The test came hours after Russian lawmakers said they plan to revoke the ratification of a global nuclear test ban treaty

The U.S. conducted a high-explosive experiment at a nuclear test site in Nevada hours after Russia revoked a ban on atomic-weapons testing, which Moscow said would put it on par with the United States.

Wednesday’s test used chemicals and radioisotopes to “validate new predictive explosion models” that can help detect atomic blasts in other countries, Bloomberg reported, citing the Department of Energy.

“These experiments advance our efforts to develop new technology in support of U.S. nuclear nonproliferation goals,” Corey Hinderstein, Deputy Administrator for Defense Nuclear Nonproliferation at the National Nuclear Security Administration, said in a statement. “They will help reduce global nuclear threats by improving the detection of underground nuclear explosive tests.