A practical way to make visual surface decisions consistent between buyer, factory and inspection team.
Define the Reference Before Inspection Day
Words such as perfect, minor or acceptable do not create a shared inspection standard. Agree on the approved sample, product drawings, viewing conditions and any buyer-specific defect criteria before production is packed.
Ceramic manufacturing has natural process variation. The commercial task is to define how visible surfaces are judged and which variation the buyer will accept, rather than making an absolute promise that cannot be inspected consistently.
Use Consistent Light and Distance
Inspecting beside a dark container door, under colored warehouse lamps or with a phone torch held against the surface will produce different decisions. Establish a repeatable general viewing position and use directional light as a second check when a suspected area needs closer examination.
Divide the Product into Viewing Zones
The front, upper rim and other normally visible surfaces deserve different attention from concealed fixing areas. Define these zones with photographs or a marked drawing. This helps inspectors describe location accurately and prevents a hidden casting mark from being discussed as if it were on the front face.
Describe What You See
Record the type, approximate location and extent of an observation without guessing its cause. Useful records pair an overall product photograph with a close view and the carton or model reference. Avoid editing images in ways that exaggerate contrast or conceal context.
| Overall view | Shows model identity and where the observation sits on the product. |
|---|---|
| Close view | Shows the surface condition with scale or reference where appropriate. |
| Lighting note | Records general light or directional-light review. |
| Disposition | Uses the agreed buyer decision category, not improvised wording. |
Close the Loop on Repeat Findings
If the same observation appears repeatedly, separate affected pieces, review the production batch and agree on disposition before loading. The inspection report should make quantities traceable; a folder of close-up photos without counts is not enough for a shipment decision.
Buyer Checklist
- Keep the approved sample available.
- Agree on light and viewing conditions.
- Define visible and concealed zones.
- Record model and carton references.
- Take overall and close photographs.
- Summarize quantities by finding and disposition.
Related Product and Project References
| Product categories | Wall Hung Toilets Eco Wall Hung Toilets |
|---|---|
| Product models | TT506C TT2497 |
| Project references | volume housing projects |
| Support | OEM & ODM Quality Contact |
FAQ
Can ceramic glaze be inspected from photos alone?
Photos are useful records, but lighting and camera processing can change appearance. Important decisions should follow an agreed physical inspection method.
Why define viewing zones?
They help the buyer and inspector apply consistent attention to surfaces that remain visible after installation.
Should every surface mark be called a defect?
Use the terminology and acceptance criteria agreed for the order. Describe the observation first, then apply the documented decision rule.