Table 1.

Performance tests of the Tree DEMON for BVOC emission studies

Test	Method	N	Settings
BVOC sampler unit repeatability and reproducibility	Sampling of Δ2-carene enriched air direct at chamber inlet	48 (4 sampler strings, 4 ports, three repetitions)	Sample rate 150 mln min−1, Sample duration: 10 min, Standard gas addition: 50 mln min−1 of Δ2-carene Chamber flow rate: 5 ln min−1 (~0.22 nmol mol−1 Δ2-carene mixing ratio in the inlet air)
Chamber wall effects	Sampling Δ2-carene enriched air direct at chamber inlet and outlet simultaneously at 2 chambers	20 (2 chambers with each 2 sampler strings at inlet and outlet, 5 measurements)	See above
Residence time of compounds	Sampling system air after 1 h stop of Δ2-carene enrichment	12 (2 chambers with each 2 sampler strings at inlet and outlet, 3 measurements)	See above

N number of measurements