Abstract
The method adopted as official, final action last year was studied collaboratively again this year for calcium in canned vegetable products other than canned whole tomatoes. Twenty-six cans each of whole potatoes with calcium declared on the label and sliced potatoes and lima beans without a label declaration for calcium were analyzed by 13 analysts in 12 laboratories. Again the results were easily reproducible, and the agreement between laboratories was good. Because the method gives continuing precision and low standard deviations, it is recommended for adoption as official, final action for pharmaceutical and vitamin-mineral preparations and canned whole tomatoes, and as official, first action for canned potatoes and lima beans.
