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Anti Coronavirus in stock In order to protect people’s safety and avoid the spread of viruses, medical experts recommend that you travel and wear masks in public places. Masks have become a key material that needs to be protected by every possible means in the prevention and control of epidemics. Masks have become necessary protective equipment against the epidemic. In the face of the urgent demand for masks and the large demand, the related enterprises actively resumed production and transferred production to work overtime to fight against the epidemic. The supply of masks continued to increase, and the situation of tight supply and demand was alleviated to a certain extent. Along with this is the demand for masks for reinstatement, reinstatement, and reinstatement, and what standards should consumers choose according to. Chinese mask standards are divided into three categories: civil mask standards are represented by GB / T32610 « Technical Specifications for Daily Protective Masks », which are mainly aimed at air quality polluted environments; protective mask standards for industrial fields are « Filtered anti-particulate respirator » is representative, mainly used in industrial workplaces; standard standards in the medical field are: GB 19083-2010 « Medical protective mask technical requirements », YY 0469-2011 « Medical surgical mask », YY / T 0969-2013 « Disposable Medical Masks » is mainly used in the medical field. According to the mask usage scenarios and the user group, what standard should the hygienic masks used by ordinary consumers be produced, causing confusion to the production enterprises and market supervision. Main technical indicators and detection methods锛?/strong> 1. Basic requirements. The basic requirements are mainly the safety requirements for the materials used in the mask body, the auxiliary materials for the mask, and the design of the mask, which reflects the standard’s concern for the safety of consumers wearing masks. (1) The mask should be able to cover the mouth and nose safely and firmly, and should have good facial fit and no odor. This clause is a basic requirement for the appearance design of masks. Under the premise of beauty, mask designers also need to study the characteristics of consumers’ faces to ensure that the masks have a good fit with the wearer’s face, laying a foundation for the realization of protective functions. (2) The raw materials of the mask should not use recycled materials, and should not contain carcinogenic, allergic, skin irritation and other harmful substances. The residual amount of the restricted substances should meet the relevant requirements and must not be bleached with chlorine. This clause is a requirement for the materials used in the production of masks, and is the most basic requirement for the safety performance of masks. However, the standard does not make specific requirements for materials. Enterprises are encouraged to use new materials that meet the relevant requirements for civilian masks. (3) There should be no sharp points and sharp edges that can be touched by the mask, and it should not cause damage to the wearer. There should be no exposed metal objects in the mask for children. This clause is from the perspective of protecting the wearer’s safety, the requirements for the accessories and the design of the mask. Enterprises need to pay attention to meet the requirements of this article when choosing auxiliary materials. (4) The mask should be easy to put on and take off, and there is no obvious feeling of pressure or tenderness during wearing, which has little effect on head movements; ear masks should be used for children 鈥檚 masks, and there should be no removable small parts. The mask band should not have a free end. Masks equipped with nose clips shall be made of plastic materials. This clause is for safety and comfort considerations, and the requirements for mask design and auxiliary materials, especially children are lively and active. The auxiliary materials and design of masks must not have any potential risk factors for children, and manufacturers need to pay special attention. (5) Appearance: The appearance of the mask should be neat and intact, and there should be no damage or stains on the surface. Masks that come into direct contact with the skin should not be stained. Because the mask is directly protected on the mouth and nose, for safety reasons, it is required that the mask and the skin directly contact the fabric must not be dyed, but this requirement does not apply to the outer layer of the mask. Whether the outer layer of the mask is dyed and whether there are various patterns are designed by the enterprise. , The standard does not require it. But if it is dyed, it is necessary to test the color fastness to dry rubbing. 2. Length of nose clip. There are different designs for the shape of masks. In order to enhance the fit with the face, most companies use nose clips, but some companies have adopted the structure design to achieve fit with the face without using nose clips. The standard encourages companies to personalize their designs and provide consumers with more fashionable masks while meeting barrier needs. For masks that use nose clips, the minimum length of nose clips for adult masks and child masks is specified separately. 3. The strength of the connection between the mask band and the mask body is broken. The breaking strength of the connection between the mask band and the mask body is one of the factors to ensure the firm wearing of the mask. The standard specifies that the breaking strength of the connection between the single mask band and the mask body is not less than 5N. 4. Bacterial filtration efficiency. Bacteria are a kind of single-celled organisms, which may cause local tissues and systemic inflammatory reactions when invading the human body. As a sanitary mask used in daily environments, the efficiency of bacterial filtration is a basic protective function. The standard bacterial filtration efficiency index refers to the relevant index of YY0469-2011 « Medical Surgical Masks », which specifies that the bacterial filtration efficiency is not less than 95%, which meets the needs of ordinary consumers for bacterial protection after wearing masks. 5. Particle filtration efficiency. Particulates are substances of varying sizes suspended in the atmosphere, including dust, droplets, aerosols, etc. Mask filter materials can function to filter out these considerations. Particulate filtration efficiency is an internationally accepted evaluation index for breathing filter materials. Combined with the scope of application of this standard and the technical level of melt-blown filter materials, this standard specifies that particulate filtration efficiency is not less than 90%. 6. Ventilation resistance: This item is an index of wearing comfort of the mask. The index value refers to YY0469-2011, and the ventilation resistance of the mask material for adults is set to 鈮?9Pa; according to the technical level of domestic mask filter materials, the ventilation resistance of the mask material for children is set to 鈮?0Pa in consideration of the physiological condition of children. 7. Residual amount of ethylene oxide. This item is a safety indicator. Ethylene oxide is an organic compound that is a toxic carcinogen and is widely used for sterilization. Most mask manufacturers use ethylene oxide to kill microorganisms. After the mask is sterilized with ethylene oxide for a certain period of time, the ethylene oxide will evaporate, leaving only trace residues. The state has control requirements on its residues. The standard is based on GB19083-2010 « Technical Requirements for Medical Protective Masks », which stipulates that the residual amount of ethylene oxide in civil sanitary masks treated with ethylene oxide is 鈮?0渭g / g to protect the wearer’s safety. 8. Dyeing fastness (dry rub resistance), formaldehyde content, pH value, decomposable carcinogenic aromatic amine dyes. The above index items are the basic requirements for textile materials. The indexes are set for masks for adults and masks for children, respectively, in accordance with the relevant regulations in accordance with GB18401 « National Technical Standard for Basic Safety of Textile Products ». The formaldehyde content of adult masks is the same as that of children masks. 9. Microbiological indicators. Microorganisms are tiny organisms that are invisible or unclear to the naked eye, and are closely related to human life. Setting microbial indicators is a basic requirement for hygiene products. The standard refers to GB15979-2002 « Sanitary Standards for Disposable Hygiene Products » and sets index values for common microorganisms. 10. Flame retardant performance. Children have poor ability to deal with emergencies. Considering that the fire may cause harm to children, the flame retardant performance of children’s masks is specified. For the index, refer to YY0469-2011 « Medical Surgical Masks ». Set the burning time of the masks after leaving the flame. Greater than 5s. 11. Test method. The testing methods in this standard refer to the relevant content of the current national standards and industry standards. It has strong operability and a high degree of market acceptance. It can meet the testing needs of this standard and can be quickly used by related companies and testing institutions.Anti Coronavirus in stock website:http://www.neptunusmedical.com/anti-coronavirus/