Fractional Efficiency Test Bench
Fractional Efficiency Test Bench
Fractional efficiency test bench main structure and trend, important parts configuration, function and important parameter setting, material selection, data processing, test bench main verification project, are based on ISO-19713-1 standard " Road vehicles - Inlet air cleaning equipment for internal combustion engines and compressors - Part 1: Fractional efficiency testing with fine particles ".
Aerosol manufacturing reference to the US standard ANS / ASHRAE 52.2-1999, fixture manufacturing reference to the European standard EN1822.
This type of products is used for clean room supplies production enterprises, filter production enterprises, the relevant scientific research units and measurement of enterprises and other enterprises.
Technical Parameters
| Items | Parameters | |
| Test aerosol | Material | KCL solid particles |
| Particle size | 0.3um-10um | |
| Concentration | adjustable (≥ 10um particle concentration of about 5000-10000J / L | |
| Upstream and downstream particle counter | Sampling Flow | 28.3L / min ± 5% |
| Particle size | 0.3um, 0.5um, 1um, 3um, 5um, 10um | |
| Particle size distribution error | indication concentration error; another count requirements are in line with national JJF 1190-2009 "dust particle counter correction norms" and on this basis, with particular emphasis on large particles (3um, 5um, 10um) metering correction. | |
| Test flow rate | Flow adjustable range | 60L / min-150L / min (equivalent to the filter speed 10cm / s-25cm / s) |
| Flow accuracy | ≤ ± 5% | |
| Flow stability | ≤ ± 10% | |
| Filter resistance measurement | Range | 0-500Pa （Please consult with other areas） |
| Accuracy | ≤ ± 5% | |
| Repeatability | ≤ ± 5% | |
| The initial classification efficiency measurement | Applicable scope | medium,high effect filter material |
| Repeatability | ≤ ± 5% |
