![]() ![]() Please read it carefuly, you can solve the most of the problems by yourself if you have some questions while using the instruments. LISUN GLE-20 Face Masks Particulate Filtration Efficiency PFE Tester were in the market for more than 10 years, LISUN engineers service team already summary the most of the After Sales Questions and Answers in the above link. ![]() LISUN GLE-20 Face Masks Particulate Filtration Efficiency PFE Tester – After Sales Questions and Answers. Test Report (PDF Report and Result Receipt, can also print in English): Control system: touch-screen computer and test software have been configured to automatically test gas concentration and filtration efficiency, save, output, query, copy and export test data, support A4 paper printing and small bill printing test results.Equipped with glass rotor flowmeter, vacuum pump and gas electromagnetic flowmeter.Configure temperature and humidity sensor, real-time display of ambient temperature and humidity (temperature and humidity requirements: 25 ℃ ± 5 ℃, 30% RH ± 10% RH).Equipped with aerosol particulate static neutralization device.The whole particle anti-leakage design protects the safety of laboratory personnel.A high-precision particle concentration counter (the core component of the sensor imported from the United States) is used to measure the number of aerosol particles.The aerosol generator is used to produce continuous and stable aerosol particles, which is convenient for filling the solution.The test does not interfere with each other to ensure the accuracy of the oil and salt test. The oil and salt two-in-one test and the two sets of test hardware systems are completely independent.Power: AC220V 50Hz(120V/60Hz can be customized).The system contains two independent aerosol generators: oily and salty aerosol generators containing two particle counting sensors, one particle concentration sensor and one particle generator.Aerosol: NaCl (optionally with DOP, DEHS, paraffin oil, corn oil).Dynamic detection range: 0.001-100 mg / m³, accuracy 1%. Geometric standard deviation of particle size distribution: salt particles≤1.86, oil particles≤1.60. Differential pressure sensor range: 0 ~1000pa.Filtration efficiency Particulate concentration: (0.001-200) mg / m³.Filtering efficiency sampling frequency: 1-9999 times / min can be set arbitrarily.Filtration efficiency detection range: (0.001 ~999)%.Filtration efficiency detection flowmeter range: (10 ~ 100) L / min, accuracy level 2.5.Standard Requirement: Using sodium chloride particles to detect KN filter elements, and use dioctyl phthalate or equivalent oil particles (or paraffin oil) to detect KP filter elements.ĭuring the test, the filtration efficiency of each sample should always meet the requirements of Table 2 YY / T 0969-2013 “Standard for disposable medical masks”.GB 24539-2009 General technical requirements for protective clothing and chemical protective clothing.GB / T 19083-2010 “Technical Requirements for Medical Protective Masks”.GB / T 19082-2009 “Technical requirements for medical disposable protective clothing”.GB / T 32610-2016 “Technical Specifications for Daily Protective Masks”.At the same time, it also refers to the advanced design concepts of similar international equipment (such as the American TSI company), based on the principle of “ European standard EN1822-3: 1998 single-sheet filter material test ”, but it is suitable for the test status of domestic related industries It is designed and manufactured according to YY0469-2004 “Technical Requirements for Medical Surgical Masks” and GB2626-2006 “Respiratory Protective Equipment Self-Suction Filter Anti-Particle Respirator”.It is widely used for medical device inspection centers, safety protection inspection centers, labor protection inspection centers, drug inspection centers, disease prevention and control centers, textile testing centers, hospitals, mask manufacturers, etc. It is used to test the particulate filtering efficiency of daily protective masks and medical masks, and to determine the obstruction performance of ordinary fabrics and medical protective masks against a constant flow of airflow. GLE-20 is an oil-salt two-in-one Face Masks Particulate Filtration Efficiency PFE Tester. ![]()
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