UN 1361 UN 1361
UN 1361 is the United Nations dangerous-goods identifier for "Carbon, animal or vegetable origin" — the classification under which coconut-shell shisha charcoal briquettes are shipped by sea. Cargo declared as UN 1361 is assigned to IMDG Code UN 1361 Class 4.2 (spontaneous combustion), Packing Group III, and since IMDG Amendment 42-24 (mandatory 1 January 2026) must be carried as declared dangerous goods under Special Provision 978 — the self-heating test no longer exempts it.
Detail: What UN 1361 means for your shipment →
UN 1362 (contrast) UN 1362
UN 1362 is the UN identifier for "Carbon, activated" — a distinct classification covering activated carbon engineered for filtration and gas adsorption. Activated carbon and shisha charcoal share a precursor (coconut shell) but differ in process and end use: UN 1362 cargo is also IMDG Class 4.2 but follows a different exemption pathway. Misdeclaring shisha charcoal as UN 1362 is a common compliance error rejected by surveyors and carriers.
Class 4.2 (spontaneously combustible) IMDG Class 4.2
IMDG Class 4.2 is the hazard class for substances liable to spontaneous combustion — materials that may heat up in contact with air and ignite without an external ignition source. Coconut-shell UN 1361 briquettes ship in Class 4.2, Packing Group III; they are weathered after carbonization, which lowers the self-heating tendency at source. Since IMDG Amendment 42-24 a passing self-heating test no longer exempts the cargo from dangerous-goods carriage.
Detail: Is charcoal dangerous goods? →
Packing Group
Packing Group is the IMDG severity tier (I = high, II = medium, III = low) assigned within a hazard class. UN 1361 coconut-shell charcoal is assigned at least Packing Group III — the lowest severity within Class 4.2 — without testing; under Special Provision 978 it is carried as declared dangerous goods regardless of the self-heating test result.
Detail: UN 1361 classification and cargo details →
SP 978 (Special Provision) SP 978
SP 978 is the IMDG Code Special Provision, introduced by Amendment 42-24, that governs how UN 1361 carbon is carried by sea. It replaced the former Special Provisions 925 and 223 and removed the self-heating test-out: coconut-shell charcoal must now be declared as dangerous goods (Class 4.2, Packing Group III) and meet SP 978's weathering, packing-temperature, headspace, and declaration requirements. There is no compliant non-DG route.
Detail: What SP 978 requires →
IMDG Amendment 42-24 IMDG 42-24
IMDG Amendment 42-24 is the revision of the International Maritime Dangerous Goods Code adopted by the IMO and mandatory from 1 January 2026. For UN 1361 it withdrew Special Provisions 925 and 223, introduced Special Provision 978, and removed the self-heating test-out — so coconut-shell charcoal must now be carried as declared dangerous goods. Bookings from the effective date must comply with SP 978.
Detail: What changed for charcoal in 2026 →
Self-Heating Test (Test N.4)
Test N.4 is the United Nations Manual of Tests and Criteria procedure for measuring whether a substance is liable to self-heating: a sample is held at an elevated temperature in a circulating-air oven and observed for self-heating. Since IMDG Amendment 42-24, a passing Test N.4 result no longer exempts UN 1361 charcoal from dangerous-goods carriage — the report is supporting hazard evidence, not a route to non-DG status.
Detail: The self-heating test's role after 2026 →
Dangerous Goods Declaration (DGD) DGD
A Dangerous Goods Declaration is the shipper-signed document that classifies a consignment under the IMDG Code, naming the UN number, hazard class, packing group, packaging description, and the responsible party. The DGD travels with the bill of lading; a single error (wrong UN number, missing SHT reference) is the most common reason a container line refuses or short-ships a UN 1361 booking.
Detail: DGD template for UN 1361 →
Weathering
Weathering is the controlled rest period between completion of carbonization and loading of finished briquettes, during which the residual reactive carbon surface oxidizes and the material's self-heating tendency falls. It is recorded in the QC log and is one of the Special Provision 978 controls that reduce the self-heating risk at source.
Detail: Production process and weathering window →
Vanning Certificate
A Vanning Certificate is a third-party declaration that a shipping container was properly stuffed according to the IMDG Code — covering segregation, weight distribution, dunnage, and headspace. Most carriers and destination ports require a Vanning Certificate for UN 1361 cargo; the surveyor witnesses the stuffing and seals the container.
Detail: Vanning Certificate sample →
Headspace Rule
The headspace rule is the Special Provision 978 requirement that a minimum void space be left in the container (CTU) above UN 1361 charcoal, so heat and any residual outgassing during the voyage are not confined. Headspace is verified at vanning and is among the items a Vanning Certificate attests to.
Detail: SP 978 headspace and stowage rules →
FCL vs LCL
FCL (Full Container Load) and LCL (Less than Container Load) describe how cargo is consolidated for sea freight. UN 1361 shisha charcoal ships FCL only — Class 4.2 dangerous goods cannot be co-loaded with non-DG or differently-classed cargo in an LCL groupage container. Our minimum order is 18 tons (one 20ft container) for that reason.
Detail: Why UN 1361 ships FCL only →
Material Safety Data Sheet (MSDS / SDS) MSDS / SDS
A Material Safety Data Sheet — now commonly a Safety Data Sheet (SDS) — is a standardized document describing a product's hazards, safe handling, and emergency measures. For coconut-shell charcoal it supports the UN 1361 dangerous-goods classification and is requested by carriers as hazard evidence.
Detail: What the MSDS supports for UN 1361 →
Verified Gross Mass (VGM) VGM
The Verified Gross Mass is the total weight of a packed container — cargo plus tare — that the shipper must declare to the carrier before loading under the SOLAS Convention. Charcoal's high density makes an accurate VGM critical to avoid overloading the container.
Detail: Container weight and stowage under SP 978 →