The main Semi-conductors grades of H202 are the following

GRADE                  Cationic impurities

ULSI                             < 10   ppb

SLSI                             <  1   ppb

PICOGRADE^TM                 < 0.1 ppb

Detailed technical data sheets, specifications and advice regarding these products are available from Solvay.  Specialised grades for other diverse applications are also available