PAF 112 Cabin Air Gas Adsorption Test System
Gas-tight cabin-air filter test system for dynamic adsorption-capacity, breakthrough and desorption measurements with controlled pollutant-gas dosing and downstream gas analysis.
Model Overview
| Model | System purpose | Standards / method | Core fit |
|---|---|---|---|
| PAF 112 | Controlled pollutant-gas test platform for dynamic molecular-filter performance | DIN 71460-2, ISO 11155-2, ISO 10121-1, ISO 10121-2 | Adsorption capacity, breakthrough response and desorption behaviour of cabin-air filters |
Key Features
Controlled gas dosing
Mass-flow controllers dose reference gases while a dedicated liquid-component system supports vapour generation.
Gas-tight stainless-steel duct
The test section and associated ductwork minimise adsorption and contamination effects.
Dynamic adsorption measurement
Determines adsorption capacity and breakthrough behaviour under controlled airflow and concentration.
Desorption evaluation
Records downstream release after challenge removal to characterise retained contaminants.
Multiple gas analysers
Supports FID, NDIR, CLD and application-specific gas-analysis configurations.
Flexible specimens
Adapters accommodate different filter-media samples and complete cabin-air filter elements.
Technical Specifications
| Parameter | Unit | Value / Description |
|---|---|---|
| TEST RANGE | ||
| Test-flow range | m³/h | 70–700 |
| Differential-pressure range | Pa | 0–1000 |
| Maximum specimen size | mm | 300 × 600 |
| Reference gases | — | n-Butane, toluene, SO₂, NH₃ and application-specific gases |
| MEASUREMENT AND SYSTEM | ||
| Gas analysers | — | FID for hydrocarbons, NDIR for sulphur oxides and CLD for nitrogen oxides |
| Environmental sensors | — | Temperature, relative humidity and absolute pressure |
| Power supply | — | 3 × 230 V AC; 16 A |
| Dimensions (W × H × D) | mm | 1800 × 2500 × 1100 |
Published values support initial model selection. Confirm final configuration, utilities, accessories and calibration scope during technical review.
Applications
Cabin-filter adsorption capacity
Dynamic measurement of pollutant-gas adsorption by cabin-air filters.
Breakthrough curves
Determination of downstream concentration as the adsorbent approaches saturation.
Desorption behaviour
Measurement of contaminant release after the inlet challenge is reduced or removed.
Adsorbent-media development
Comparison of activated-carbon and other molecular-filtration media.
Complete cabin filters
Testing of assembled passenger-compartment filters with configurable adapters.
Standardised gas testing
Documented procedures for development, benchmarking and quality assurance.
