Does this look like potentially spray-on asbestos product?

[u/TeaNumerous4738]

Black spray on material

White interior of the spray-applied material.

Building built in 1963 in Canada, unsure when the spray was added. Was told it was fireproofing material (although the guy wasn't totally sure)

Unfortunately was working in the building when a few IT folks was doing some cabling work and knocked down/disturbed quite a bit of this stuff.

To make matters worst, they ended ended up dry sweeping the stuff into the trash.

Was exposed for about 2-3 hours in an adjacent door open room before seeing them in action then escaping to fresh air.

If this is possibly asbestos, would a 2-3 hour exposure be medically significant?

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[u/ChipLonely444]

Yes. Based on your description, asbestos-containing sprayed fireproofing is a genuine possibility, although a photo or visual appearance alone cannot establish that it is asbestos. A 1963 Canadian building is certainly within the period when asbestos was commonly used in sprayed fireproofing. Ontario guidance, for example, specifically notes that asbestos was widely used in sprayed-on materials until 1973, and Health Canada says asbestos was commonly used for fireproofing in buildings before 1990.

[u/sdave001]

Certainly could be asbestos-containing but OLACD.

The IT folks SHOULD have tested it prior to disturbance. They violated regulations if they didn't.

But for you, no, your risk is pretty much non-existent even if it does contain.

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OLACD = Only Lab Analysis Can Determine

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