DUBAI, UAE – October 9, 2026 – Oscar Terminals, the bulk liquid storage terminal operated by Oscar Middle East FZCO in Jebel Ali Free Zone (JAFZA), has published a new guide, Chemical Sampling and Quality Control: A Guide for Chemical Traders. The resource explains how traders, buyers and sellers can use structured sampling and quality control (QC) to keep a clear, verifiable record of product quality from load port to final delivery.
In chemical trading, a single off-spec result can turn a profitable deal into a claim, a price discount or a rejected parcel. The guide makes the case that the sample is effectively the cargo's record, and that disciplined sampling at each handover is the most reliable way to protect margins and resolve disputes quickly.
Sampling at every point where custody or quality can change
The guide maps where samples should be drawn across a typical chemical supply chain: the load port shore tank, vessel manifold and first-foot samples, ship tanks before and after loading, discharge line samples, receiving shore tanks, periodic checks during storage, and outbound loading into road tankers, ISO tanks, drums or IBCs. Comparing these samples lets parties pinpoint whether a quality issue originated with the supplier, the vessel, the shore line or the storage tank.
It also outlines recognised sampling standards, including ASTM E300 for industrial chemicals, ASTM D4057 / API MPMS Chapter 8.1 for manual sampling, ASTM D4177 / API MPMS Chapter 8.2 for automatic pipeline sampling, and ISO 3170 and ISO 3171 for liquid hydrocarbons, along with good practice on clean containers, sealing, labelling, split samples and chain-of-custody records.
Core tests traders should agree on in advance
The guide summarises the core quality tests used in chemical trading, including appearance and colour, purity/assay by gas chromatography, water content by Karl Fischer, density, acidity, viscosity, flash point and non-volatile residue. It advises traders to agree before shipment which parameters are critical, noting that out-of-range assay or water results are usually not negotiable.
Preventing contamination at the terminal
Storage is where many quality problems can be prevented. The guide highlights the controls that matter most at a chemical terminal: tank cleaning, drying and wall-wash inspection; dedicated tanks and lines; piggable pipelines; nitrogen blanketing and inerting; temperature control; compatible materials such as stainless steel; and controlled transfers with line flushing and sealed connections.
On disputes, it recommends that contracts specify how long retained samples are kept (often 90 days or more), who holds them, which laboratory performs referee analysis, and whether load port or discharge port results are final. If a discharge result comes back off-spec, the practical step is to stop the transfer, notify all parties and keep samples sealed until next steps are agreed.
“[Spokesperson quote – to be supplied and approved by Oscar Terminals. Suggested theme: quality is protected by what happens at every handover, and our JAFZA terminal is built to keep product on-spec from vessel discharge to final delivery.]” said [Name, Title], Oscar Terminals.
About Oscar Terminals
Oscar Terminals, operated by Oscar Middle East FZCO, is a bulk liquid storage terminal in Jebel Ali Free Zone (JAFZA), Dubai, with 45,400 m³ of storage capacity. The terminal handles industrial and specialty chemicals, base oils, additives, lubricants, polyols and glycols, with dedicated tanks for Class I, II, IIIA and IIIB products. Facilities include heating, chilling, inerting and nitrogen blanketing, and a fully piggable pipeline with marine and road tanker access. Services include specialty chemical monitoring, breaking bulk and repacking with outbound sampling, toll blending and tank leasing.