In early 2020, a novel coronavirus outbreak was identified by experts. Because there is no wonder drug at the moment, it has caused an alert at the beginning. Experts suggest that the public should stay at home to prevent virus transmission; when going out is necessary, wear a mask for self- protection. As the continuous of the epidemic, the demand for medical protective equipment has increased dramatically, resulting in insufficient supply and shortage. At the same time, the outbreak of the epidemic has given many medical supplies manufacturers a huge development opportunity. Most medical supplies manufacturers urgently called together the employees to increase production, in order to provide front-line medical staff with sufficient medical supplies and support the silent "war". Medical protective equipment, such as medical mask, protective suits, medical gloves and other disposable medical equipment can effectively protect people from bacteria and viruses. As an important protective measure for medical staff and the public to avoid bacterial and virus infection, the quality of the product itself is crucial, and its manufacturers need to carry out strict quality control.
As a high-tech enterprise with more than 30 years of experience in research and development of testing instruments, Labthink responded swiftly to join the support for fighting the epidemic, we provide corresponding laboratory testing instruments for medical protective products manufacturers, medical equipment testing institutions and other involved institutions. . Relevant tests and testing instruments are introduced below.
Medical mask (disposable mask) tests
The national standards for mask production are as follows: GB 2626-2006 respiratory protective equipment, GB 19083 Protective Face Mask, GB / T 32610 Daily Protective Mask, YY 0469 Surgical Mask, YY / T 0969 Disposable Medical Mask, etc.
Test items of breaking strength and tensile strength
Test items | Test requirements | Standards |
Axial tensile of breathing valve cover (10N, 10S or 50N, 10S), firmness of head band and mask body, axial tensile of connecting parts | No slippage, break or deformation | Respiratory protective equipment |
Breaking strength of the connecting point between the mask band and the mask body | No less than 10N | GB 19083 Protective Face Mask |
Breaking strength of the mask band and the joint between the mask band and the mask body | No less than 20N | Daily Protective Mask |
Breathing valve cover fastness（10N，10S） | No slippage, break or deformation | Daily Protective Mask |
Breaking strength of mask band | No less than 10N | Surgical Mask |
Mask band static tensile strength | No less than 10N | Disposable Medical Mask |
According to YY 0469 Surgical Mask, the breaking strength at the joint between the mask band and the mask body shall not be less than 10N. The MED-01 Medical Packaging Performance Tester or XLW Series Intelligent Electronic Tensile Testing Machine developed and produced by Labthink are equipped with professional testing grips, they can be used to test the tensile strength and tensile breaking force of the mask band or the joint of the mask band and the mask body.
Ventilative Resistance and Differential Pressure Test Items
Test items | Test requirements | Standards |
Respiratory resistance | Total Inhale resistance should not be larger than 350pa, total exhale resistance should not be larger than250pa | GB2626-2006 Respiratory protective equipment |
Airflow resistance | Air velocity 85L/min, Inhale resistance should not be larger than 343.2pa(35mmH2O) | GB19083 Technical requirements for protective face mask for medical use |
Respiratory resistance | Inhale resistance should not be larger than 175 pa, exhale resistance should not be larger than 145 pa | GB/T32610 Technical specification of daily protective mask |
Differential pressure | No more than 49 pa | YY0469 Surgical Mask |
Ventilative resistance | No more than 49 pa/cm2 | YY/T0969 Single –use Medical face mask |
Labthink TQD-G1 Gas Permeability Tester is recommended, the grips can be customized for these test items
Detection of Ethylene Oxide Residue On Medical Masks
According to YY / T 0969 Disposable Medical Mask, if the medical mask is sterilized or disinfected by ethylene oxide, the residual amount of ethylene oxide shall not exceed 10 μ g / g. The detection of ethylene oxide residue is generally carried out by gas chromatography. The detection of ethylene oxide residue in medical masks can be completed by Labthink GC-7800 Gas Chromatograph. The instrument is featured by its high accuracy, fast analysis and simple operation.