Plastic track new national standard increase limit of multip
Article author：admin Popularity：Publication time：2019-04-28 09:04
The limits of individual indicators for primary and secondary schools will be strictly controlled
According to the currently announced scheme, the mandatory content of this revised standard is mainly two aspects: the chemical properties of the synthetic material surface sports site finished products and raw materials harmful substances limit requirements; physical absorption impact absorption value, tensile strength. The new publicity plan also stated that the revision will mainly implement mandatory requirements from the perspective of ensuring the health and safety of primary and secondary school students. There will be specific standards and requirements for finished sports products, solid raw materials, and hazardous substances that may be released. The limit requirements of these harmful substances will be based on the existing mandatory standards. For the actual situation of primary and secondary school students, the limits of individual indicators will be strictly controlled.
Increase runway design and construction and environmental acceptance
It is understood that the current "Sports Equipment and Sites for Primary and Secondary Schools Part 11" Standard Surfaces for Synthetic Surfaces is implemented on October 1, 2005, with a longer time limit and lack of relevant toxic and hazardous substances. For example, in the existing national standard, only the toxic substances in the runway, including benzene, toluene, xylene, free toluene diisocyanate, lead, cadmium, chromium, mercury, etc., are specified.
In recent years, a large number of schools have used plastic track to replace the original playground materials due to upgrading and upgrading. However, due to the lack of effective supervision, some unscrupulous merchants are seeking for profit and using toxic materials. The public documents show that the “old national standard” lacks relevant regulations on toxic and hazardous substances, and some technical parameters need to be revised according to the progress of existing testing methods. Not only that, but the design, construction, environmental protection and acceptance of the pavement layer of synthetic materials are not covered before. The revision intends to increase the design, construction, environmental protection and acceptance, and at the same time, it is proposed to lay the surface of the synthetic material sports ground. Technical requirements, quality standards and testing methods. It is reported that the deadline for solicitation of the "new national standard" publicity draft is November 22, 2016.
Since 2014, Beijing, Suzhou, Wuxi, Nanjing, Changzhou, Shenzhen, Shanghai, Hebei and other schools have had "poisonous runway" incidents, causing some students to have nosebleeds, allergies, dizziness, nausea and other symptoms. On the eve of the school start in September this year, the Beijing Municipal Education Commission had asked the district education committees to re-examine the plastic playgrounds of primary and secondary schools and kindergartens in the district in light of their own circumstances. In accordance with the requirements of the Municipal Education Commission's "Circular Measures for the Removal of Plastic Sports Fields in Primary and Secondary Schools and the Summer Decoration and Renovation Work", the district education committees shall promptly carry out a transitional recovery of the "problem playground" after eradication to ensure the normality of teachers and students after the start of school. Education and teaching.
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