Maritime Academy
Methane, self-heating and oxygen depletion affect cargo and access planning.
Source review: 17 October 2026 · General preparation and cleaning reference. Selecting a cargo does not authorise carriage, hold acceptance, enclosed-space entry or discharge. Use the exact declaration, vessel SMS, current schedule, manufacturer instructions and company-approved work plan.
KNOW THE CARGO · SEE THE CHECKS · BUILD YOUR FILE
Methane, self-heating and oxygen depletion affect cargo and access planning.
Choose your next step. Detailed checks and sources expand under the relevant heading.
01BEFORE LOADING
Check the coal declaration and applicable IMSBC schedule.
Open the checks →
02AFTER DISCHARGE
Assess remaining pockets and ladder areas without unsafe entry.
Open cleaning checks →
03VISUAL INSPECTION
Explore hatch undersides, framing, tank top and bilge checks on the numbered map.
Go to the map →Cargo images are illustrative. Shared hold and coating photographs introduce inspection topics; they do not show carriage of the selected cargo or completion of an operation. They are not a before/after comparison.
VileGecko · Hold photograph · ImagePerson · Industrial surface photograph · CC BY-SA 4.0. Converted to WebP, photos not cropped; small previews are shown in the interface.
This selection is not a chemical-compatibility matrix or a loading clearance; it brings the selected cargo checks together.
CARGO TRANSITION WORK FILE
Existing checks from the selected profiles are assembled here; this is not a validated transition-specific chemical recipe or carriage-compatibility decision. Entered information is not submitted or stored on the server and is lost on leaving the page.
Previous cargo is unknown. Establish cargo history and remaining product before choosing a cleaning method.
Methane, self-heating and oxygen depletion affect cargo and access planning.
Profile sources: Skuld · Coal hazards ↗ Wilhelmsen · Cargo cleaning products ↗ UK P&I · Hold preparation and cleaning, chapter 17 (2023) ↗ IMO · MSC.581(110), 2025 enclosed-space recommendations ↗ IMO · IMSBC / Grain Code distinction ↗ IMO · MARPOL Annex V / cargo residues ↗
Methane, self-heating and oxygen depletion affect cargo and access planning.
Profile sources: Skuld · Coal hazards ↗ Wilhelmsen · Cargo cleaning products ↗ UK P&I · Hold preparation and cleaning, chapter 17 (2023) ↗ IMO · MSC.581(110), 2025 enclosed-space recommendations ↗ IMO · IMSBC / Grain Code distinction ↗ IMO · MARPOL Annex V / cargo residues ↗
Statuses are a record, not a safety score, cleanliness acceptance or loading authorisation. Record a reason for not-applicable items.
Refer unresolved or unapproved items to the responsible company personnel. This file does not replace SMS permits and acceptance processes.
Profile source review: 2026-10-17 · File generated: 2026-10-18 05:11 +03
VISUAL FIELD GUIDE
Open a numbered heading to inspect the highlighted area and its check note together. The drawing does not authorise access or entry.
Check deposits that may fall back from hatch undersides and channels. Keep drainage clear.
Record: Hatch underside / channel photographDo not infer clean upper recesses and blind faces from a clean tank top.
Record: Upper-surface observation recordCheck front and back faces separately; record loose deposits, scale and flaking paint.
Record: Blind-face inspectionCheck behind rungs and supports for residue; do not use damaged access fittings.
Record: Access defect / work orderCheck plate edges and cover recesses for solids, water and impact damage.
Record: Closing tank-top photographInspect wells and protection; do not leave fine sludge within fixed piping.
Record: Well / strainer checkInclude surfaces behind pipes and guard recesses in inspection coverage.
Record: Behind-pipe / guard recordAssess an approved small representative patch; do not automatically extrapolate to the whole hold.
Record: Before/after and coating findingsSIX-STAGE WORK PLAN
These stages support preparation of the approved work plan. Dry recovery, prewashing, chemical application and rinsing sequences differ between products.
01Record: Cargo declaration + written acceptance criteria
Stop / reassess: Do not select a method with unknown residue or standard.
Write down previous residue, intended cargo and required standard. Plan water, equipment, time and waste arrangements accordingly.
