What the worksheet is for
A golden sample is the physical reference both sides accept before mass production begins. It is not a product photo, a drawing printout or a verbal agreement; it is one object, kept under stated conditions, that everyone measures against. The worksheet below does two jobs. The first half fixes the sign-off fields for that one sample. The second half fixes the alignment fields that let three quotations be compared honestly. Without the first half, a buyer approves a photograph. Without the second half, a buyer compares three numbers that were not built on the same basis.
The stakes are larger than they look. A sample can clear the outer guard gap while the production tool opens it slightly at the rim. A sample can sit comfortably on a clamp bar that the retail channel specifies with a different diameter. A sample can carry a battery-bay seal that a cleaning instruction later tells an owner not to disturb. Recording the fields at sign-off does not prevent drift; it makes the drift visible, and it gives the buyer the reference needed to argue for a correction before the container is loaded.
Golden sample fields to record
The sign-off list should be exhaustive about the parts an animal can reach and about the parts a user touches. Comfort and ventilation claims are easy to write and hard to defend unless the structural fields behind them are recorded. This is the same discipline the Guard Gap on a Pet Fan glossary entry applies to one opening, and the same discipline the Chewable Contact Areas article applies to every surface a tooth can close on.
Golden sample sign-off table
| Field | What to capture | Record to request |
|---|---|---|
| Appearance | Finish, colour match, flash, scratches | Signed sample record with dated photos |
| Guard gap re-measure | Through-gap and access-gap positions on this sample | Gap measurement sheet naming the probe |
| Battery bay seal | Seal type, seam path, disassembly limit | Seal structure note and bay drawing |
| Chewable contact areas | Material of every reachable part | Material declaration list |
| Clamp retention | Bar diameter tested and the retention method | Retention test note with conditions |
| Noise and airflow | Level and airflow at stated conditions | Raw test log with distance and setting |
| Accessories and packaging | Contents, label, inner and outer packing | Packing list and artwork proof |
| Retained sample | Storage conditions and retention period | Sample retention note with owner |
Each column exists for a reason. The capture column describes what the buyer observes or is told. The request column describes the document that carries the observation. A field with a blank request column is a field the supplier can change later without a trace. A field with a blank capture column produces a document nobody can act on. Both columns are needed before the sample is signed.
Three-quote alignment
The second half of the worksheet turns a three-quote exercise into a controlled comparison. Each line below should be identical in structure across all three quotations. When it is not, the difference is a scope difference, not a price difference, and it should be resolved before the buyer ranks the three numbers.
Quote alignment table
| Quote line | What must match across the three quotations |
|---|---|
| Unit price basis | Tax treatment, delivery term and quantity break |
| Packaging | Inner packing, outer carton, label and artwork |
| Tooling | Mould cost, ownership and amortisation basis |
| Certification | Document fees and who holds the report |
| Payment and delay terms | Payment milestones and the remedy for a missed window |
| Capacity and lead time | Batch size, ship window and split-shipment rule |
The alignment table is deliberately unfriendly to quick decisions. It asks the buyer to confirm what the price includes before the buyer uses the price. A quotation that separates mould cost from unit cost is not wrong; a quotation that is silent about it is. A quotation that quotes a peak capacity without a batch size is not comparable to one that quotes an average. The worksheet forces the question while the answer is still cheap to obtain.
Boundary: a sample is not a promise
The clearest mistake in sample sign-off is to regard the signature as the end of the argument. It is the start of the record.
Sign-off ≠ certification. A signed sample is an agreed reference object. It is not a test report, and it does not establish that the production batch meets any third-party requirement. The certification documents are a separate request, covered by the CE, FCC and UKCA file list.
Sample ≠ production. The object on the bench was produced under one set of tolerances, one mould state and one inspection moment. The article that leaves the line later can differ for ordinary reasons. The sign-off should state how the retained sample will be used to judge those differences.
Signed sample ≠ field performance. A sample that passes a gap check or a retention note does not describe what the fan does over a long day in a moving stroller or a humid crate. It describes one object at one time.
Records that carry the decision
The buyer should hold the sign-off record with the quotation, not in a separate folder. The record should name the sample, the person who measured each field, the instrument used where an instrument applies, the positions measured, the observed value and the acceptance criterion. It should also carry the drawing revision the sample was built to. Where the gap measurement sheet and the housing drawing describe the same opening differently, the buyer inherits that discrepancy at approval.
For the battery-bay seal, request the seal structure note and the bay drawing, and record the disassembly limit in writing. For the chewable contact areas, request the material declaration list and keep it beside the sample record. For clamp retention, request the note that states the bar diameter tested and the retention method. For noise and airflow, request the raw log with distance and setting stated, because a level without conditions is not a value a buyer can reuse. This evidence discipline is the same one the Noise and Airflow Test Conditions article builds into a comparison.
A record without an owner can be produced after a dispute has started. Ask who signs it and where it is kept.
Five questions to put to the supplier
- Which drawing revision is this golden sample built to, and is that revision the one the quotation prices?
- Where on the guard is the gap re-measured, with what probe, and on which sample?
- What is the battery-bay seal type, and what disassembly is permitted before the seal is disturbed?
- On which bar diameter was clamp retention checked, and under what condition was the fan loaded?
- Which line items in the quotation cover tooling, certification and packaging, and who holds each document?
Where this sits next
The buyer who has not yet sent the inquiry should start with the RFQ Template for Pet Cooling Fans so the sample is requested against the same fields that were priced. The mount-side questions, such as which clamp or hook form is being evaluated, are in Clip vs Hook vs Tripod. The material-side questions, including chewable contact areas, are in Chewable Contact Areas: Material Declarations. The battery-bay questions are in Battery Bay Seals on Pet Fans. Request a tailored quotation and sample evaluation through contact and we will map the missing fields.
Filed under the Pawluno pet-comfort programme. Illustrative specifications; confirm chew, clamp and battery-bay tests with the supplier.