How to request and evaluate a product sample from a supplier

1. The short answer

Use this sequence:

1. define why you need the sample;
2. send a versioned product specification and test plan;
3. identify the sample, supplier, date, model and changes;
4. record the shipping and receiving condition;
5. inspect appearance, dimensions, function, packaging and labelling;
6. decide whether independent testing or category review is needed;
7. record every change and approve a reference sample; and
8. carry the approved version into the purchase order and inspection plan.

The product-specification guide owns the requirements document. The first production-order guide owns the handoff from approved sample to production control.

2. 1. Define the purpose of the sample

Different samples answer different questions. State the purpose before you ask the supplier to send one.

Write the decision in one sentence:

This sample is to confirm the 500 ml bottle, cap fit, label placement, carton dimensions and printed instruction version before the first production order.

That sentence is more useful than “please send your best sample”.

3. 2. Send a written specification and test plan

Attach the same document you will use for the quotation and purchase order. It should state:

• product identity, model and version;
• intended use and customer;
• materials, dimensions and tolerances;
• colour, finish, function and performance requirements;
• accessories, components and battery facts where relevant;
• packaging, label, barcode and instruction requirements;
• reference photographs, drawings or an existing sample;
• acceptance criteria and measurement method;
• questions the supplier must answer; and
• changes the supplier must not make without written approval.

Separate requirements into:

The status matters. A supplier may solve a preferred detail while missing a mandatory dimension. A sample scorecard should not hide that difference.

4. 3. Keep the sample identity intact

Create a sample record before it leaves the supplier.

Photograph the sample when it arrives. Include the outer carton, labels, visible damage, contents, accessories and any batch or model mark. Keep the photographs with the record rather than in a personal messaging app.

If a supplier sends two samples, label them separately. Do not compare a revised sample with an earlier one without recording which requirements changed.

5. 4. Inspect the sample in a repeatable order

Use the same order each time so a good-looking surface does not distract you from a functional or specification failure.

A. Packaging and shipping condition

Record:

• outer-carton damage or moisture;
• inner protection and movement;
• pack count and accessories;
• carton dimensions and weight if relevant;
• retail presentation;
• label, barcode and instruction presence; and
• any difference between the approved packaging request and what arrived.

Packaging is part of the commercial and operational decision. It affects damage, storage, freight allocation, customer presentation and sometimes product information or environmental obligations.

B. Identity and appearance

Check:

• colour, finish, texture and visible defects;
• logos, artwork, text and marks;
• seams, joins, edges and fasteners;
• smell, residue or contamination where relevant;
• dimensions against the drawing or specification; and
• whether the sample is the correct model and variant.

Photograph the detail next to a ruler, gauge or other agreed reference where that helps. A photograph is evidence of what you saw. It is not a measurement unless the method and scale are clear.

C. Function and use

Test the use described in the specification:

• opening, closing, fitting or assembly;
• switches, controls, movement and adjustment;
• load, stability or retention where specified;
• connectivity or software version where relevant;
• cleaning, maintenance or replacement steps; and
• foreseeable use that could expose a weakness.

Do not invent a safety test because the product feels unusual. For regulated products, identify the applicable authority, standard or specialist test plan before you make a compliance conclusion.

D. Measurements and tolerances

Record the measurement method, not just the result.

If the specification has no tolerance, record not defined. Do not mark a subjective impression as passed because the sample “looks right”.

6. 5. Use a sample scorecard

Score the sample against the written requirements. Use a status and a note, not only a number.

The weights are a working example. A fragile product may need more emphasis on packaging. A product with a complex function may need a different test plan. The scorecard should reflect the decision risk.

Use these outcomes:

• approve: all mandatory requirements are met and the reference is identified;
• approve with actions: non-critical changes are listed with owners and a deadline;
• revise: the supplier must produce a new sample;
• test: an independent laboratory or category specialist must review it; and
• reject: the sample or supplier is not suitable for the intended order.

Do not allow a high average score to hide one failed mandatory requirement.

7. 6. Know when independent testing is needed

The general sample article should not pretend to tell you which test a regulated product needs. That depends on the product, destination, risk and applicable legislation.

