MSC 85/26/Add.2 ANNEX 3 RESOLUTION MSC.268(85) - US Coast ...

MSC 85/26/Add.2ANNEX 3Page 113CEMENTDESCRIPTIONCement is a finely ground powder which becomes almost fluid in nature when aerated orsignificantly disturbed thereby creating a very minimal angle of repose. After loading iscompleted de-aeration occurs almost immediately and the product settles into a stable mass.Cement dust can be a major concern during loading and discharge if the vessel is not speciallydesigned as a cement carrier or shore equipment is not fitted with special dust control equipment.CHARACTERISTICSANGLE OF REPOSE BULK DENSITY (kg/m 3 ) STOWAGE FACTOR (m 3 /t)Not applicable 1000 to 1493 0.67 to 1.00SIZE CLASS GROUPUp to 0.1 mm Not applicable CHAZARDIt may shift when aerated.This cargo is non-combustible or has a low fire-risk.STOWAGE & SEGREGATIONNo special requirements.HOLD CLEANLINESSClean and dry as relevant to the hazards of the cargo.WEATHER PRECAUTIONSThis cargo shall be kept as dry as practicable. This cargo shall not be handled duringprecipitation. During handling of this cargo all non-working hatches of the cargo spaces intowhich this cargo is loaded or to be loaded shall be closed.LOADINGThe ship shall be kept upright during loading of this cargo. This cargo shall be so trimmed to theboundaries of the cargo space that the angle of the surface of the cargo with the horizontal planedoes not exceed 25 degrees. Both the specific gravity and the flow characteristics of this cargoare dependent on the volume of air in the cargo. The volume of air in this cargo may be upto 12%. This cargo shows fluid state prior to settlement. The ship carrying this cargo shall notdepart until the cargo has settled. After the settlement, shifting of the cargo is not liable to occurunless the angle of the surface with the horizontal plane exceeds 30 degrees.PRECAUTIONSAppropriate precautions shall be taken to protect machinery and accommodation spaces from thedust of the cargo. Bilge wells of the cargo spaces shall be protected from ingress of the cargo.Due consideration shall be paid to protect equipment from the dust of the cargo. Persons whomay be exposed to the dust of the cargo shall wear protective clothing, goggles or otherequivalent dust eye-protection and dust filter masks, as necessary. Bilge wells shall be clean,dry and covered as appropriate, to prevent ingress of the cargo.I:\MSC\85\26-Add-2.doc