TTS / SERVICE GUIDE
100% Inspection, Piece-by-Piece Checking & Defect Sorting
Screen each unit in an agreed lot for clearly defined defects.
Request a quote
01 / WHEN TO USE IT
When every item needs checking
- A known defect needs to be screened across a lot.
- You want conforming and nonconforming units identified separately.
- Your agreed purchasing process requires individual-unit checks.
Understand the service in detail
When an order contains a known defect or a buyer needs each unit screened against a defined checklist, sample-based inspection may not answer the question. Piece-by-piece inspection examines each unit in an agreed lot for the specified points. The work can support sorting, identification and a controlled rework decision. The scope must be practical and precise: checking every unit for agreed visible defects does not mean testing every possible performance or safety characteristic.
- 01Defined defect criteria→
- 02Check each unit→
- 03Separate affected goods→
- 04Reconcile the counts
A scope guide; the actual methods and criteria are agreed for the project.
02 / A CLOSER LOOK
100% inspection needs a defined screen and controlled stock.
Open a checkpoint to see the evidence recorded and how it informs your decision.

01Set the screening rule
Define the defects or attributes checked on every item, reference photos and acceptable/reject examples.
“Check everything” is not an executable specification. Destructive or long-duration tests cannot simply be applied to every saleable unit.
02Control the flow
Separate unchecked, accepted, rejected and reworked stock; define identification and repacking instructions.
Mixing checked and unchecked units can invalidate the value of a complete sorting exercise.
03Reconcile quantities
Record opening quantities, units checked, accepted, rejected, reworked and unavailable, by agreed item grouping.
Reconciliation exposes missing units and prevents a misleading claim that all ordered goods were inspected.
04Verify rework
Define whether repaired units return through the same screen and how their status is recorded.
A repair label alone is not evidence that the original defect was removed or that rework introduced no new issue.
ILLUSTRATIVE EXAMPLE
Sorting a known label error.
- !
The situation
An order contains units with the wrong label.
- ◎
What to record
Separate accepted, corrected and rejected units.
- ↗
The next decision
Reconcile all quantities against the defined criteria.
Read the full scenario
Illustrative example: two label versions have been mixed in an order. Define the correct artwork and scan or inspect each presented unit for that attribute. Record checked and rejected quantities, isolate incorrect labels and specify how corrected goods re-enter the process. This does not automatically establish the product’s chemical safety or long-term durability.
03 / STANDARDS & REQUIREMENTS
The rule.
The scope.
The evidence.
Applicability and editions are confirmed for your product, market and project date.
100% screening versus AQL sampling
Piece-by-piece screening checks all presented units for the specified attributes. AQL sampling evaluates a lot through a selected sample; the scopes answer different questions.
Official source & scope04 / THE WORKING PROCESS
From your brief
to your next step.
01Prepare the brief
Confirm the target defect, lot size, work area and handling arrangements.
02Start the work
Agree examples of acceptable and unacceptable conditions before sorting starts.
03Examine & record
Check units and maintain separation and traceability of the agreed categories.
04Review & follow up
Reconcile counts and report findings, exceptions and any recheck requirement.
Content guide; the agreed service determines the final deliverable.
05 / YOUR DELIVERABLE
A basis for
your next decision.
Inspection and sorting results for the agreed lot and checklist.
How to use the result
Use the documented counts and findings to control rework or release the agreed categories. Confirm separately how repaired units will be rechecked and who authorises their return to the accepted lot.
06 / Discuss your project
What to send for a quotation
- Lot size, product references and known-defect photographs.
- Written sorting and acceptance criteria.
- Instructions for rejected goods, rework, repacking and identification.
Practical questions
Is 100% inspection a zero-defect guarantee?
It defines coverage of units for agreed observable attributes. Detection capability, access, test conditions and the screening rule still limit what can be concluded.
Is this the same as an ordinary pre-shipment inspection?
No. A normal sampled inspection examines selected units. Piece-by-piece work is arranged for each unit in the defined lot and checklist.