PMFT 1000 F
The PMFT 1000 F tests particle filters for full-face masks better than the standards EN 143, ISO 16900-3, and NIOSH 42 CFR 84, with additional precise analysis of filter mask efficiency for SARS-CoV-2 (size approx. 120 nm to 160 nm). Furthermore, the testing of face masks based on the standards EN 149/EN 13274-7 and GB 2626 is possible. The tests measure the photometric total penetration and the fractional separation efficiency, i.e., the efficiency based on particle size and the particle size-dependent penetration.
Norms and certificates
National and international standards
CCF (Covid Certified Filter) EN 149 EN 13274-7 GB 2626 42 CFR 84
Operation principle
PMFT 1000 F as an all-rounder in testing of nearly all mask and filter types
The measurement of total and particle size-dependent penetration is carried out using the high-precision aerosol photometer Promo® LED 2300. An automatic measurement switch allows efficiency measurement without dilution up to 99.9995% at higher particle concentrations in the raw gas.
The size distribution of the test aerosol is as follows:
EN 143
Oil: Median diameter 160 nm | Geom. standard deviation ~ 2
Salt: Median diameter 60 nm | Geom. standard deviation ~ 1,9
ISO 16900-3
Oil: Median diameter 190 nm | Geom. standard deviation 1,4 - 1,8
Salt: Median diameter 80 nm | Geom. standard deviation 1,4 - 1,8
42 CFR 84
Oil: Median diameter 200 nm | Geom. standard deviation <1,6
Salt: Median diameter 55 nm | Geom. standard deviation <1,86
Based on the measurement of particle penetration via particle size, the PMFT 1000 F can also be used to consider the tolerances in the particle size distribution according to EN 13274-7 as a min. / max. penetration value.
Overview of standards for filter testing of full-face masks
EN 143 | EN 143 | ISO 16900-3 | ISO 16900-3 | 42 CFR 84 | 42 CFR 84 | |
|---|---|---|---|---|---|---|
Aerosol | NaCl | PaO | NaCl | PaO | NaCl | DOP |
Average diameter | ca. 0,06 µm | ca. 0,16 µm | 0,06 – 0,1 µm | 0,16 – 0,21 µm | 0,055 – 0,095 µm | 0,165 – 0,205 µm |
Standard deviation | ca. 1,9 | ca. 2 | 1,4 – 1,8 | 1,4 – 1,8 | < 1,86 (through additional software module) | < 1,6 (through additional software module) |
Concentration | 4 –12 mg/m³ | 15 – 35 mg/m³ | 8 – 35 mg/m³ | 15 – 35 mg/m³ | < 200 mg/m³ | < 200 mg/m³ |
Discharge | necessary | - | necessary | - | necessary | necessary |
Airflow | 95 l/min | 95 l/min | still to be defined | still to be defined | 85 ± 4 l/min | 85 ± 4 l/min |
Temperature | 22 ± 3 °C | 24 ± 8 °C | 22 ± 3 °C | 24 ± 8 °C | 25 ± 5 °C | 25 ± 5 °C |
Rel. humidity < 40 % | < 40 % | 20 - 80 % | < 40 % | 20 – 80 % | 20 – 40 % (with compressed air) | 20 – 40 % (with compressed air) |
Measuring device | Sodium flame photometer | Light scattering photometer | Sodium flame photometer | Light scattering photometer | Light scattering photometer | Light scattering photometer |
Measuring time | 30 s | 30 s | 30 s | 30 s | lowest charging efficiency | lowest charging efficiency |
Break time | 180 s | 180 s | 180 s | 180 s | lowest charging efficiency | lowest charging efficiency |
Exposition | 120 mg | 120 mg | 150 mg | 150 mg | 200 ± 5 mg | 200 ± 5 mg |
PMFT Remarks | O.K. | O.K. | O.K. | O.K. | O.K. | O.K. |
Extensions/Accessories
The PMFT 1000 F is equipped with aerosol generators for measuring penetration with oil and salt. Measurement procedures for quick quality control (short test) or for testing according to standards (exposure test) are included. A corona discharge test with the CD 2000 A is integrated.
Operation and automatic printing of the measurement results are therefore easy, even for inexperienced users.
Benefits
Your special advantages
- Arbeitsweise des Prüfstands besser als EN 143, ISO 16900-3, 42 CFR 84, EN 149, 13274-7 und GB 2626
- Bestimmung der photometrischen Gesamtpenetration für den Größenbereich nach Norm
- Wird mit zwei Aerosolgeneratoren für NaCl und Öl geliefert
- Integrierte Corona Entladung mit CD 2000 A
- Prüfung der fraktionalen Effizienz, z. B. Effizienz im gesamten Größenbereich von 145 nm bis 5 µm
- Genaue Analyse der Filter- und Filtermaskeneffizienz für SARS-CoV-2 (Größe ca. 120 nm bis 160 nm). Effizienzanalyse bei 145 nm
- Zukunftssicher: Funktioniert mit jeder Art von Aerosol ohne Anpassungen
- Weitere Messung des Differenzdrucks, z.B. auch bei unterschiedlichen Anströmgeschwindigkeiten zur Simulation des Atemwiderstands
- Anströmgeschwindigkeit einstellbar zwischen 1,5 – 70 cm/s
- Produkt zur schnellen Qualitätssicherung und kontinuierlichen Optimierung in F&E (Darstellung der Größenverteilung)
- Attraktives Zwei-Jahres-Wartungspaket für die Verfügbarkeit des Prüfstands
- Kann mit Norm-Filterverschraubungen nach EN 148-1 verwendet werden
- Messung von Filtereffizienzen bis 99,9995 %
Applications
Individual solutions for various industries
- Testing of full face mask filters for use with standard filter fittings according to EN 148-1
- Measurement of total penetration of respirators
- Exact analysis of filter mask efficiency, e.g. coronavirus
- Media test for HEPA quality
Technical features
In detail
- Aerosols
- Salts (e.g. KCl, NaCl), liquid aerosols (e.g. DEHS), latex particles (PSL)
- Test area of the medium
- 100 cm2
- Measuring range (total penetration)
- 0.0005 - 100 %
- Measurement range (size)
- 0.145 – 40 µm
- Volume flow
- 1 – 27 m3/h - pressurized operation
- Power supply
- 115 – 230 V, 50/60 Hz
- Installation conditions
- +10 – +40 °C
- Differential pressure measurement
- 0 – 1,200 Pa
- Inflow velocity
- 1.5 – 70 cm/s (others on request)
- Compressed air supply
- 6 – 8 bar
- Dilution factor
- 1 : 27 / 1 : 700
- Test conditions according to standard
- +19 – +23 °C
- Dimensions
- Approx. 1,800 • 600 • 900 mm (H • W • D)
Downloads
More information about PMFT 1000 F
Palas Announcement: Comparative measurements of the filter media test rig PMFT with test devices of TÜV NORD
Announcement: Comparative measurements of the filter media test rig PMFT with test devices of TÜV NORD
Palas Brochure PMFT System
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