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

MSC 85/26/Add.2ANNEX 3Page 74AMMONIUM NITRATE UN 1942with not more than 0.2% total combustible material, including any organic substance, calculatedas carbon to the exclusion of any other added substanceDESCRIPTIONWhite crystals, prills or granules. Wholly or partly soluble in water. Supporter of combustion.Hygroscopic.CHARACTERISTICSANGLE OF REPOSE BULK DENSITY (kg/m 3 ) STOWAGE FACTOR (m 3 /t)27 o to 42 o 1000 1.00SIZE CLASS GROUP1 to 4 mm 5.1 BHAZARDA major fire aboard a ship carrying these materials may involve a risk of explosion in the eventof contamination (e.g., by fuel oil) or strong confinement. An adjacent detonation may alsoinvolve a risk of explosion. If heated strongly, this cargo decomposes, giving off toxic gases andgases which support combustion.Ammonium nitrate dust might be irritating to skin and mucous membranes.This cargo is hygroscopic and will cake if wet.STOWAGE & SEGREGATIONThere should be no sources of heat or ignition in the cargo space.“Separated by a complete compartment or hold from” combustible materials (particularlyliquids), chlorates, chlorides, chlorites, hypochlorites, nitrites, permanganates and fibrousmaterials (e.g., cotton, jute, sisal, etc.).“Separated from” all other goods.If the bulkhead between the cargo space and the engine-room is not insulated to class A-60standard, this cargo shall be stowed “away from” the bulkhead.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.LOADINGTrim in accordance with the relevant provisions required under sections 4 and 5 of the Code.I:\MSC\85\26-Add-2.doc