PMFT 1000 F

PMFT 1000 F as an all-rounder in the testing of almost all mask and filter types. Test of total penetration better than the standard, exact analysis of filter mask efficiency from 145 nm to 5 µm

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PMFT 1000 M: Atemschutzfiltern, Filtermaskeneffizienz

PMFT 1000 F

PMFT 1000 F as an all-rounder in the testing of almost all mask and filter types. Test of total penetration better than the standard, exact analysis of filter mask efficiency from 145 nm to 5 µm

Description

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, the testing of face masks based on the EN 149/ISO 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.

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 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.

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

EN 143 Particle Distribution.jpg

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

ISO 16900-3 Particle Distribution.jpg

42 CFR 84

Oil: Media diameter 200 nm | Geom. standard deviation <1.6
Salt: Media diameter 55 nm | Geom. standard deviation <1.86

NIOSH_Verteilungen_Plot.PNG

Based on the measurement of the particle penetration via the particle size, the PMFT 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.

Benefits

  • 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 %

Datasheet

Measuring range (total penetration) 0,0005 - 0,1 %
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)

Applications

  • Überprüfung von Vollschutzmaskenfiltern zur Verwendung mit Norm-Filterverschraubungen nach EN 148-1
  • Messung der Gesamtpenetration von Atemschutzmasken
  • Exakte Analyse von Filtermaskeneffizienz für bspw. Coronavirus
  • Medientest für HEPA-Qualität

Downloads

Brief Description
Brief product description in two-pages as PDF
Product Description
Detailed product description as PDF
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 (326 kByte)

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