Woodchips
WOODCHIPS
Schedule source MSC.539(107), Annex 9, Appendix 1, IMSBC Code Amendment 07-23 · pages 458, 459
Description
Natural timber mechanically chipped into the approximate size of a business card.
Hazard
This material possesses a chemical hazard. Some shipments may be subject to oxidation leading to depletion of oxygen and increase of carbon dioxide in cargo and adjacent spaces. With moisture content of 15% or more this cargo has a low fire risk. As the moisture content decreases, the fire risk increases. When dry, woodchips can be easily ignited by external sources; are readily combustible and can ignite by friction. A condition with complete depletion of oxygen may be present in less than 48 hours.
Stowage and Segregation
Segregation as for class 4.1 materials.
Hold Cleanliness
No special requirements.
Weather Precautions
No special requirements.
Loading
Trim in accordance with the relevant provisions required under sections 4 and 5 of IMSBC Code.
Precautions
Entry of personnel into cargo and adjacent confined spaces shall not be permitted until tests have been carried out and it has been established that the oxygen level is 20.7%.* If this condition is not met, additional ventilation shall be applied to the cargo hold or adjacent enclosed spaces and re-measuring shall be conducted after a suitable interval. An oxygen meter shall be worn and activated by all crew when entering cargo and adjacent enclosed spaces. In dry weather, dust which settles on deck will dry out quickly and is easily ignited. Appropriate precautions shall be taken to prevent fire.
Ventilation
Ventilation of enclosed spaces adjacent to a cargo hold before entry may be necessary even if these spaces are apparently sealed from the cargo hold. * Refer to Revised recommendations for entering enclosed spaces aboard ships (resolution A.1050(27)).
Carriage
No special requirements.
Discharge
No special requirements.
Clean-up
No special requirements.
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