Today, when the smog is serious, many families have chosen air purifiers to purify the family space. With the comprehensive development of China's air purifier industry, the industry standards for air purifiers are constantly being improved, January 17 Among the new national standards for air purifiers that have...
Maybe everyone has some understanding of the formaldehyde emission test chamber, and also has a plan to buy it, but as a sophisticated instrument, the formaldehyde emission test cabin is far less simple than you think, not like clothes Just buy it back and you can wear it. The use of formaldehyde emission test...
Purpose:It is used to measure the inspiratory resistance and expiratory resistance of respirators and masks under the specified conditions. Applicable to the national labor protection supplies inspection agency, mask manufacturers related inspection and inspection of ordinary masks, dust masks, medical masks,...
The Huanyi’s xenon lamp aging test chamber is a xenon arc lamp, which simulates the ultraviolet rays, visible light and infrared rays in the natural climate to use light to age the goods, and then quickly calculate whether the equipment is resistant to light. It is mainly suitable for manufacturing...
Standards: GB19083-2010: Medical protective mask technology; YY 0469-2011: surgical masks; YY / T0691-2008: Test method for resistance to synthetic blood penetration of medical masks for infectious pathogen protective equipment (fixed volume, horizontal spray) EN 14683-2019 Medical...
Features 1.1 Adopting a suction air source as the power source of the instrument, which is not limited by the space of the test site; 1.2 Equipped with high-precision pressure difference sensor, digitally display the pressure difference on both sides of the sample; 1.3 The special sample holder ensures that...
Main Purpose： The medical mask synthetic blood penetration tester is used to measure the penetration performance of liquid-derived liquids such as synthetic blood to evaluate its safety protection performance. Standard： GB19083-2010: Medical protective mask technology; YY 0469-2011: surgical...
1.The aerosol challenge apparatus is outlined in Fig. 1. 2.Deliver the challenge to the nebulizer using a peristaltic or syringe pump. Connect tubing to nebulizer and peristaltic pump and into the challenge suspension; purge tubing and nebulizer of air bubbles. 3.Perform a positive control run...
Test Methods 1.Bacterial Filtration Efficiency—Determine the bacterial filtration efficiency as directed in Test Method F2101. HYFE-50 Medical surgical mask bacteria filtration efficiency tester 2.Differential Pressure—Determine breathing resistance or differential pressure as directed in EN...
1. Standards: HJ / T 4002007 "Sampling and measuring method for volatile organic compounds and aldehydes and ketones in vehicles" GB / T 27630 "Guide to Air Quality Evaluation in Passenger Cars" 2. Test equipment:Automobile volatile organic compounds test cabin,vehicle VOC emission test...
Test specimens Test specimens shall be cut from complete masks. A complete mask may be used in place of a cut specimen, as long as the extremities are removed, the mask is laid flat and all layers are incorporated (in case of folded masks unfold the mask in order to test a surface as flat as possible)....
Test apparatus 1 Six stage cascade impactor, the arrangement is specified in Table B.1. 2 Nebulizer, capable of delivering particles with a mean size of (3,0 ± 0,3) μm when in contact with the cascade impactor. 3 Aerosol chamber, glass, 600 mm long and 80 mm in external...
