Timing creates suspicion, but not proof
When plant performance changes shortly after a new chemical batch or supplier enters service, it is reasonable to investigate the material. It is not reasonable to conclude immediately that the supplier caused the problem.
Industrial processes have many variables. A disciplined investigation protects the operation from both a genuine quality problem and an unnecessary supplier change. A useful next step is our guide on warehouse Inventory Controls for Industrial Chemicals, which looks at the related practical considerations in more detail.
Confirm exactly what changed
Identify the batch, delivery date, tank or storage location and the time the product reached the process. Check whether concentration, grade, packaging or supplier changed.
At the same time, review changes in feed, production rate, water quality, equipment and operating set points.
Review the COA against the approved specification
A certificate of analysis can show whether reported batch parameters meet the purchasing requirement. It should correspond to the delivered batch rather than a generic typical analysis.
If a critical parameter is absent, the site may need additional testing.
Check storage and transfer history
Product can be contaminated, diluted or degraded after delivery. Wrong tank transfer, residual rinse water, heat exposure, moisture or cross-contamination should be considered before assigning responsibility.
Receiving records and tank history can be surprisingly important.
Verify dosing
Pump calibration, flow, dilution, make-up procedure and operator settings should be checked. A correct product delivered at the wrong effective dose can look like a quality failure.
For solids and polymers, preparation quality can also change performance.
Compare samples where possible
A retained delivery sample, fresh supplier sample or independent laboratory result can help distinguish batch quality from process conditions.
The testing method should be relevant to the suspected failure rather than simply repeating every available analysis.
Close the investigation with evidence
If the supplier is responsible, document the non-conformance and agree corrective action. If the product is within specification and another cause is found, record that too.
This creates a stronger supplier history and prevents the same investigation from starting from zero the next time a process upset occurs.
Discuss Your Requirement With Aviv Kitov Group
Aviv Kitov Group supports industrial organisations in Ghana with specialised chemical sourcing across regional and international markets. A useful sourcing discussion starts with the actual process requirement, including the approved specification or grade, quantity, packaging, delivery location and required date. For the wider context, our guide on industrial Chemical Supply Chain in Ghana: Inventory, Imports and Logistics brings the main procurement considerations together in one place.