Implementation Of Technical Specification For Child Mask

From the industry, recently, the recommended national standard of technical specifications for children's masks (hereinafter referred to as "specifications") was officially promulgated and implemented for children aged 6 and above who are under 14 years of age and below.

According to the introduction, children's respirators can be divided into child protective masks and children's sanitary masks according to their performance. The specifications in the specification are mainly based on three aspects: protective performance, wearing comfort and safety. The specification provides the basis for proper selection and wearing children's masks, standardizing the industry competition order, and strengthening market supervision. It also provides technical support and standard guarantee for children's mask manufacturers.

Before that, many medical institutions, experts from China's Standardization Research Institute, Donghua University, masks and masks, and other individual experts in various fields, such as personal protection, medical and health, ergonomics, textile materials, testing and so on, carried out a large amount of data collection, comparative analysis and design of respirator materials, structures and properties, and designed the mask system and test method that accords with the characteristics of children. This is for professional interpretation.

It is reported that the "standard" requires that respirators should have more than 95% filtration efficiency for non oil particulate matter under 85L/min test flow, and respiratory resistance at 45L/min is not higher than 45Pa. Children's respirators have more than 90% filtration efficiency for non oil particulate matter under 32L/min test flow, 95% above filtration efficiency for bacterial aerosols, and less than 30P for ventilation resistance. This index puts forward higher requirements for mask filters.

Because active and active is the nature of children, children may wear masks and pull tongue when they are wearing masks. Therefore, the Code stipulates that the mask and face contact materials can not be printed or dyed. The requirements for chemical residues and pH values of mask materials are significantly higher than adult standards, especially for ethylene oxide limits of less than 2ug/g. Out. In order to ensure that children are not stained by masks, the color fastness is used as an assessment index in the code, and the reference value is set out in accordance with GB18401-2010's basic safety technical specification for national textile products.

According to the developmental characteristics of children at different ages, the specification divides children's respirators into large, medium and small models, which can meet the needs of children in different age groups. Under the premise of safety and protection, parents are allowed to choose the most appropriate respirators for children.

The industry has warned that children's mental immaturity can not clearly understand the significance of wearing children's masks correctly. Parents and teachers should correctly guide them. They can not reach the goal of wearing children's masks by overdescribing the harsh conditions of the external environment. This may make children rely too much on the safety feeling of wearing masks, do not remove masks and cause heart and lung function to be affected. Ring.

It is also learned that the first standard data of the current "standard" standard refer to the national standard of GB/T26160 "minors' head and face size". This standard is based on a large number of data measured by children of different ages and sexes in different regions of China. The facial features data of 26 thousand children are collected, which basically represent the characteristics of the head and face of minors.