EXTDATE (Preparation Date)

Attributes  Format Tables Guidelines & Restrictions Definition
D8 YYYYMMDD TEST EXTDATE may not be left blank. The Preparation Date is the date a sample is extracted or prepared for analysis.
EXTDATE must be earilier than or equal to ANADATE.
EXTDATE must be later than or equal to RECDATE.
EXTDATE must be later than or equal to LOGDATE.
EXTDATE must be later than or equal to REP_DATE.