I stupidly started ripping down a damaged ceiling tile with the idea of replacing it with a new one. Someone mentioned that ceiling tiles sometimes contain asbestos.
The house is from the 30's however the ceiling tiles appear to be added on after the fact to cover a damaged plaster ceiling.
I had already tested the plaster in a different room and it had come back negative.
Best Answer
You've done the right thing with the plaster as you stated. You sent a sample to a lab and had it tested. That is the only way to know for sure.
We cannot tell you from a photo with certainty.