K-PlateTin plate with superior corrosion resistance to mild acid food products; must meet four (4) special property tests 1. Pickle lags 10 or less. 2. in crystal size ASTM 9 or larger. 3. ISV (iron solution value) 20 micro rams Fe or less. 4. ATC (Alloy tin couple - American Can test) or AMP (Aerated Media Polarization test) Avg. 0.050 micro amps/sq. cm. Or less - 95% 0.085 or less. No test over 0.120.