Image quality meter JB T7902-2005 16 FE 10

The type and specification of the linear image quality meter are in accordance with the provisions of JB/T 7902-2006,HB 7684-2000 and EN 462-1. The standard numbers of JB/T7902-1999,HB 7684-2000 and GB/T3323-2005 are used for the line photo frame of the metal welded joints as determined by the linear image quality meter in the "Non-destructive Testing of Pressure Equipment" of JB/T4730-2005