Quick answer: A sample is most useful when buyer and supplier record exactly what it approves. Appearance alone cannot approve unseen properties, so dimensions, grade, documentation, artwork and packaging should be controlled separately.
Define the Purpose of the Sample
State whether the sample is for visual review, dimensional fit, edge profile, surface texture, fabrication, printing or system compatibility. List properties that require separate test evidence.
Create an Approval Record
Label the sample with product name, revision, date and key dimensions. Add photos, drawings and signed comments so later changes are traceable.
Link Approval to Production
The purchase order should reference the approved specification and sample revision. Define acceptable tolerances, inspection method, packaging and the process for approving substitutions or changes.
Buyer Checklist
- State what the sample approves
- Record dimensions and revision
- Separate test evidence from visual approval
- Approve artwork and packaging
- Reference the approval in the order
Buyer FAQ
Does an approved sample guarantee every technical property?
No. Technical properties require applicable specifications and test evidence.
Related Baozhinuan Products
Explore Baozhinuan XPS insulation boards, graphite EPS insulation and waterproof tile backer boards for commercial sourcing and project applications.
Request a Specification Review
Send the application, required performance, board dimensions, quantity, customization needs, destination and delivery schedule. Baozhinuan will review the details before quotation.
Submit Your RFQProject requirements should be verified against current official standards, product documentation and local regulations.