Summary of VG Data Dictionary changes from Version 19990412 to Version 19990827 OLD VERSION 8 0 C YYYYMMDD 1 10 VG VERSION 19990412 NEW VERSION 8 0 C YYYYMMDD 1 10 VG VERSION 19990827 OLD USBLKSRT 5 2 N MERITS 5 1140 UNDERSIDE OF BLOCK SLUDGE RATING (MERITS) NEW OLD NEW TOSCR 7 3 N 4 390 OIL SREEN SLUDGE TRANSFORMED RESULT OLD NEW TNHSR 7 3 N 4 400 NUMBER OF HOT STUCK RINGS TRANSFORMED RESULT OLD NEW OSCRCF 7 3 N 4 450 OIL SCREEN SLUDGE CORRECTION FACTOR OLD NEW NHSRCF 7 3 N 4 460 NUMBER OF HOT STUCK RINGS CORRECTION FACTOR OLD NEW OSCRCOR 7 3 N 4 510 OIL SCREEN SLUDGE CORRECTED TRANSFORMED RESULT OLD NEW NHSRCOR 7 3 N 4 520 NUMBER OF HOT STUCK RINGS CORRECTED TRANSFORMED RESULT OLD NEW OSCRSA 7 3 N 4 570 OIL SCREEN SLUDGE SEVERITY ADJUSTMENT OLD NEW NHSRSA 7 3 N 4 580 NUMBER OF HOT STUCK RINGS SEVERITY ADJUSTMENT OLD NEW TOSCRFNL 7 3 N 4 630 OIL SLUDGE SCREEN FINAL TRANSFORMED RESULT OLD NEW TNHSRFNL 7 3 N 4 640 NUMBER OF HOT STUCK RINGS FINAL TRANSFORMED RESULT OLD NEW OSCRFNL 6 2 N % AREA 4 690 OIL SCREEN SLUDGE FINAL ORIGINAL UNIT RESULT (% AREA) OLD NEW NHSRFNL 6 2 N 4 700 NUMBER OF HOT STUCK RINGS FINAL ORIGINAL UNIT RESULT OLD NEW DWNOCR 2 0 Z 10 2810 NUMBER OF DOWNTIME OCCURRENCES OLD NEW DOWNHxxx 6 0 C HHH:MM 10 2820 DOWNTIME TEST HOURS XXX (HHH:MM) OLD NEW DDATHxxx 8 0 C YYYYMMDD 10 2830 DOWNTIME DATE XXX (YYYYMMDD) OLD NEW DTIMHxxx 6 0 C HHH:MM 10 2840 DOWNTIME TIME XXX (HHH:MM) OLD NEW DREAHxxx 60 0 C 10 2850 DOWNTIME REMARKS/REASONS XXX OLD NEW TOTLDOWN 6 0 C HHH:MM 10 2860 DOWNTIME TIME TOTAL (HHH:MM) OLD NEW TOTCOM 2 0 Z 10 2870 TOTAL LINES OF COMMENTS AND OUTLIERS OLD NEW OCOMHxxx 70 0 C 10 2880 OTHER DOWNTIME COMMENT XXX -n