Aluminum profiles are governed by a variety of standards and specifications that ensure quality and consistency. These include international standards such as ISO 7599, which specifies tolerances for aluminum profiles, and ASTM B221, which covers aluminum and aluminum-alloy extruded bars, rods, and profiles. National standards like the European EN 573 or the Chinese GB/T 6892 also provide guidelines for aluminum profiles. Specifications cover dimensions, mechanical properties, surface finishes, and tolerances. Each standard may have specific requirements for different types of profiles, such as those used in construction, automotive, or aerospace industries. Compliance with these standards is crucial for ensuring the safety, performance, and reliability of aluminum profiles in various applications.