EVS-EN 1670:1999

This European Standard specifies the requirements for the corrosion resistance of hardware for doors, windows, shutters and curtain walling.  The standard specifies requirements for both coated and uncoated surfaces, four grades (classes) of corrosion resistance being laid down in accordance with the different conditions of use (grades(classes) 1 to 4). A grade (class) 0 is also included for which no requirements have been specified. Requirements for levels of corrosion higher than those laid down for grade (class) 4 have not been included in this standard and are subject to agreement where required.