(Updated on 17 Dec 2015)
Around 2003, INTERCARGO members raised their concern about excessive loading rates loading rate of iron ore cargo pouring into cargo hold. Some port requested a rate of 16000 t/hr with minimum ballast. A survey was carried out by INTERCARGO with result:
- 85% of masters indicated that they considered such a rate of loading to be beyond the safe operational limits of their vessel's manoeuvrability and hull structure
- Two thirds of respondents stated they had concerns with regard to structural stresses if loading at such a rate.
Refer to the enclosed INTERCARGO presentations of "the Speed of Loading of Bulk Carriers" in 2008 and "Design Issues for Bulk Carriers" in 2009.
Listening to Industry feedback, IMO took actions:
- On 16 May 2005, IMO issued circular MSC/Circ.1160 on Manual on loading and unloading of solid bulk cargoes for Terminal representatives;
- On 5 Feb 2015, it issued circular MSC.1/Circ.1230 on Amendments to the manual on loading and unloading of solid bulk cargoes for terminal representatives;
- In 2004, Code of Safe Practice for Solid Bulk Cargoes was adopted by IMO resolution MSC.193(79).
- From 1 Jan 2011, the International Maritime Solid Bulk Cargoes (IMSBC) Code entered into force, which superseded the Code of Safe Practice for Solid Bulk Cargoes.
Publication of UK MCA
Recommendation 46: BULK CARRIERS - Guidance and Information on Bulk Cargo Loading and Discharging to Reduce the Likelihood of Over-stressing the Hull Structure, 1997