_ Figure 8. Plots of the Progressive Accumulated Means of 241A Values from 3 Stages of Analysis. Loe . —— bt aeee oe 7 t ge eet abe pet ne etbe : pee { i DL lot ‘ 1 {io T T Boe epee i i oy to, wpe be ep me ee ——-- - aan CE rot we ee st HOS ae ‘ fa B74 teapot be 1 iad apo poe coee fee t a fo pee]