|
Null Value Code
|
Null Value Desc
|
| AA | Sample Pressure out of Limits |
| AB | Technician Unavaliable |
| AC | Construction/Repairs in Area |
| AD | Shelter Storm Damage |
| AE | Shelter Temperature Outside Limits |
| AF | Scheduled but not Collected |
| AG | Sample Time out of Limits |
| AH | Sample Flow Rate out of Limits |
| AI | Insufficient Data (cannot calculate) |
| AJ | Filter Damage |
| AK | Filter Leak |
| AL | Voided by Operator |
| AM | Miscellaneous Void |
| AN | Machine Malfunction |
| AO | Bad Weather |
| AP | Vandalism |
| AQ | Collection Error |
| AR | Lab Error |
| AS | Poor Quality Assurance Results |
| AT | Calibration |
| AU | Monitoring Waived |
| AV | Power Failure |
| AW | Wildlife Damage |
| AX | Precision Check |
| AY | Q C Control Points (zero/span) |
| AZ | Q C Audit |
| BA | Maintenance/Routine Repairs |
| BB | Unable to Reach Site |
| BC | Multi-point Calibration |
| BD | Auto Calibration |
| BE | Building/Site Repair |
| BF | Precision/Zero/Span |
| BG | Missing ozone data not likely to exceed level of standard |
| BH | Interference/co-elution/misidentification |
| BI | Lost or damaged in transit |
| BJ | Operator Error |
| BK | Site computer/data logger down |
| BL | QA Audit |
| BM | Accuracy check |
| BN | Sample Value Exceeds Media Limit |
| CS | Laboratory Calibration Standard |
| DA | Aberrant Data (Corrupt Files, Aberrant Chromatography, Spikes, Shifts) |
| DL | Detection Limit Analyses |
| FI | Filter Inspection Flag |
| MB | Method Blank (Analytical) |
| MC | Module End Cap Missing |
| SA | Storm Approaching |
| SC | Sampler Contamination |
| ST | Calibration Verification Standard |
| TC | Component Check & Retention Time Standard |
| TS | Holding Time Or Transport Temperature Is Out Of Specs. |
| XX | Experimental Data |
Produced on November 2, 2009 1:27:04 PM
