This specification covers pure aluminum metal (unalloyed) for use as source material for vacuum coating applications. Aluminum metal shall conform to the following requirements: purity grade levels, grain size, dimensions, maximum impurity level, workmanship, finish, appearance, sampling, and packaging. Impurity analysis shall be performed using optical emission spectroscopy and atomic absorption.

1.1 This specification covers pure aluminum metal (unalloyed) for use as raw material for making evaporation sources, sputtering targets, and superconducting wires.

1.2 This specification sets purity grade levels, physical attributes, analytical methods, and packaging requirements.