Global Dry Bulk Network

Tuff, Coarse

TUFF, COARSE

IMSBC GroupC
UN NumberNot set
ClassNot applicable
Subsidiary HazardNot applicable
MHBNot applicable
Physical Sizeless than 10 mm
Angle of ReposeNot applicable
Bulk Density (kg/m³)900 to 1,200
Stowage Factor (m³/t)0.83 to 1.11
Harmful to Marine EnvironmentNot set
Effective StatusNew in MSC.575(110)
IMSBC Amendment08-25
Voluntary Application From2026-01-01
Mandatory From2027-01-01
Group CClass Not applicableMHB: Not applicableNew in MSC.575(110)
Cargo photo

Schedule source MSC.575(110) · pages MSC.575(110)

Description

Porous rock of volcanic origin. Colour may vary from yellow, light brown to red, grey or black.

Hazard

Dust of this cargo is abrasive and may cause skin and eye irritation. This cargo is non-combustible or has a low fire risk.

Stowage and Segregation

No special requirements.

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

Appropriate precautions shall be taken to protect machinery and accommodation spaces from the dust of the cargo. Bilge wells shall be clean and dry and covered, as appropriate, to prevent ingress of the cargo. Persons who may be exposed to the cargo shall wear protective clothing, gloves, goggles or other equivalent dust eye-protection and dust filter masks, as necessary.

Ventilation

No special requirements.

Carriage

No special requirements.

Discharge

No special requirements.

Clean-up

No special requirements.

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