The newly revised national mandatory standard for plastic runways, "Synthetic material surface sports venues for primary and secondary schools" has been officially implemented.
Since 2015, due to the outbreak of 'poisonous runway' incidents in primary and secondary schools across the country, the Ministry of Education has stopped the construction and maintenance of plastic track and led the revision of the new national standard for plastic track. Before the implementation of the new national standard, the reference for the plastic runway of primary and secondary schools The standard is the "Sports Equipment and Venues for Primary and Secondary Schools, Part 11: Synthetic Surface Sports Grounds" (GB/T19851.11-2005), which was issued in 2005. The appearance and specifications of the runway in this standard, marking lines, The flatness, thickness, slope, physical and mechanical properties and corresponding inspection methods are all specified. In terms of safety and health, the requirements are 'in accordance with relevant national standards'.
The new national standard was drafted by the Education Equipment Research and Development Center of the Ministry of Education, Tsinghua University, Shenzhen Institute of Metrology and Quality Inspection, and other units. After many expert meetings and field visits and sampling across the country. After testing and collecting hundreds of enterprise products on the market for multiple verification experiments, the “Sports and Surfaces of Synthetic Materials for Primary and Secondary Schools” (GB36246-2018) was officially released by the State Education Bureau on May 7, 2018, at intervals. It was officially implemented today (November 1) in the past six months. The new national standard for this implementation is the national mandatory implementation standard, and the old national standard that was replaced is the recommended national standard; this is also one of the biggest changes in the old and new national standards.
In addition to the big change that has become a mandatory implementation standard, this new national standard adds a very important content to the old national standard, that is, the raw material use of the runway, paving and other aspects need to issue a type inspection report. The validity period of the report is In 1 year, only those enterprises that have obtained the qualifications of sports facilities through inspection can enter the market.
At the same time, in response to the vagueness of the chemical performance specifications in the old national standard in 2005, the new national standard also incorporates chemical properties into the standard in addition to physical properties, and has introduced perfect limits and testing requirements for hazardous substances since the raw material.
Compared with the old national standard, the new national standard has 11 more restrictions on hazardous substances (a total of 18 items), and is subdivided into three categories: content, release, and smell.
It is worth mentioning that this new odor level indicator requires that the synthetic surface layer of the runway should be close to the odorless state in practice. When the odor level is greater than level 3, it should be analyzed and rectified or replaced.
Compared with the old national standard, the new national standard implemented this time has undoubtedly made great progress, but the actual improvement of the new national standard compared to the old national standard still needs to be reflected by the standard landing situation and implementation. This process needs The joint observance of the production enterprise, the construction party, the bidding party and other units, only strict control at all levels, the implementation of the standard requirements, in order to eliminate the 'toxic track' from the root cause.