This specification covers unalloyed copper in the form of sheet, strip, and plate at least 0.015 inch (0.38 mm) in nominal thickness.
AMS4500L results from a limited scope revision to correct an error in the units called out for resistivity (see 3.3.3) to make the requirement match the Ω ∙ g/m2 output of the test method.
This Standard is currently a WIP.