| WH |
Sample composited in laboratory at client request. |
| QZ |
Sample collected in tedlar bag. |
| UQ |
Sample analyzed by EPA 200.8 using a dynamic reaction cell. |
| BU |
Sample analyzed after holding time expired |
| XV |
Sample acidified to pH <2 and allowed to sit 24 hours before further processing. |
| GF |
Sample absorbance is less than 50% of spike absorbance |
| BB |
Sample > 4x spike concentration |
| FF |
S/N ratio 10:1 for the int. std. and assoc. analytes |
| RC |
RPD useless info due to varying samp. wghts using Encore sampler |
| RA |
RPD exceeds limit due to matrix interf.; % recovs. within limits |
| IL |
RPD exceeds laboratory control limit |
| RB |
RPD exceeded method control limit; % recoveries within limits. |
| LT |
RPD calc. does not provide useful info due to sample wt variation |
| UM |
Reviewed and accepted |
| FG |
Results rejected due to int. std. rec. outside QC limits |
| QE |
Results in the diesel range are primarily from overlap heavy oil |
| FH |
Results are valid even though int. std. rec. outside QC limits |
| IA |
Results are valid even though CCV recovery outside of limits |
| OC |
Result not bracketed by accept.cal check due to inst. malfunction |
| OL |
Result may be biased high due to carry over from prior analysis. |
| QM |
Result is reported below the CRDL for QC purposes only. |
| PJ |
Result from re-extract/re-anal to confirm original MS/MSD result |
| EY |
Result exceeds normal dynamic range; reported as a min. est. |
| HH |
Result exceeds linear range; concentration may be understated |
| HG |
Result exceeds calib. range, but not lab's; considered valid |
| GO |
Result est. below lower calib. limit but above target limit |
| GJ |
Result determined using SIM mode |
| UJ |
Result determined by alternate method. |
| GV |
Result detected is below the lowest standard and above zero |
| GM |
Result calc. by avg. response factor from init. calib. curve |
| UY |
Reporting limits raised due to loss of instrument response. |
| BG |
Reporting limits raised due to interelement interference |
| BH |
Reporting limits raised due to high level of non-target analytes |
| BF |
Reporting limits raised due to high hydrocarbon background |
| DG |
Reporting limits elevated due to sample dilution |
| DF |
Reporting limits elevated due to matrix interferences |
| CM |
Reporting limits elevated due to low percent solids |
| DH |
Reporting limits elevated due to insufficient sample quantity |
| GS |
Reporting limit(s) raised: high level target analyte in sample |
| GH |
Reporting limit must be considered an approximation |
| YK |
Reporting limit increased due to sample foaming. |
| IS |
Reporting limit elevated due to pres. of analyte in method blank |
| QR |
Reported from a secondary dilution (to get result on scale). |
| OH |
Report limit raised due to inadequate response at lowest cal. |
| OI |
Rep.limit raised: carryover from contam samp earlier in analy seq |
| BA |
Relative percent difference out of control |
| PD |
Recommended storage temp of 4C exceeded prior to analysis |
| FC |
Quantitative interference |
| QCA |
Quantitation begun immed. before RT of tert-Butanol (TBA) |
| QCM |
Quantitation began immediately following methanol peak |
| GK |
Quantitated as an isomer pair |
| LW |
Quantitated against gasoline. |
| LX |
Quantitated against diesel fuel. |
| QY |
Quantitated against a Stoddard solvent standard |
| HB |
Quantit. of unknown hydrocarbon(s) in sample based on gasoline |
| HA |
Quantit. of unknown hydrocarbon(s) in sample based on diesel |
| DL |
Quantified using 30-weight motor oil standard |
| DQ |
QC results not applicable because of sample matrix |
| FB |
QC ion deviation > 20% relative to labeled std. used for quant. |
| CR |
QC criteria not met, sample re-analyzed with similar results |
| CT |
QC criteria not met due to high level of analyte concentration |
| CS |
QC criteria not met due to analyte concentration near RDL |
| DB |
QA results outside of acceptance limits due to matrix effects |
| XW |
Purged |
| FV |
Purge volume 5 mL |
| FW |
Purge volume 25 mL |
| PTV |
PTV = Purge Test Volume(s) |
| RF |
Primary/confirm. results vary >40% RPD; res. may still be useful |
| PI |
Primary and confirm results varied by > than 40% RPD |
| UX |
Primarily compounds not found in typical Gasoline. |
| UO |
Presumed satisfactory |
| OD |
Present |
| PR |
Preliminary result |
| GW |
Post-digestion spike recovery between 115%-150% |
| GT |
Post-digestion spike recovery <40% due to matrix interference |
| GE |
Post-digestion spike out of control limits |
| HR |
Post-digestion spike |
| GQ |
Post-digest. spike recov. 40% - 85% due to matrix interference |
| QV |
Possibly aged gasoline. |
| PF |
Possible low bias due to CCV falling outside acceptance criteria |
| PE |
Possible high bias due to CCV falling outside acceptance criteria |
| PA |
Possible biogenic interference in detected hydrocarbons |
| XF |
Possible aged fuel. |
| WD |
Positive result confirmed by a second detector. |
| OQ |
Positive - (+) |
| FM |
Poorly resolved GC peak(s) |
| QU |
Per EPA, benzidine subject to oxidative loss during solvent conc. |
| FA |
Peak coelution, sample concentration may be artificially low |
| EZ |
Peak coelution, sample concentration may be artificially high |
| IP |
Parameter detected in method, trip, or equipment blank |
| XK |
Outside client's test acceptance limits, but within laboratory calculated QC limits. |
| LC |
Original analysis a positive result. Reanalysis did not confirm. |
| PL |
Opening calib. for analyte out of limits due to instru. contam. |
| PK |
Opening calib verification standard outside acceptance criteria |
| WY |
Oil range compounds are significant. |
| QN |
Not to be reported for compliance purposes. |
| YB |
Not Requested/Not Required. |
| LV |
Non-fuel pattern present. |
| DA |
Non-fuel components excluded from the results calculation |
| OG |
Non-aggressive |