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2. Example of a nonexempt item. A finished part that has gone through the final cleaning step of its manufacturing process is swiped and found to have a residual surface contamination of less than 0.2 µg Be/100 cm2. However, further handling or use (e.g., abrading the surface or exposing the object to an environment that results in removable oxidation, but not including operations that do not abrade the surface) results in removal beryllium surface contamination greater than 0.2 µg Be/100 cm2. The part is no longer an article and is subject to the rule. Beryllium metal or beryllium-copper alloy objects are expected to meet this criteria; beryllium oxide objects may not meet the criteria, although the determination depends on use.
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