Scope and common interpretation errors
For ordinary custom-part delivery records, without promising unagreed tests or certifications.
Material certificates, finished inspections and third-party tests cover different objects and periods. Old-batch files undermine traceability; complete documents do not prove customer acceptance.
Turn the review into recorded checks
| Step | Action and evidence |
|---|---|
| 1 · Create a document index | List order, drawing revision, batch, quantity and agreed records. |
| 2 · Check applicability | Review grade, specimens, dates and coverage; do not borrow unrelated certificates. |
| 3 · Separate sending and acceptance | Record the actual sent version, recipient and customer response, listing pending items. |
A comparison to avoid misinterpretation
If the raw-material lot changed, update the applicable accompanying certificate. The same product number does not automatically justify reusing the previous COA.
Frequently asked question
Does emailing documents count as customer acceptance?
Sending, receipt and acceptance are different states.
Background and further reading
This note addresses one specific question. For broader concepts, see the related background guide.
Related question: Drawing Datums for Soft Silicone Parts: Free and Restrained States.
External references support the relevant concepts. The review steps and scenarios are independent engineering discussion guidance, not quotations from a standard or external organization. Use agreed methods, applicable document revisions and complete conditions.
Apply this to your custom part
Compare the structure with Custom Shaped Silicone Parts. Describe the application, geometry, operating conditions, quantity and problem to solve. Submit a custom-parts inquiry, or see how to send drawings and sample photographs by business email. Confirm material, dimensions, costs, testing and delivery requirements for the project.
