Direct answer
Pre-Production Sample Approval Checklist
A pre-production sample should represent the intended BOM, materials, color, artwork and process closely enough to release production. Any known difference must be written, risk-assessed and approved rather than assumed.
Apply it to the exact formula, product code, component set, filling process, destination and quantity. Supplier guidance does not replace final filled-product approval by the responsible party.
Decision Table
Use the same decision areas and required outputs when comparing alternatives so price, samples and evidence refer to the same scope.
| Area or route | What to define | Required output |
|---|---|---|
| Identity | Product code, revision and component BOM | Signed sample record |
| Appearance | Color, gloss, print, defects and assembly | Physical limit sample |
| Function | Fit, torque, leakage, dose and actuation | Measured acceptance result |
| Production | Packing, labels, inspection and deviations | Release checklist |
Buyer Checklist
- 01
Confirm product code and revision
- 02
Match every component to the approved BOM
- 03
Check dimensions and assembly
- 04
Approve artwork, color and finish physically
- 05
Record functional test results
- 06
Sign, date, label and retain the reference sample
Samples and Evidence
Appearance or Stock Sample
Use it to assess scale, handling and basic component fit. Record any difference from the intended production material or process.
Decorated Sample
Approve color, print, coating and finish on the intended substrate using a retained physical reference.
Functional Validation
Define formula, conditions, sample count, method and acceptance criteria for leakage, dose, torque or other relevant risks.
Release Record
Link the approved sample, BOM, artwork, tests, packing and deviations to the exact product code and revision.
Frequently Asked Questions
Is a prototype the same as a pre-production sample?
Not always. A prototype may use different tooling, material or process. Record exactly what it represents and what remains open.
Can production start with conditional sample approval?
Only when every deviation, risk, corrective action and responsible approver is written clearly. Unrecorded assumptions should not release production.
How many approved samples should be retained?
Retain enough identified references for buyer, supplier and inspection use according to the project agreement.
What if mass production differs from the sample?
Apply the written tolerance and defect standard. Material deviations should be contained, investigated and approved before shipment.
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