CHEMICAL GYPSUM
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - International Codes - IMSBC Code – International Maritime Solid Bulk Cargoes Code – Resolution MSC.268(85) - Appendix 1 – Individual Schedules of Solid Bulk Cargoes - CHEMICAL GYPSUM

CHEMICAL GYPSUM

Description

Calcium sulphate hydrate generated as a product or by-product in the process of smelter and refinery and polyaluminum chloride. White or brown powder without smell and insoluble. In use for Gypsum-Board and Cement.

Characteristics

Physical properties
Size Angle of repose Bulk density (kg/m3) Stowage factor (m3/t)
40 μm to 1 mm Not applicable 570 to 1,170 0.85 to 1.74
Hazard classification
Class Subsidiary hazard(s) MHB Group
Not applicable Not applicable Not applicable A

Hazard

This cargo may liquefy if shipped at a moisture content in excess of its transportable moisture limit (TML). See sections 7 and 8 of this Code.

This cargo is non-combustible or has a low fire risk.

Stowage and segregation

No special requirements.

Hold cleanliness

No special requirements.

Weather precautions

When a cargo is carried in a ship other than a ship complying with the requirements in 7.3.2 of this Code, the following provisions shall be complied with:

  • .1 the moisture content of the cargo shall be kept less than its TML during loading operations and the voyage;
  • .2 unless expressly provided otherwise in this individual schedule, the cargo shall not be handled during precipitation;
  • .3 unless expressly provided otherwise in this individual schedule, during handling of the cargo, all non-working hatches of the cargo spaces into which the cargo is loaded, or to be loaded, shall be closed;
  • .4 the cargo may be handled during precipitation under the conditions stated in the procedures required in 4.3.3 of this Code; and
  • .5 the cargo in a cargo space may be discharged during precipitation provided that the total amount of the cargo in the cargo space is to be discharged in the port.

Loading

Trim in accordance with the relevant provisions required under sections 4 and 5 of this Code.

Precautions

No special requirements.

Ventilation

No special requirements.

Carriage

The appearance of the surface of this cargo shall be checked regularly during the voyage. If free water above the cargo or fluid state of the cargo is observed during the voyage, the master shall take appropriate actions to prevent cargo shifting and potential capsize of the ship, and give consideration to seeking emergency entry into a place of refuge.

Discharge

No special requirements.

Clean-up

Prior to washing out the residues of this cargo, the decks and the cargo spaces shall be shovelled and swept clean, because washing out of this cargo is difficult.

Parent topic: Appendix 1 – Individual Schedules of Solid Bulk Cargoes
Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.