GENEVA — U.S. Secretary of State John Kerry arrived in Geneva today to test the seriousness of a Russian proposal to secure Syria’s chemical weapons.

Kerry and a team of U.S. experts will have at least two days of meetings with their Russian counterparts today and Friday. They hope to emerge with an outline of how some 1,000 tons of chemical weapons stocks and precursor materials as well as potential delivery systems can be safely inventoried and isolated under international control in an active war zone and then destroyed.

Officials with Kerry said they would be looking for a rapid agreement on principles for the process with Russians, including a demand for a speedy Syrian accounting of their stockpiles.

One official said the task is “doable but difficult and complicated.”

The official said the U.S. is looking for signs of Russian seriousness and thinks it will know in a relatively short time if the Russians are trying to stall.