Ammonium Nitrate UN 1942 With Not More Than 0.2% Total Combustible Material, Including Any Organic Substance, Calculated As Carbon To The Exclusion Of Any Other Added Substance
AMMONIUM NITRATE UN 1942 with not more than 0.2% total combustible material, including any organic substance, calculated as carbon to the exclusion of any other added substance
Schedule source MSC.539(107), Annex 9, Appendix 1, IMSBC Code Amendment 07-23 · pages 77, 78, 79
Description
White crystals, prills or granules. Wholly or partly soluble in water. Note: This schedule should only be used for substances that do not exhibit properties of class 1 when tested in accordance with Test Series 1 and 2 of class 1 (see UN Manual of Tests and Criteria).
Hazard
Oxidizer, supports combustion. A major fire aboard a ship carrying this cargo may involve a risk of explosion in the event of contamination (e.g. by fuel oil) or strong confinement. An adjacent detonation may also involve a risk of explosion. If heated strongly, this cargo decomposes, giving off toxic gases and gases which support combustion. Ammonium nitrate dust might be irritating to skin and mucous membranes. This cargo is hygroscopic and will cake if wet.
Stowage and Segregation
“Separated from” sources of heat or ignition (see also Loading). “Separated by a complete compartment or hold from” combustible materials (particularly liquids), chlorates, chlorides, chlorites, hypochlorites, nitrites, permanganates and fibrous materials (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-60” standard, this cargo shall be stowed “away from” the bulkhead.
Hold Cleanliness
Clean and dry as relevant to the hazards of the cargo.
Weather Precautions
This cargo shall be kept as dry as practicable. This cargo shall not be handled during precipitation. During handling of this cargo, all non-working hatches of the cargo spaces into which this cargo is loaded, or to be loaded, shall be closed.
Loading
This cargo shall not be loaded in cargo spaces adjacent to fuel oil tank(s), unless heating arrangements for the tank(s) are disconnected and remain disconnected during the entire voyage. Trim in accordance with the relevant provisions required under sections 4 and 5 of IMSBC Code.
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