Reference document ↗
02Record: Permit / measurements / equipment records
Stop / reassess: Do not enter if atmosphere, access or rescue conditions are unmet.
Under the SMS, verify risk assessment, permit, isolation, atmosphere testing, communications and rescue.
Reference document ↗
03Record: Residue type + collection / disposal route
Stop / reassess: Do not start generic water/chemical cleaning on unknown or reactive residue.
Distinguish loose solids, oily film, adherent deposits and reactive material. Establish a suitable collection method.
Reference document ↗
04Record: Product / batch + dilution + contact time
Stop / reassess: Stop for coating softening, colour transfer or an unexpected reaction.
Match exact-product SDS/PDS with coating and following-cargo requirements. Record an approved patch trial and result.
Reference document ↗
05Record: Water source + rinse / drying observations
Stop / reassess: Do not close the stage under time pressure if product/cargo conditions are unmet.
Wash/rinse only when permitted by the approved method. Check water used, remaining detergent/salt and dryness against the following cargo.
Reference document ↗
06Record: Before/after photographs + open items + acceptance record
Stop / reassess: Plan correction and reinspection if residue, odour, moisture or defects remain.
Reinspect the eight areas; retain photographs, open defects and required survey findings. Work completion is not cargo acceptance.
Reference document ↗MOVE FROM READING TO INSPECTION
Inspect upper members, sides and tank topOpen the 3 numbered photo points →Recognise peeling coating and corrosionExplore close-up inspection points →General educational photographs, not this cargo’s operation or an acceptance example. First photograph: VileGecko; second: ImagePerson, an industrial surface rather than a ship. CC BY-SA 4.0 · Photo sources and explanations
Determine the cargo’s HME status and assess cleaning agents, discharge location and applicable MARPOL Annex V/local requirements. A supplier’s non-HME statement for a cleaner does not itself authorise discharge of the complete wash-water mixture. Arrange reception facilities when required and retain the applicable records.
Open the full general hold guide →DOCUMENTS FOR THE CARGO SEQUENCE
Click a product name to open the manufacturer’s official SDS access page in a new tab. Search the exact product name and select the relevant country/jurisdiction and language where available. Match the current full SDS to the product on board. A product data sheet or Mini SDS does not replace the full SDS.
Review these products as alternatives; do not mix them. Manufacturer summaries below require the same product/formulation, compatible coating and company-approved work plan. Current full SDS/PDS takes precedence; a summary alone is not application approval. Reviewed 17 October 2026.
No previous cargo selected: preloading residue-cleaning products cannot yet be identified. Any documents below concern the intended cargo’s own preparation/after-discharge stages.
Wilhelmsen / Unitor
Heavy-duty alkaline cleaner for oily/dirty residues from coal and petcoke.
The manufacturer identifies epoxy-coating use and excludes zinc coatings. Concentrate may react with aluminium, zinc, tin and their alloys. Confirm the exact coating system and current SDS.
Product to search for: CargoClean HD
Wilhelmsen / Unitor
Water-resistant temporary barrier designed to reduce cargo adhesion to hold surfaces.
Not the same product as Slip-Coat. Follow the manufacturer’s clean/dry surface, coating and film-drying requirements. Plan subsequent barrier removal as well as cargo-residue cleaning.
Product to search for: CargoBarrier HD
Drew Marine
Heavy-duty multipurpose alkaline hold cleaner presented by the manufacturer for coal and greasy residues.
A similar purpose does not establish the same formulation or dosage as CargoClean HD. Independently verify coating compatibility and application conditions against its current PDS and SDS.
Product to search for: HOLDBRITE XF
Ticks are cleared when you leave this page. Print/save the completed checklist to your own record system. Ticking items does not grant permission or acceptance.
Download the general hold checklist (PDF) ↓Check publication dates and later changes. Club guidance, manufacturer documents and binding schedules have different roles. This file is not a complete carriage manual.
Source review: 2026-10-17
Report a document link problem (email) →Dadaylılar Shipping
Contact our team with the exact cargo description, quantity, ports and planned dates. Enquiries are assessed against the relevant vessel’s documents and operational suitability.
