AA QCA-2: First Edition
SDO: AA: The Aluminum Association Inc.
DOD Adopted ANSI Approved Approved
Visual quality attributes of aluminum extrusions has been compiled by a task group of the technical committee on product standards as a reference for those who have an interest in extruded products and who have an interest in the terminology commonly used in this segment of the aluminum industry.
The terms are arranged alphabetically in the index based on the term noun followed by the appropriate adjective. The preferred terms, obtained by consensus, are defined; other terms for the same condition are cross referenced. In cases where a term has become obsolete, it is given in parenthesis. Readers are encouraged to use the preferred terms.
The reader should be mindful that terminology is the subject of this document. The visual quality attributes defined, together with any visual representation, do not constitute quality standards. In many instances, the definitions are enhanced by visual extremes.
Whenever possible, typical causes are given for the visual attributes. these causes may differ from the experience of the reader due to alternate equipment, processes, or technology.
Though a number of Aluminum Association member companies provided pictures and sketches, Kaiser Aluminum and Chemical Corporation also gave the Association use of illustrations from their published document.
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