PMFT 1000 F
The PMFT 1000 F tests respiratory protection particle filters better than the standards EN 143, ISO 16900-3, and NIOSH 42 CFR 84 with additional accurate analysis of filter mask efficiency for SARS-CoV-2 (size approximately 120 nm to 160 nm). In addition, testing face masks based on EN 149/EN 13274-7 standards is possible. Both total photometric penetration and fractional efficiency are tested, e.g., the efficiency in the whole size range, respectively, 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 the testing of almost all mask and filter types
The measurement of total penetration and penetration via particle size is carried out with the high-precision aerosol photometer Promo® LED 2300. An automatic switch allows efficiency measurements without dilution up to 99.9995 %.
The size distribution of the test aerosol according to the standard is as follows:
EN 143
Oil: Media diameter ca. 160 nm | Geom. standard deviation ~ 2
Salt: Media diameter ca. 60 nm | Geom. standard deviation ~ 1.9
ISO 16900-3
Oil: Media diameter 190 nm | Geom. standard deviation 1.4 - 1.8
Salt: Media diameter 80 nm | Geom. standard deviation 1.4 - 1.8
42 CFR 84
Oil: Media diameter 200 nm | Geom. standard deviation <1.6
Salt: Media diameter 55 nm | Geom. standard deviation <1.86
Based on the measurement of the particle penetration via the 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 min. / max. penetration value.
Overview of standards for filter testing of personal protection masks
EN 143 | EN 143 | ISO 16900-3 | ISO 16900-3 | 42 CFR 84 | 42 CFR 84 | |
|---|---|---|---|---|---|---|
Aerosol | NaCl | PaO | NaCl | PaO | NaCl | DOP |
Mean diameter | approx. 0.06 µm | approx. 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 | approx. 1.9 | approx. 2 | 1.4 – 1.8 | 1.4 – 1.8 | < 1.86 (by additional software module) | < 1.6 (by 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 | required | - | required | - | required | required |
Air flow | 95 l/min | 95 l/min | to be defined | 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 % (by compressed air) | 20 – 40 % (by compressed air) |
Measurement 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 eff. during loading | lowest eff. during loading |
Pause time | 180 s | 180 s | 180 s | 180 s | lowest eff. during loading | lowest eff. during loading |
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 testing according to standard (exposure test) are supplied. Corona discharge with CD 2000 A is integrated.
Operation and automatic printout of the measurement results are therefore easy, even for inexperienced users.
Benefits
Your special advantages
- Test rig working principle better than EN 143, ISO 16900-3, 42 CFR 84, EN 149, EN 13274-7 and GB 2626
- Determination of photometric total penetration for the size range according to standard
- Includes two aerosol generators for NaCl and for oil
- Integrated corona discharger CD 2000 A
- Testing of fractional efficiency, e.g., efficiency in whole size range of 145 nm up to 40 µm
- Exact analysis of filter and filter mask efficiency for SARS-CoV-2 (size approx. 120 nm up to 160 nm). Efficiency also displayed at 145 nm
- Future proof: Works with any kind of aerosol without adjustments
- Further measurement of differential pressure, e.g., as well within different face velocities to simulate test of breathing resistance
- Face velocity adjustable between 1.5 – 70 cm/s
- Product for fast quality assurance and continuous optimization in R&D (display of size distribution)
- Attractive two years maintenance package for availability of test rig
- Can be operated with standard filter threads according to EN 148-1
- Measurement of filter efficiencies up to 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
- Measuring range (total penetration)
- 0.0005 - 100 %
- Measurement range (size)
- 0.145 – 40 µm
- Volume flow
- 1 – 27 m3/h - pressurized operation
- Installation conditions
- +10 – +40 °C
- Inflow velocity
- 1.5 – 70 cm/s (others on request)
- Differential pressure measurement
- 0 – 1,200 Pa
- Aerosols
- Salts (e.g. KCl, NaCl), liquid aerosols (e.g. DEHS), latex particles (PSL)
- Compressed air supply
- 6 – 8 bar
- Test area of the medium
- 100 cm2
- Dilution factor
- 1 : 27 / 1 : 700
- Power supply
- 115 – 230 V, 50/60 Hz
- 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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