Range Ion Level (atoms/cm2) Sodium Potassium Calcium Fluoride Chloride Sulfate Phosphate Nitrate High <2 x 1013 <2.1 x 1013 1 x 1014 2 x 1013 13 x 1013 <5 x 1012 <7 x 1012 <10 x 1012 Average <1 x 1013 <1 x 1013 5 x 1013 1 x 1013 8 x 1012 <3 x 1012 <5 x 1012 <7 x 1013 Low <4 x1012 <4 x 1012 1 x 1013 <3 x 1012 <3 x 1012 <1 x 1012 <1 x 1012 <2 x 1012

Table V: Ionic cleanliness of nine recleaned OEM parts.