DR251XL2 Particulate Filtration Efficiency Tester

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Protective type testing instrument

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DR251XL2 Particulate Filtration Efficiency Tester

Particulate Filtration Efficiency Tester

Product Description

【Scope of Application】
This method is applicable for the rapid, accurate and stable testing of the particulate filtration efficiency of various medical and daily protective masks, respirators, meltblown fabrics, etc.
【Related Standards】
GB/T 19083-2010 Technical Requirements for Medical Protective Masks 5.4 Filtration Efficiency
YY/T 0469-2011 Medical Surgical Masks 5.6.2 Particulate Filtration Efficiency
GB/T 32610-2016 Technical Specifications for Daily Protective Masks Appendix A Test Method for Filtration Efficiency
GB 2626-2019 Respiratory Protection Self-Contained Filtering Respirators 6.3 Filtration Efficiency
GB 19082-2009 Technical Requirements for Medical Disposable Protective Clothing 5.7 Filtration Efficiency EN 1822-3:2012 EN 149-2001
EN 14683:2005 IEST-RP-CC021.1 NIOSH 42 CFR Part 84 etc.
【Instrument Characteristics】
1. Dual stations, dual channels, dual spectrometers (American TSI), dual generators, truly achieving oil and salt separation testing;
2. Includes loading test methods;
3. Efficiency detection: Using 2 TSI high-precision spectrometers for oil and salt separation, detecting the mass concentration of particles upstream and downstream, ensuring the accuracy and stability of sampling;
4. Flow detection: The system's test flow is mainly provided by external dry and clean compressed air. There is an installed pressure stabilizing and flow control device internally to ensure the stability of the detection flow, and an automatic control system is used, which is simple, fast and stable;
5. Aerosol generation: 2 units, capable of conducting salt and oil tests on the same instrument, ensuring the rapid and stable adjustment of fogging concentration;
6. Resistance detection: The resistance pressure difference of the filter material will be obtained through the static pressure ring of the upstream and downstream test chambers, and a high-precision pressure difference transmitter is used to ensure the accuracy and stability of the pressure difference.
【Technical Parameters】
1. Test flow range: 15L/min to 100L/min, accuracy 2%
2. Cross-sectional area of airflow passage: 100cm² (KN95 mask fixture is optional)
3. Resistance test range: (0~1000)Pa, resolution up to 0.1Pa
4. Filter efficiency test range: (0~99.999)%, resolution 0.001%
5. Test particle size: 0.3μm
6. Aerosol particle concentration: Salticidal: <200mg/m³, Oily: <200mg/m³;
7. Fogging source: NaC1, paraffin or corn oil
8. Fogging gas source: Dry and stable compressed air (optional)
9. Working power supply: AC220V ±10% 50Hz 1.5kW
10. Weight: Approximately 150kg
11. Dimensions: (1000mm×600mm×1600mm) (length×width×height)