LCS Laboratory Inc. offers reliable Vermiculite (Zonolite) asbestos testing for both public and industrial clients. With extensive experience in asbestos testing, our lab analyses thousands of vermiculite samples annually, and we find elevated asbestos levels in approximately 10–30% of them. Ensuring accurate testing starts with collecting a proper sample, and following our guidelines below will help you get the best results.

Steps for Collecting a Vermiculite Sample for Asbestos Analysis

1. Collect Samples from Multiple Areas

Asbestos is often unevenly distributed throughout vermiculite insulation. To obtain a representative sample, collect small portions from various areas in the attic, combining them into a single sample. This approach ensures more reliable results by accounting for potential areas of high and low asbestos concentrations.

2. Sample from the Bottom Layer

Asbestos fibres, being denser than vermiculite flakes, tend to settle towards the bottom of the insulation over time. For an unbiased sample, make sure to reach down to the bottom layer of the insulation and collect from there.

3. Provide an Adequate Sample Size

Our lab requires about 20–40 grams of vermiculite—roughly the volume of a full coffee cup—for accurate asbestos analysis. A sandwich-sized Ziploc bag filled with vermiculite is ideal for submission.

Preparing and Sending Your Sample to LCS Laboratory Inc.

Once you’ve collected your sample, follow these steps for safe and organized shipping:

  • Place the vermiculite sample into a sealed Ziploc bag, then double-bag it for extra protection.
  • Label each sample clearly and accurately.
  • Complete the Request for Analysis Form and include it with the sample.

Include your current email address on the form so that we can promptly send your signed, formal report as soon as the analysis is complete.

For additional details on shipping, in-person delivery, or pricing, please visit our FAQ Asbestos page or contact us via email. Our team is here to help ensure your sample collection and submission go smoothly from start to finish. You can also receive an estimate and place an order for vermiculite testing by following the link below:

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