AMS2642F Structural Examination of Titanium Alloys Etch-Anodize Inspection Procedure

AMS2642F results from a Five-Year Review and update of this specification adding Ordering Information, clarifying Purpose (1.1), allowing purer grades of acid to be used for Back Strip Solution (3.1.3), replaced Fixture/Electrical Contact Location (3.3.2) with standardized wording, clarified Etch-Anodize Macrostructure Procedure (3.3.4) by stating that the steps are to be performed sequentially and that specimens may be rinsed or immersed, moved test specimen from 4.1 to 3.3.4.6, added Macrostructure (3.4) requirement as it was required but not in properties, reworded Microstructure (3.5) for clarity, added that the Microstructure (3.5.3) shall conform to the material specification, moved hydrogen pickup from acceptance test (4.1) to periodic test (4.2), added NOTICE (8) regarding restricted or banned substances, and changed shall to should in 8.2.7.