MAXIMUM SPECIFICATION

 Element Sulphuric Acid
(ppb)
 Element Sulphuric Acid
(ppb)
 Aluminum (Al) 1  Neodymium (Nd) 0.5
 Antimony (Sb) 1  Nickel (Ni) 1
 Arsenic (As) 1  Niobium (Nb) 1
 Barium (Ba) 1  Palladium (Pd) N/A
 Beryllium (Be) 1  Platinum (Pt) N/A
 Bismuth (Bi) 1  Potassium (K) 1
 Boron (B) N/A  Praseodymium (Pr) 0.5
 Cadmium (Cd) 1  Rhenium (Re) N/A
 Calcium (Ca) 1  Rhodium (Rh) 0.5
 Cerium (Ce) 0.5  Rubidium (Rb) 0.5
 Cesium (Cs) 0.5  Ruthenium (Ru) N/A
 Chromium (Cr) 1  Samarium (Sm) 0.5
 Cobalt (Co) 1  Scandium (Sc) 0.5
 Copper (Cu) 1  Selenium (Se) 1
 Dysprosium (Dy) 0.5  Silver (Ag) 1
 Erbium (Er) 0.5  Sodium (Na) 1
 Europium (Eu) 0.5  Strontium (Sr) 1
 Gadolinium (Gd) 0.5  Tantalum (Ta) N/A
 Gallium (Ga) 1  Tellurium (Te) 0.5
 Germanium (Ge) 1  Terbium (Tb) 0.5
 Gold (Au) N/A  Thallium (Tl) 1
 Hafnium (Hf) 0.5  Thorium (Th) 1
 Holmium (Ho) 0.5  Thulium (Tm) 0.5
 Indium (In) 0.5  Tin (Sn) 1
 Iron (Fe) 1  Titanium (Ti) 1
 Lanthanum (La) 0.5  Tungsten (W) 0.5
 Lead (Pb) 1  Uranium (U) 1
 Lithium (Li) 1  Vanadium (V) 1
 Lutetium (Lu) 0.5  Yterbium (Yb) 0.5
 Magnesium (Mg) 1  Yttrium (Y) 0.5
 Manganese (Mn) 1  Zinc (Zn) 1
 Mercury (Hg) 1  Zirconium (Zr) 1
 Molybdenum (Mo) 1    

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        Revised: 12/21/05.