NMHCs_GC_offline_xx_KOS
installed
🔬 gas chromatograph, offline
▶ 📝 Notes
* Measurement height above building: We do not use inlet above building. * Sampling interval: twice a week (Monday and Thursday) * Compounds: specify the compounds measured according to the list * unclear: 'Ozone Precursorts, trap U-T17O3P-2S, Markes International
▶ 💨 Sample from 9999-01-01
| Pump | |
| Time | 2.0 minutes |
| Air flow | 4750.0 mL/min |
| Canister volume | 1.5 litre |
| Sampling volume | 0.4 litre |
| Canister sampling | Pumping |
| Sampling interval | 72.0 hours |
| Canister pressure post | 2.0 bar |
▶ 🔧 Inlet System from 2026-03-04
| Residence time | 1.0 s |
| Lower mesh size | 10.0 µm |
| Upper mesh size | 10.0 µm |
| Inlet tube material | PTFE (Teflon) |
| Filter inlet material | PTFE (Teflon) |
| Distance from nox inlet | 50.0 m |
| Inlet line heating bool | ✗ |
| Distance from ozone inlet | 50.0 m |
| Measurement height above ground | 1.4 m |
▶ ⚗️ GC System from 9999-01-01
| First column | |
| Length | 50.0 m |
| Material | Agilent J&W HP-AL/S |
| Film thickness | 8.0 µm |
| Inner diameter | 320.0 µm |
| Second column | |
| Length | 60.0 m |
| Material | Agilent J&W HP-1 |
| Film thickness | 1.0 µm |
| Inner diameter | 250.0 µm |
| Instrument model | [Referenz-ID: 636] |
| Pre column select box | ✗ |
| Instrument manufacturer | [Referenz-ID: 547] |
| Second column select box | ✓ |
▶ 📡 Detection from 9999-01-01
| Select | FID |
| System | |
| Detection manufacturer | [Referenz-ID: 547] |
▶ 📐 Calibration from 9999-01-01
| Zero gas generation | Other |
| Calibration frequency | 3.0 months |
| Number of repetitions | 1.0 |
| Zero gas blank frequency | 1.0 days |
| Zero gas generation if other | cylinder gas N2 (6.0) |
Calibration Certificates (2)
Name:
NPL_NMHC_2021_KOS
Supplier:
NPL
Cylinder:
D933541
Valid: 2021-11-23 → 2026-11-22
Name:
NPL_NMHC_2022_KOS
Supplier:
NPL
Cylinder:
D982552
Valid: 2022-06-22 → 2027-06-24
▶ 🧪 Air Treatment from 9999-01-01
| Bool other | ✗ |
| Co2 removal | None |
| Water removal | None |
| Oxidant removal | None |
| Particle removal | PTFE (Teflon) |
▶ 📤 Data Submission
Databases
|
|||||
▶ ✅ Data QA/QC
| Bool voc | ✓ |
| Bool other | ✗ |
| Bool ratios | ✗ |
| Bool calibrations | ✗ |
▶ 📋 Measurement QA/QC
| Checklist | 1.0 days |
| Instrument log book | Hard copy |