Vermiculite Sample Instructions.
Laboratory Services.

Vermiculite may contain asbestos — test it.
Homeowners and Home Inspectors may have justified concerns in wanting to have their Vermiculite Insulation tested for Asbestos.
These concerns might include:
- The attic is used for living space or frequently entered storage space.
- Dust is sifting out of the attic or walls through seams, ducts or penetrations such as light fixtures.
- If the insulation will be affected by a home renovation or alteration.
- If you are planning to sell your home.
In these cases, testing and expert advice is warranted. If you decide to have the suspect material analyzed (since not all vermiculite insulation contains asbestos), for your own safety, please follow the recommended sampling procedure below.
Vermiculite / ZAI Insulation Sampling Procedure
1) The homeowner is advised to collect a minimum of three (3) separate samples of each distinct variety of vermiculite insulation from different areas throughout the attic. Multiple sampling may identify conditions of mixed asbestos and non-asbestos vermiculite that a single sample would miss. Also, provincial occupational health and safety law for Ontario, at least, requires a minimum of three samples from any single material of uniform appearance to conclude it is not an asbestos-containing material.
2) Collect one to two cups full of insulation for each of the three (3) samples (each in its own bag) taken from the bottom half of the insulation in the attic or from the bottom of the wall cavity (the asbestos tends to settle to the bottom).
3) Avoid creating and breathing any more dust than necessary during this collection, and do not remain in the area longer than necessary. The U.S. EPA and Health Canada recommend that you use a respirator to reduce the dust you breathe during this collection. You can purchase a NIOSH-approved half-face P100 respirator from most hardware stores or safety suppliers. Follow the instructions with the respirator regarding fitting and maintenance. This respirator should not be used for major disturbance of vermiculite, which would be encountered during renovations in the attic, or for removal of the material. Try to avoid tracking the insulation or dust into the living space of the house, and use plastic sheets below areas of work.
4) Place the sample in a zip lock freezer bag and provide the following information on each bag or fastened to the bags:
- Name
- Address
- Phone number
5) Complete the Chain of Custody Form for Vermiculite & ZAI Analysis and submit it with the samples.
6) Have samples brought, mailed or couriered to:
Pinchin Ltd.
Mississauga Laboratory
Attention: Kendra Bertuzzi
2555 Meadowpine Blvd., Unit 2
Mississauga, ON
L5N 6C3
Office hours are 8:30 am to 4:30 pm Monday to Friday.
There is an after-hours sample drop box beside the main doors of the Mississauga Asbestos & Microbiology Laboratories Building.
Phone: 905-363-1433
Toll Free: 1.855.PINCHIN (746-2446)
Where can I get more information on asbestos?
Health Canada—Health Risks of Asbestos
Health Canada—Vermiculite Insulation Containing Amphibole Asbestos
U.S. Environmental Protection Agency—Asbestos website
(Copies of Accreditation certificates and scope of accreditations are available upon request)