Historical
AA ANSIH35.3
ANSI H35.3-1997 (R2013) Aluminum Hardeners
The 2013 edition of American National Standard Designation System for Aluminum Hardeners reaffirms the 1997 standard.
Aluminum Association [aa]
The 2013 edition of American National Standard Designation System for Aluminum Hardeners reaffirms the 1997 standard.