Section 001-337-I-4 - Fill of Container 1/4 Size Can) (3 1/4 Oz. Size Can)A.Flippers1. Lots that contain cans that are "flippers", and where more than 20% of the cans in a lot are flippers, cannot be graded above "Standard" regardless of the total score. This is a limiting rule. A "flipper" is a can having a convex or bulging cover which may be pressed concave or normal again with finger pressure, but will spring out again (convex) after pressure is released.B.Swells1. A "swell" is a can with the cover permanently convex or distended. The presence of any swelled cans in a lot will be graded under Part II (Detailed Grading).C.Underfilled Cans1. 1/4 Size Can. Underfilled cans are cans that contain less than 3.3 ounces of fish after draining. Lots in which more than 20% of the cans in that lot sample are underfilled shall not be graded above "Standard" regardless of the total score. This is a limiting rule.2. 3 1/4 Size Can. Underfilled cans are cans that contain less than 2.7 ounces of fish after draining. Lots in which more than 20% of the cans in that lot sample are underfilled shall not be graded above "Standard" regardless of the total score. This is a limiting rule.3. The drained weight of canned Maine sardines in oil is determined by emptying the contents of the completely opened container upon a standard draining screen, 8 inches in diameter, 2 meshes per inch, with 0.446 inch + 3% square openings. The individual sardines are then separated. (In order to permit proper drainage of oil and water, the emptied can and its detached lid are inverted over the screen and propped against the screen wall at an angle of approximately 45E. The funnel for collecting the oil and water portion tapers from 8 inches to 5/8,with a 3 - inch length. The oil and water is collected in a 30 ml. at 20EC pharmaceutical graduate manufactured according to the National Bureau of Standards specifications.) The drained weight is the weight of the sardines remaining on the screen after a 3 minute draining period.01-001 C.M.R. ch. 337, § I-4