Quality Assessment Test Flags
| Flag | Description |
|---|---|
| blank | untested |
| 0 or 00 | untested |
| 01 | passed test |
| 02 | passed SERI QC two-component test or one MIDC QC delta test |
| 03 | passed SERI QC three-component test or two MIDC QC delta tests |
| 07 | below minimum |
| 08 | above maximum |
| 09 | strange but true |
| 10-97 | SERI QC test (increasing severity of failure) |
| 21 | MIDC QC: failed one or more delta tests (data suspect) |
| 31 | DQMS: LongWave Test or UPWelling ShortWave Test (misc. failure code) |
| 99 | Missing value |