Table 4 Test conditions of active-mode tests (with forced air exchange)
From: Adsorbent media for the sustainable removal of organic air pollutants from museum display cases
Parameters | Adjustment/procedure |
|---|---|
Chamber volume [m3] | 1 |
Adsorbent weight [g] | ca. 3 |
Temperature [°C] | 30 ± 2 |
Relative humidity [%] | 50 ± 5 |
Air exchange rate [h−1] | 0.5 |
Testing time [h] | 72 |
Injected target substances [mg/ml] | Para-formaldehyde: 12 mg Acetic acid, formic acid, toluene, alpha-pinene: 10 ml |
Sampling intervals [h] | 5, 24, 30, 48, 72 |
Sampling VOCs | Adsorbent: Tenax TA®, sampling volume: 3 l, analysis: TD-GC/MS |
Sampling formaldehyde | Adsorbent: distilled water, sampling volume: 30 l, analysis: acetylacetone-fluorescence |
Sampling formic acid and acetic acid | Adsorbent: silica gel, sampling volume: 30 l, analysis: IC |