Skip to main content

TDC 584

Conditioning cabinet TD 584 to discharge air filter and air filter media by isopropanol vapor according to ISO 16890-4

The harmonization of international testing standard ISO 16890-4 requires neutralization of tested filter element by Iso-propyl-alcohole (IPA) treatment. Therefore a suitable test cabinet for filter discharging is needed.
test discharge cabinet TDC 584 /ATEX, front view test discharge cabinet TDC 584 /ATEX, front view and logo Futuresax
The solution proposed in ISO 16890-4, chapter 7 requires a large amount of hazardous substance with approximately 1 l of liquid IPA, whereas particularly the handling of the trays filled with liquid IPA is risky. Furthermore large quantities of IPA saturated air enter the laboratory after opening the cabinet, which is a sanitary as well as a safety-related problem. It also requires an air extraction of the complete laboratory area.

Due to these problems, Topas decided a new cabinet for the filter conditioning according to ISO 16890-4.


ISO 16890-4
Interested? We will gladly advise you

+49 (351) 2166 430

contact form


  • efficient decharging/neutralisation of filter media und filter elements by vaporised iso-propyl-alcohole (IPA)
  • minimal consumption of isopropanol (iso-propyl-alcohol, IPA)
  • fast, homogeniouse and constant over time distribution of the isopropanol vapour in the cabinet
  • adjustable saturation with isopropanol vapour
  • safe operation (certifacted by accredted vertification bodies)


  • conditioning of air filters according to ISO 16890-4 (for followed testing of the mechanical separation behaviour with the General Air Filter Test System ALF 114)
  • electrostatic neutralization of bag- and cartridge filters, filter bags and flat media
Parameter title Unit Value
sample condition, outlet - electrostatic neutralised filter
purpose of use - electrostatic neutralisation of filter elements
sample condition, inlet - filter with unknown charge condition
power supply - 230 V AC, 10 A | 400 V AC, 16 A (blower)
operating medium, gas/air - compressed air supply bar 6
operating medium, gas/air - particle-free, dry compressed air
operating medium, liquid - isopropanol and water
operating medium, filter - pocket filter, cassette filter, filter bag, flat filter media
sensors, others - temperature, liquid level, air flow rate, rel. humidity
dimensions, chamber (w × h × d) mm 610 × 610 × 950
dimensions (w × h × d) mm 1200 × 1900 × 1200
weight kg 250
  • Schuldt T., Däuber E., Engelke T. and Schmidt F. Air filters for indoor environments: Interlaboratory evaluation of the new international filter testing standard ISO 16890. Indoor Air 30 (2020) 3, 464-480

Silimar products

TDC 585

Conditioning chamber TDC 585 to discharge air filter media by isopropanol vapor according to ISO 16890-4

Test Discharge Chamber TDC 585 frontside
detail view