Marine urea and AUS40 guides
Practical AUS40 marine urea guides: procurement, port-call planning, transfer, storage, ISO 18611 documents and consumption calculations.
Procurement & port calls
How to order AUS40
From AUS40 enquiry to vessel delivery: confirm your quantity, port call, batch documentation, commercial terms and receiving arrangements.
Read guideSupply planning & recurring orders
Plan AUS40 procurement around vessel requirements, batch documents and Indian port calls, from a single delivery to recurring fleet supply.
Read guideAUS40 port-call assessment
Prepare an AUS40 delivery enquiry with berth or anchorage, vessel timing, access, transfer connections and agent details.
Read guideAUS40 delivery & transfer planning
Plan AUS40 road or barge delivery and vessel transfer. Confirm terminal access, pump approval, cargo-operation restrictions and receiving arrangements.
Read guidePlan AUS40 supply before ECA entry
A pre-voyage AUS40 checklist: confirm the vessel requirement, calculate stock needs and arrange supply during an Indian port call.
Read guideProduct & onboard use
What is AUS40 marine urea?
AUS40 is a 40% aqueous urea solution for marine SCR systems. Learn its purpose, product standard and the checks needed before procurement.
Read guideAUS40 product specifications & documents
Understand AUS40, ISO 18611 and the batch quality documents to check before ordering marine urea for a vessel SCR system.
Read guideIS 17661 and AUS40 marine urea
IS 17661 (Part 1):2022 is the Indian Standard for AUS40 marine urea. What it covers, how it relates to ISO 18611, and what to check on your batch CoA.
Read guideAUS40 vs AUS32: choose the OEM-specified reagent
Compare AUS32 and AUS40 concentrations and standards. Use the reagent approved for your engine/SCR system, not a substitute based only on vessel type.
Read guideAUS40 storage, handling & shelf life
Keep AUS40 traceable and protected from contamination. Check batch-specific shelf life, storage conditions and handling instructions before use.
Read guideTechnical planning
AUS40 consumption & supply calculator
Calculate a planning quantity from your engine load, SCR operating hours, entered dosing rate, reserve and usable onboard AUS40 stock.
Read guideHow marine SCR systems use AUS40
A practical overview of marine SCR, urea dosing and consumption planning for technical teams and marine procurement.
Read guideIMO Tier III & marine NOx: procurement context
Understand the distinction between engine NOx requirements and AUS40 product quality, and the documents to check for voyage planning.
Read guideTurn the plan into a quotation.
Send your port, quantity and call window. We will work through the supply options with you.