Product Page special equipment

The Filter Test Center (FTC) is used to test the integrity of sterile depth filters. For this purpose, the device carries out a DOP test (Dioctyle Phthalate test) according to EN 1822 and ASTM D 2986-91 (see above). The efficiency of the filter element is displayed.

Filter Test Center FTC
Ease of operation and a menu driven user interface are the features of the FTC. All operating sequences are shown in a LCD display. This means, the user is always
informed on what is currently going on and which steps have to be taken next. The device automatically calibrates either after a set period of time or after a restart. This ensures reliable and reproducible results at any time. These results are evaluated (good/bad) and logged by a printer or they can be directly requested via a serial interface to a PC.
Filter test FTC
Compressed air inlet: Min. 5 bar
Max. 10 bar
Maximum air consumption: 35l/min
Test aerosol concentration: 930 mg/m³
Electric voltage: 220/240 V AC 50 Hz
110/120 V AC 60 Hz
Weight: ca. 32 kg
Dimensions: 470x555x330 (LxBxH)
Operating temperature: 15°-40°C
Humidity of air: max. 85% r.F.

Dioctyl Phthalate Test (DOP)
The DOP test is only used to test the integrity of sterile depth filters and shows the retention rate of the filter elements. The testing procedure is described by EN 1822 and by ASTM (American Society for Testing and Materials) D 2986-91. An aerosol generator is used to produce a paraffin oil smoke with a particle spectrum of 0.1 to 0.5 μm. The test smoke is used to moist the filter element. A laser particle counter counts the number of particles that pass the filter element. A “sterile” element has to have a LOG reduction value (LRV) of more than 7 per cm² filtration area. That means that out of 10⁷ particles only 10° (= 1) particle is allowed to pass per cm² of the filtration area. Than the LRV is higher than 7 and the element is considered as “sterile”.