Pre-production sample vs production sample
A pre-production sample is prepared before the bulk run to confirm the intended product. A production sample is taken from goods actually made for the order. The names alone establish neither manufacturing method nor batch origin, and approving either does not prove the condition of the other. Cambridge China Bridge can help verify these distinctions.
Agree what the sample names mean
Put the definitions in the sample request and ask the factory to confirm them. Use ‘pre-production sample’ for an item prepared before the bulk run, and ‘production sample’ for an item selected from the actual order. Ask whether ‘production sample’ means an early line output, a piece from an ongoing run or a finished packed item.
‘Golden sample’ describes an approved reference role; it does not establish how the item was made. Keep that approval status separate from its origin. Our guide to making bulk production match the sample covers retaining the reference and controlling later production.
Record how each item was made
For the pre-production sample, ask which materials, components, tooling, machinery and manufacturing site were used. Confirm whether sample-room staff or normal production operators made it, and identify any hand finishing, substitute materials or temporary packaging. Request the intended bulk setup, but record exceptions rather than treating the sample name as confirmation.
For the production sample, ask whether it passed through the normal manufacturing and packing process. Record any extra sorting, adjustment or rework before it was sent. A specially polished piece taken from the line has production origins, but its condition may differ from the untouched goods waiting to ship.
Connect the sample to the actual batch
Give the physical item a sample identifier and connect it to the order, product revision, production batch, manufacturing date and site. Record material lots where relevant, the carton or storage location it came from, who selected it and when. Keep photographs and the dispatch record with the same identifier. Our supplier batch-record guide covers the wider record trail.
Ask your inspector or staff in China to select and label the item at the factory. Photographs of an attractive item beside cartons do not, by themselves, establish that it came from those cartons. If origin cannot be substantiated, record it as an unverified sample rather than using it as evidence of the batch’s condition.
Keep sample approval and batch decisions separate
Pre-production approval records what you accepted on that identified item, including any exceptions. It cannot show whether later goods use the same materials or maintain the same finish and function. Conversely, an acceptable production piece does not retrospectively establish how the pre-production sample was made or resolve an undocumented specification change.
A selected production piece shows the condition of that item at the time checked. To judge the presented lot, agree a sampling and inspection brief rather than relying on a factory-picked display. Our AQL sampling guide explains lot definition and acceptance decisions without treating a good sample as proof that every item is satisfactory.
Write an approval that states its limits
Name the sample identifier, specification revision, checks completed, accepted features and unresolved differences. State whether the decision allows production to start, accepts particular features or releases an identified batch for shipment. Avoid a bare ‘approved’ message. If materials, tooling, process or site change, ask for updated evidence and decide which checks need repeating.
Keep appearance approval separate from safety assessment. UK government guidance states that responsibility for product safety continues after the product is placed on the market. Retain the sample record alongside relevant inspection and testing evidence; use our laboratory sample chain-of-custody guide when sending an item for testing.
Frequently asked questions
Is a pre-production sample made on the production line?
Ask for it to use the intended bulk materials and line setup, but verify what was actually used. The label alone does not confirm the machinery, operators or manufacturing method.
Is a golden sample the same as a production sample?
A golden sample is an approved reference. A production sample describes an item’s origin in the actual order. The same item can serve both roles if its origin and approval are recorded.
Does approving a sample mean I can approve shipment?
Sample approval alone does not establish the shipment’s condition. Make a separate decision using evidence linked to the identified goods, the agreed specification and inspection brief.
What if the factory cannot prove which batch a sample came from?
Record its origin as unverified. Request selection from the identified goods with a documented collection record before relying on it as evidence of that batch.