I took a sample of plaster to be analyzed. I was promised results by the next day. Having heard nothing after two days, I called Angstom Analytical and was promised results by the end of the day. The afternoon of the third day, I called and left a message (unable to reach anyone). I sent and email and have yet to receive a reply. Subsequent phone calls failed to connect with a person and no calls are returned.
The sample is gone, the money is gone, and my patience is gone. Stay away from Angstrom Analytical.