LABLOTCTL (Lab QC Lot Number)

Attributes Format  Tables Guidelines & Restrictions Definition
C10 ALPHANUMERIC TEST, QC LABLOTCTL may not be left blank. The Lab QC Lot Number is a unique identifier for an autonomous batch or group of environmental samples prepared together, and sharing the same quality control within the same time period. This group is equivalent to the EPA SW-846 concept of a "Quality Assurance Batch."
LABLOTCTL in the TEST file must have a matching record in the QC file.
LABLOTCTL must be unique per ANMCODE, PARLABEL, MATRIX, LABCODE.