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This specification contains metallic coatings used for protection against
corrosion and/or abrasive wear and/or for decorative reasons.
The corresponding Ob (surface treatment) number and the code designation
permit an accurate definition of the respective coating in engineering
drawings and documents.
This standard partially supersedes ATE N 106 36.11 and ATE N 106 36.31 whose
usefulness as a ready reference has progressively deteriorated as a result
of the continual addition of new coatings. Moreover, the coating thickness
tolerances defined there in some instances no longer reflect recent
practice.