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Home / VAN Lab / The Blind Chain
The VAN Blind Chain

Nobody who tested your sample knew it was yours.

That is not a way of speaking — it is how the laboratory is arranged. Your sample is coded before it reaches a bench, split three ways, and run by two analysts working independently. Here is the whole journey, step by step.

Follow a sample through

Seven steps. Watch what happens at step two.

Sample Reception

Your sample arrives — not at the laboratory

Your sample goes to a dedicated receiving address, with your name on it and your submission form beside it. Somebody has to open that parcel — no arrangement removes that, and a laboratory claiming otherwise is describing something that cannot happen.

So the parcel is not opened at the laboratory. Sample Reception is a separate place with its own address, independent of the laboratory both physically and organisationally. The people there know who you are. They will never see your result.

Everything that follows depends on this one arrangement. Reception and analysis are not two desks in a corridor — they are two locations.

What the laboratory would seeYour name · your company · your product
Step 1 of 7

Who can see what

The design in one table. Read it down the last two columns.

RoleKnows who you are Handles the sampleSees the result
Sample Reception (separate address)
Analyst Aown only
Analyst Bown only
Assistant QC Manager
QC Manager (signs)
Coordination / invoicing
No row has both. The people who know who you are never see your number. The people who produce your number never learn who you are. Neither half can bend a result, because neither half holds both pieces — and that is a property of the arrangement, not a promise about anyone's character.

Sample Reception is a separate location with its own address, independent of the laboratory. Segregation of duties is enforced by documented procedure, and reconnecting your code to your report at release is done by the system and logged, not performed by a person.

Two analysts, not one

VAN does not report on a single analysis. Two different analysts run every sample, independently, from the same coded material. Neither sees the other's result before both are submitted.

The two results are then compared against a documented acceptance criterion. Where they agree, the result is reported. Where they do not, the QC Manager decides whether a third analysis is run or which result stands.

A portion of your sample is retained rather than consumed, so if you ever dispute a result, a complete independent re-test is possible from the material you originally sent.

Why this matters to you specifically

🌾
If you are a farmer

They cannot have gone easy on a VAN bag, because they did not know it was a VAN bag. The same protocol runs whether the sample is ours or a competitor's.

🏪
If you are a distributor

Your supplier's stock is tested exactly the way VAN's own product is tested. Same desk, same coding, same two analysts.

🚢
If you are an importer

This is chain of custody, documented — the language your buyer, your bank and your customs broker already work in.

Send us something to test

The protocol on this page runs on every sample that arrives, whoever sent it and whatever is in it.

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