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▶ 🔧 Inlet System

Operated in atmospheric simulation chamber	✗
Measurement height above ground	5.0 m
Measurement height above building	2.0 m
Distance from VOC inlet	0.0 m
Distance from condensables inlet	0.0 m
Distance from ozone inlet	0.0 m
Inlet tube material	PTFE (Teflon)
Residence time	2.6 s
Humidity/Temperature control	None
Inlet line heating	✗
Filter material	instrument internal
Inlet filter mesh size	5.0 µm

▶ 🎯 Zeroing

Zero air	Zero Air generator
Zero air generator manufacturer	EMPA
Zero air generator model	EMPA custom build
Frequency	4.0 weeks
Pressure	2000.0 mbar

▶ 📐 Calibration

Gas standard concentration	20.07 µmol/mol
Gas standard uncertainty	0.1 µmol/mol
Gas standard confidence interval	not available
Zero air	Zero Air generator
Zero air manufacturer	EMPA
Zero air model	EMPA custom build

NO₂ Calibration

Type	Cylinder/Dilution
Automation	Manual
Frequency	4.0 weeks
NO₂ calibrator manufacturer	Horiba
NO₂ calibrator model	Horiba APMC-370
NO₂ calibrator serial number	904635

NO₂ Certificates (1)

Name: VSL_NO2_2022_BRM Supplier: VSL Cylinder: APE 1516654 Valid: 2022-11-30 → 2025-11-09

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▶ 📏 Auxiliary Measurements

Role	Type	Manufacturer	Model	Serial number
Ozone instrument	ultra-violet absorption detector	Thermo Fisher Scientific	Thermo 49i	CM23217152
Meteorology instrument - Temperature	–	Rotronic	Rotronic HC2-S	20216485
Meteorology instrument - Pressure	–	Vaisala	Vaisala PTB330	V0850535

▶ 📋 Measurement QA/QC

Instrument log book	Electronic
Checklist	2.0 weeks

▶ ✅ Data QA/QC

Time series analysis of calibrations	✓
Time series analysis of compound ratios	✗
@VOC@	✗

▶ 📤 Data Submission

Database	Submission interval
ACTRIS	1.0 years

▶ 👤 Operators

Operator	Level
0000-0002-7195-8115	scientist