e. Rust. Corrosion which exhibits the typical reddish brown coloration
associated with ferrous material oxidation and in the opinion of the inspection activity
cannot be classified as gray spot corrosion.
(1) Pitted rust. Rust that cannot be removed by rubbing with a soft cloth
and has "pitted" the can surface (Major B defect).
(2) Rust stain. Rust that cannot be removed by rubbing with a soft cloth
f. Interior Defects. These are identified on Open Package Inspections (OPI)
by emptying the tray can, thoroughly washing and drying while taking care not to
scratch the inner surfaces. Examine the interior visually for defects and use a
magnifying lens to confirm and classify the defect.
(1) Fisheye (cratering). A film defect in the interior coating which resembles
small, thinly coated craters (Minor defect).
(2) Blistering (solvent pop/flash). A blister-type defect in the coat caused by
the release of trapped solvent during the cure process (Minor defect; Major B defect if
pitted corrosion or rust is present).
g. Other Defects. Other defects will be classified in accordance with the
inspection tables contained in this Appendix.
a. The Tables listed in this section are used to perform routine or special
b. Some of the Tables cannot be found in the Appendix B but can be accessed
on the Internet.
c. If a Table has footnotes the underlined footnote number will be listed at the
top of each Table and the actual footnote will be found at the bottom of the table.