APM 2005 — Aerosol Permeability of Materials Tester

APM 2005 — test rig for the measurement of particle penetration in permeable protective technical fabrics

DescriptionAPM 2005

The purpose of this rig is to assess the performance of materials used in protective clothing in resisting penetration by aerosols. It is different to testing filter media in that there is no forced flow through the material on test. This performance assessment is important in many areas including for protective clothing used in industrial, chemical and military environments.

The material on test is mounted on essentially a hollow flat target plate, which can be orientated as required in the airflow passing around it. A small sample flow is taken from the hollow void and assessed using a welas® sensor connected to a welas® digital 3000 aerosol spectrometer.

APM Material TargetThe particularly versatile test rig is equipped with a removable sample holder which can be modified for diverse applications including testing of filter media or complete filters instead of the protective clothing material.

A further advantage is the fact that the APM 2005 can be operated with different aerosol generators allowing the material on test to be challenged with droplets, salts or dusts as required.

With this test rig concept, the material to be tested is circulated by the air flow to simulate the real situation in use.

Technical parameters

  • Dimensions (LxWxH): 2150 mm x 800 mm x 2650 mm
  • Weight: approx. 600 kg
  • Compressed air inlet: max. 8 bar
  • Volume flow: approx. 40 - 600 m3/h
  • Power supply:
    • Three-phase current 400 V (5-conductors: 3-phases, N, PE) at 16 A-connection
    • Power: max. 3 KW
  • Operating temperature: 10°C - 35°C

Application examples

  • Test of protective clothing materials in step with actual practice
  • Measurement of the particle penetration without forced flow through
  • Development and research of permeability materials

Particular advantages

  • Real measurement results due to simulation of real incident flow conditions
  • Possibility for the comparison of the permeability regarding the particle penetration from several perspectives
  • Possibility for the adjustment of a defined pressure drop on the test medium by means of a variation of the suction volume flow in the sample holder
  • Unambiguous measurement of the particle concentration and size in raw gas and clean gas by using the the light-scattering spectrometer welas® digital 3000
  • Low in maintenance
  • Reliable operation
  • Reduces your operating expenses

Please contact us for more detailed information.