the impact on vessels stability should be carried out and free surface effect
considered;
n “On board” filling of tanks - The filling and transfer arrangements including pipe work, transfer pumps, portable
hoses, control of transfer, tank gauging and venting would need to be to the satisfaction of the vessel’s RO
taking into consideration the following:
– Utilisation of Flexible Fuel hoses;
– Filling arrangements;
– MASS design to include hi-level and remote operator emergency cut-off capability, whilst remote spillage
sensing/reporting should be included in the Certified design;
– A Save-all is to be provided around the portable tanks and connections
19.7.6 Satisfactory securing of a portable tank or IBC in its stowage position is to be provided taking into account the
forces, directions and accelerations likely to be encountered.
19.9 DANGEROUS GOODS CLASSES
19.9.1 The title of the dangerous goods classes is given below. For fuller descriptions, the IMDG Code should be consulted.
n Class 1 Explosives
n Class 2 Gases
n Class 2.1 Flammable gases
n Class 2.2 Non-flammable, non-toxic gases
n Class 2.3 Toxic gases
n Class 3 Flammable Liquids
n Class 4 Flammable solids; substances liable to spontaneous combustion; substances which, in contact with
water emit flammable gases
n Class 4.1 Flammable solids
n Class 4.2 Substances liable to spontaneous combustion
n Class 4.3 Substances which, in contact with water, emit flammable gases
n Class 5 Oxidising substances and organic peroxides
n Class 5.1 Oxidising substances
n Class 5.2 Organic peroxides
n Class 6 Toxic and infectious substances
n Class 6.1 Toxic substances
n Class 6.2 Infectious substances
n Class 7 Radioactive material
n Class 8 Corrosive Substances
n Class 9 Miscellaneous dangerous substances and articles
19.7.7 Emergency response and contingency plans to be developed for spills, fire etc.
19.7.8 MASS remote sensing and monitoring should form part of the design risk based assessment of fuelling design
and operations.
19.8 TRANSFER ARRANGEMENTS FOR RECEPTACLES CONTAINING LESS THAN
200 KG OR 200 LITRES OF DANGEROUS GOODS
19.8.1 Receptacles should be secured within save-all (bunded) structures and any lifting to be carried out should use
appropriate purpose-built cages/equipment.
SEA-KIT International USV Maxlimer
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MASS UK Industry Conduct Principles and Code of Practice Version 6
MASS UK Industry Conduct Principles and Code of Practice Version 6 137