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Sampling + Analysis

Chain of Custody

It is important to be able to trace samples from collection to data reporting so that the utmost confidence can be placed in the analytical results. A chain-of-custody form is a mechanism for tracing the lineage of a sample from the time of collection through reporting of results to sample disposal.

The sampler initiates the chain of custody. As samples are passed from individual to individual, the transfers are noted. This process continues until the samples are delivered to the labouratory where the chain of custody form is signed, evidencing the date and time of sample receipt. The original chain of custody form is returned to the client with the analytical report, and a copy is retained with the project file by Galson Laboratories.

We have created an instructional video that provides step-by-step instructions for filling out the Chain of Custody form.

To download a blank Chain of Custody form in Adobe Portable Document Format (PDF) click on the ICON below. This is an editable pdf that can be saved on your computer for each sampling event.

When you finish, e-mail this to Galson at  and send in your original. 

Chain of Custody Form

Download Interactive PDF

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