Bulk Samples

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Bulk samples are also referenced as production samples or final production samples. They are samples taken from the actual bulk production run — not prototypes made before it — so that the buyer can verify that what was manufactured matches what was approved. This page defines bulk samples and their place in the sampling sequence, alongside sealed samples and pre-production submissions.

Bulk Samples by Apparel Search - Terms of Interest to the Fashion Industry

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Bulk samples are also referenced as production samples or final production samples.  Some companies refer to these as T.O.P Samples (Top Of Production) .  In summary, a bulk reference sample is a sample that is used as an example of the actual production.  In other words, a true unit of the orders final production. 
 
Items are pulled directly after they have completed the manufacturing process as a way to illustrate exactly what is planned to be shipped for a particular order.  A factory would maintain a bulk sample for their internal records, and they are also often required to provide bulk samples to the company that is purchasing the product.  If the factory is required to do testing, they would also need to provide bulk samples to the testing laboratories.
 
If you work for a clothing factory and a buyer has asked you to provide "bulk samples", the buyer is asking for you to show them a sample of one of the items you produced for their order.  They want to see the garment that you have produced and are preparing to ship.  They do NOT want to see a sample made in your sample room.  They are asking to view an exact representation of what you produced for them and plan to deliver.
 
When production begins, many buyer require the factory to present to them bulk samples / TOP Samples so that the buyers can review them to make certain that the factory is following exact specifications.  Although they most likely went thru a pre-production process, they still must evaluate the final production samples (bulk samples). The buyer will typically review all aspects of the items.  If the bulk sample is of garments, the buyer will inspect color, fabric construction, fit, packaging details, ticketing, labels, etc.
 
When referencing bulk samples of clothing, the factory would be using bulk fabric as well as bulk trimming.  All details will be from the final production run.

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You may also want to read about In-Process Quality Control

Bulk Yardage

Bulk Production

PP Samples

Salesman Samples

Sealed Sample

Bulk Samples

You may also have interest in reading about Piece Goods Inspection,  Fabric Defects and Pre-Production Submissions.

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Why the Sample Must Come From the Run

Every earlier sample in an order's life is, in a sense, a promise: the prototype promises the design, the pre-production sample promises the factory understood it. The bulk sample is the first sample that is evidence instead. Pulled at random from finished production, it can be measured against the specification, washed, worn and compared with the sealed approval sample, and any drift — shade, shrinkage, stitch quality, trim — shows up in a unit the factory cannot have prepared specially. That is why buyers insist on receiving bulk samples before authorizing shipment rather than after the goods are already on the water.

The sample also protects the factory. A bulk sample approved by the buyer before shipment records agreement that production met the standard, which narrows later disputes about chargebacks and rejections. Keeping the paperwork straight matters: which sample was sealed, which was the PP sample, and which units were pulled as bulk samples should be identifiable long after the order closes, because claims, reorders and quality reviews all reach back to them. The neighboring entries in this section — bulk production, bulk yardage and in-process quality control — describe the rest of that system.

Common Questions

What is a bulk sample?

A sample pulled from the actual bulk production run, also referenced as a production sample or final production sample. Because it comes from the run itself, it shows what is really being delivered, not what was promised at the sample stage.

How does a bulk sample differ from a pre-production sample?

A pre-production (PP) sample is made before the run to win approval. A bulk sample is taken during or after the run to verify production held to that approval. The related reading linked from this page covers PP submissions, piece goods inspection and fabric defects.

What is a sealed sample?

A sample formally approved and sealed — kept as the reference standard against which bulk production is judged. The term appears alongside bulk samples in this page's list of production-stage sample types.