| 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 is a mechanism for tracing the lineage of a sample from the time of collection through reporting of results to sample disposal.
The chain of custody is initiated by the sampler. As samples are passed from individual to individual, the transfers are noted. This process continues until the samples are delivered to the laboratory where the 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. You can access this form by clicking on www.galsonlabs.com/solutions/training/ . Simply "Launch the Gallery" and go to the tab "View Complete List", go to "General" and then "Chain-of-Custody".
To download a blank Chain of Custody form in Adobe Portable Document Format (PDF) click on the Quick Link to the right, This downloadable form is an editable pdf that can be saved on your computer for each sampling event.
If you want to download the form so that you can save it and be able to use this on an ongoing basis, right click your mouse on the pdf icon in the "Quick Links" for the Blank Chain of Custody Form and use the "save target as..." option to save the form to your desktop. You will then be able to pull up the pdf form and type your new information right in the form.
When you finish, e-mail this to Galson and send in your original. |
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Blank Chain of Custody Form |
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When completing the Galson Chain of Custody form, please review the
following defined terms:
| "Sample Identification" is used to identify your samples
in a unique form. |
| "Date Sampled" is the date samples were collected. |
| "Collection Medium" is the type of sampling media used
to collect the samples. Tubes are usually numbered on
the side and cassettes have a label stating what they
are (i.e. preweighed (PW) PVC, or matched weight MCE) |
| "Air Volume" is calculated by taking collection time(min)
x flow rate (LPM) |
| "Passive Monitors" is where you record the total minutes
sampled for each passive monitor. |
| "Analysis Requested" refers to the analyte(s) you are
looking to have analyzed (i.e. benzene, copper, ammonia,
etc) |
| "Method Reference" is the method to be used for the analysis |
| "Specific DL Needed" should be completed if you are requiring
a specific detection limit. |
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