Radiation Protection Industry Association: The shielding efficiency of radiation protection clothing fabrics adopts national standards
Regarding the issue of national standards for radiation protection clothing that pregnant mothers are concerned about, Huang Jianhua, member of the National Technical Committee for Standardization of Electromagnetic Shielding Materials and spokesperson of the Shanghai Electromagnetic Radiation Protection Association, said: Although there is no national standard for radiation protection clothing, the fabrics of radiation protection clothing are. There are national standards for the shielding efficiency of the fabrics used by companies in the production of radiation-proof clothing.
Huang Jianhua said that in recent years, relevant national departments have done a lot of work in the standardization of radiation-proof textiles, and have formulated many relevant standards for yarns, fabrics, testing methods, occupational radiation-proof clothing, etc. These standards have become the main specifications for enterprises in the radiation protection industry in product design, research and development, and production.
As for why radiation protection suits and national standards cause controversy, Huang Jianhua said, it is mainly because the public does not know much about national standards, which leads to misunderstandings.
It is reported that my country only issued a recommended standard for “Microwave Shielding Protective Clothing” in December 2009, and there is no mandatory national standard for the entire radiation protection product.
Huang Jianhua said that the radiation protection industry is an emerging industry. The national standards of any industry will grow with the growth of an industry and take a long time to complete. The development of every industry is developed first, followed by national standards. National standards are not easily produced.
It is understood that there are nearly 500 standardization technical committees under the jurisdiction of the National Standards Committee. To formulate national standards for radiation protection clothing for pregnant women, some basic standards, method standards, safety standards, etc. are used, and these standards belong to different standardization technologies. The committee is responsible for formulating.
In other words, only when all these standards are put together can national standards for radiation protection for pregnant women be formulated. According to industry insiders, it may take three years to put these standards together.
According to the level of standards, my country’s standards are divided into national standards, industry standards, local standards and enterprise standards. The National Product Quality Law stipulates that products produced by any enterprise must have standards. If the products produced by an enterprise currently do not have national standards, industry standards or local standards, then the enterprise must formulate corporate standards and file them with the quality inspection department in the place of registration. If the products produced have national, industry or local standards, the company can also formulate corporate standards and produce according to the corporate standards, but the quality requirements for products in the corporate standards are higher than the national standards. In other words, national standards are standards with high levels but low requirements.
Huang Jianhua said that pregnant mothers can rest assured because in the radiation-proof maternity clothing industry, companies have their own corporate standards and adopt current national and industry standards in the testing of key indicators. Indicators such as pH value and formaldehyde content are tested according to GB18401-2010 “National Basic Safety Technical Specifications for Textile Products”. The shielding effectiveness of fabrics is tested according to SJ20524-1995 “Measurement Method of Material Shielding Effectiveness”, and the industry requires production companies to perform quality inspection Department filing.
Gu Hongfeng, a member of the National Clothing Standardization Technical Committee, said that currently, the national standard for testing radiation-proof clothing is still being formulated, and the relevant departments have not yet quantified the relevant data and indicators. However, some people on the Internet say that radiation-proof clothing is useless, and they should come up with their own basis.
In Gu Hongfeng’s view, it is certain that radiation-proof clothing has an effect. The only question is how much effect it can have and how much radiation it can prevent. 100% radiation protection is absolutely impossible. Just like ultraviolet protection, this kind of protection is relative. Yes, of course, the fake radiation-proof clothing for pregnant women definitely has no protective function.
However, it is indeed difficult for consumers to clarify the differences between these standards. For the sake of consumers, all parties are calling: Can special measures be taken to speed up the introduction of national standards for radiation protection?
The authoritative national testing department said: It’s definitely useful, it’s just a question of how much it attenuates
The Shanghai Institute of Metrology and Testing is currently one of the authoritative institutions for testing radiation-proof fabrics. Lu Fumin, secretary-general of the National Technical Committee for Standardization of Electromagnetic Shielding Materials and chief engineer of the Shanghai Institute of Metrology and Testing Technology, said: “It is certain that radiation protection clothing for pregnant women has an effect.”
According to Lu Fumin, they have previously conducted anti-electromagnetic radiation tests on many brands of radiation-proof clothing for pregnant women on the market, including slings, vests and other styles, and found that the radiation-proof clothing on the market can block most of the electromagnetic radiation. “Of course, to It is difficult to achieve 100% radiation protection. Even if the attenuation reaches 99%, there is still 1% that cannot be blocked. During experiments, we found that radiation-proof clothing for pregnant women mainly protects the heart and belly of pregnant mothers (that is, where the baby is). The effect will be weaker near the edges. Moreover, the protective effect is closely related to the fabric and style of the clothing. ”
The maternity wear market is quietly picking up
Although the radiation protection clothing industry suffered heavy losses due to misinformation in the early stage, and some shopping malls even considered withdrawing the cabinets in the early stages of the incident, but because no national department has issued an order, it was discovered that it was a market misinformation. At present, the market situation has quietly Pick up.
The radiation protection incident that lasted for many days gradually subsided, and the industryInsiders call on: Chinese consumers are extremely sensitive to consumer safety. We need more scientific and rational consumption. National authorities should check and clarify relevant matters in a timely manner. After all, consumers are not professionals, and we should try to avoid Consumers are troubled by consumer safety incidents.
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