Escalate when the sample is:

• electrical, electronic, radio-enabled or battery-powered;
• intended for children;
• a chemical, cosmetic, cleaning product or product with a safety data sheet;
• intended for food contact;
• sold with health, medical, protective or performance claims;
• connected to software or an app; or
• likely to create a packaging, WEEE, battery or other EPR obligation.

Send the specialist the exact product, variant, intended use, materials, destination market, labels, supplier file and sample photographs. The product-compliance scope guide explains how to route the question before ordering.

An independent laboratory report can answer a defined test question. It does not automatically prove that the supplier’s production batch, packaging, label or full product file matches the tested sample.

8. 7. Control changes between sample and production

Suppliers may propose a cheaper material, substitute a component, change a mould, adjust a finish or alter packaging. Treat every change as a new decision.

Use this change log:

The supplier should not treat “same function” as permission to substitute. The material, dimension, finish, component, label or packaging can matter even when the product still appears to work.

If the change affects safety, compliance, customer claims, packaging or the purchase-order specification, reopen the relevant review. The supplier-audit guide can help you decide whether a broader capability check is needed.

9. 8. Approve a reference sample

When the sample is approved:

1. assign a permanent sample ID;
2. sign or otherwise acknowledge the specification version;
3. photograph the product, packaging and labels;
4. record measurements and test results;
5. list allowed variations and tolerances;
6. record every open action and owner;
7. store the physical sample securely; and
8. attach the reference to the purchase order and inspection plan.

Keep one sample with the buyer and, where useful, one with the supplier or inspector. Record who holds each one. If the physical sample is destroyed or altered, the photographs and specification should still identify what was approved.

10. 9. Move approval into the first order

The purchase order should reference:

• product and sample ID;
• specification and artwork versions;
• mandatory dimensions and tolerances;
• quantity and variant mix;
• packaging and instruction requirements;
• production date and delivery window;
• inspection stage and acceptance criteria;
• change-approval process;
• payment and shipment-release trigger; and
• the document owner for defects or deviations.

The first production-order guide explains how to connect the approved sample to the inspection record and production release. The payment-terms guide explains why an agreed inspection point can matter before the balance is released.

11. 10. Worked decision example

Assume a buyer receives a storage organiser sample. The specification requires 300 mm length, 200 mm width, a defined fabric weight, a stitched handle, one retail carton and an instruction card.

The sample matches the dimensions and handle. The fabric is lighter than specified, the carton is unprinted and the instruction card is missing.

The right decision is not “mostly passed”. Record:

• fabric weight: fail, mandatory requirement;
• carton artwork: open, packaging requirement;
• instruction card: open, product-information requirement;
• dimensions and handle: pass, measured evidence; and
• production approval: revise, because mandatory and packaging requirements remain open.

Ask the supplier for a revised sample or written corrective evidence. Do not approve production and hope the missing details will be fixed at the factory.

12. The reusable sample record

Keep these fields in the spreadsheet or CMS record:

13. Final operating rule

A sample is valuable when it is identifiable, measurable and connected to the next control.

Define the question. Send the specification. Record the chain. Inspect the important details. Escalate regulated-product questions. Preserve the approved reference. Then make the purchase order and inspection plan point to the same version.

The sample is not the finish line. It is the reference that makes production accountable.

Scope and source note

This draft was checked on 14 August 2026. The general process uses disclosed worked assumptions and avoids unsupported category-specific claims. Product-specific safety, labelling, testing and EPR examples require current official authority sources and specialist review before publication.

• European Commission Access2Markets: product requirements, checked 14 August 2026. Used as a starting point for product, labelling and market-requirement questions, not as a substitute for a product-specific assessment.
• GOV.UK: product safety advice for businesses, checked 14 August 2026. Used to route UK product-safety questions to the right evidence and specialist review.
• European Commission: Safety Gate, checked 14 August 2026. Used as a current product-safety alert resource, not as evidence that a supplier sample is approved.

This page remains a private review draft until the Sourcing Desk confirms the scorecard, change-log example, regulated-product escalation language and internal links. It is commercial sourcing guidance, not legal, product-safety or laboratory advice.