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...
B.1 General WARNING — Staphylococcus aureus is a pathogen. The relevant national provisions by law and hygienic instructions when dealing with pathogens shall be complied with. B.2 Principle A specimen of the mask material is clamped between a six-stage cascade impactor and an aerosol chamber. An...
Huanyi's 1m3 formaldehyde emission test chamber using library board unit combination. The interior of the box is made of stainless steel and the exterior is painted with epoxy resin to increase the appearance and cleanliness. External configuration:...
1. GB 19083-2010 technical requirements for medical protective masks At present, the only compulsory national standard in medical masks. Masks that meet the requirements of this standard can be used in medical work environments to filter particulates in the air and block droplets, blood, body fluids,...
1 Taking position: The sample can be taken from the main surface of the product or the product itself can be used as a sample. However, if the product cannot be tested or judged, it can be replaced by a test piece between the parties. . 2 Dimensions: The standard size of the test piece is 150 × 70mm, or 100 ×...
1. Standard: GB2626-2019 respiratory protection self-priming filter anti-particle respirator 2. Manufacturer: Dongguan Huanyi Instrument Technology Co., Ltd. 3. Applicable items Mask Filter Tester is used to test the protective effect of daily protective masks and other types of...
With the outbreak and continuation of the epidemic, wearing a mask is the most effective way to prevent the spread of the virus in this fight against the new coronavirus. For a time, medical masks became a scarce resource, causing many people to start making masks themselves, but the design and production of medical...