1
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A sample that looks right does not prove that the production lot will stay consistent.

2
00:00:05,115 --> 00:00:08,170
First, freeze a measurable baseline.

3
00:00:08,170 --> 00:00:16,353
Put the drawing revision, material, colour, critical dimensions, functions, packaging and labels into one specification pack.

4
00:00:16,353 --> 00:00:19,729
Avoid vague language such as same as sample.

5
00:00:19,729 --> 00:00:22,963
Second, give the sample an identity.

6
00:00:22,963 --> 00:00:29,059
Record its number, production date, tooling or line, inspection results and photographs.

7
00:00:29,059 --> 00:00:34,136
After approval, the buyer and supplier should each retain the same approved version.

8
00:00:34,136 --> 00:00:37,087
Third, approval is not the end.

9
00:00:37,087 --> 00:00:43,930
A change in material, structure, process, source, packaging or labelling needs a documented review.

10
00:00:43,930 --> 00:00:51,688
If safety, regulation or a critical function may change, submit a new sample and repeat the relevant testing and approval.

11
00:00:51,688 --> 00:00:55,708
Fourth, separate sample approval from lot inspection.

12
00:00:55,708 --> 00:00:59,780
The approved sample shows what one agreed reference looks like.

13
00:00:59,780 --> 00:01:09,819
It does not prove that every production unit conforms, and it does not replace market-specific testing, risk analysis, technical documentation or certification.

14
00:01:09,819 --> 00:01:16,481
Before shipment, give the inspector the approved sample, specification pack and defect classification.

15
00:01:16,481 --> 00:01:22,603
Acceptance sampling evaluates the lot; the approved sample supplies the comparison baseline.

16
00:01:22,603 --> 00:01:26,353
Good sample approval is not one word: approved.

17
00:01:26,353 --> 00:01:35,193
It is an evidence chain with controlled revisions, measurable criteria, retained references, traceable changes and a separate production inspection.