China on Wednesday announced standards for levels of the industrial chemical melamine permitted in milk and food products as it seeks to rein in a festering safety scare. The government has been struggling to deal with the health and public relations issues stemming from the scandal, which erupted last month and is increasingly affecting China's food exports. Safe melamine limits were set at 1 part per million of infant formula and 2.5 parts per million for liquid milk, milk powder and food products that contain more than 15% milk.
