A few days ago, the traffic industry standard drafted by the Highway Science Research Institute of the Ministry of Communications completed the formulation of the "Hazardous Substances in Pavement Marking Coatings" and entered into the consultation phase.
It is understood that the standard provides road marking paint, road non-slip coating, reflective marking paint facade, road marking paint glass beads, hot-melt pavement marking paint resin, hot-melt pavement marking paint with polyethylene Wax products in the human body and the environment harmful substances allow limited requirements, test methods, inspection rules, packaging signs and so on.
It is understood that the standard applies to the road in our country on the road marking a variety of traffic marking used in road marking paint, road non-slip coating, reflective marking paint and glass bead products, as well as the production of road marking paint glass beads , Resin for hot-melt pavement marking paint, polyethylene wax for hot-melt pavement marking paint, and pavement marking for road traffic marking in urban roads, airports, ports, factories, mines and residential areas Glass beads used in the production of road marking coatings, resins for hot-melt pavement marking coatings, and polyethylene wax products for hot-melt pavement marking coatings are all referred to The standard implementation.
At present, there is a serious problem of uncontrolled emission of pollutant harmful substances in pavement marking paint in our country.High pollution, such as heavy metals, VOCs, benzene compounds and so on, exists in the pavement marking paint.Now the content of harmful substances in the current pavement marking paint standards Do any technical requirements, resulting in the wanton discharge of harmful substances, serious environmental pollution, product environmental performance is worrying; the same time, the excessive content of harmful substances in road marking paint can also seriously endanger the standard line construction workers and traffickers personal health. Therefore, in view of the status of unknown and excessive content of harmful substances in pavement marking paint, the composition of harmful substances in pavement marking paint in China is studied and analyzed, and the corresponding qualitative and quantitative detection methods are developed. The technical indexes of important hazardous substances are studied and formulated It is very urgent and necessary for the transportation industry standard for "the limit of harmful substances in pavement marking paint" to control and improve the environmental protection of pavement marking paint and reduce the emission of pollutant harmful substances in pavement marking paint.
At present, with the increasing awareness of environmental protection among the government, enterprises and residents, standards and regulations have become a very important threshold for market access. Since 2002, the coating industry has been continuously improving the standards for toxic and hazardous substances in products. At present, GB18581 "Indoor decoration materials, solvent-based coatings limited to harmful substances in wood," GB18582 "interior decoration materials, interior wall coatings harmful substances limit", GB24408 "building wall paint with the limit of harmful substances," GB24409 "Car paint harmful substances Limited Edition ", GB24613" Limits of Hazardous Substances in Coatings for Toys ", GB24410" Limits of Hazardous Substances in Waterborne Wood Coatings for Interior Decoration Materials ", GB30981" Limits of Hazardous Substances in Construction Steel Structure Corrosion Resistant Coatings ", GB8771" Soluble Elements in Pencil Coatings Maximum limit "and other mandatory national standards, GB / T23994" contact with the human body consumer products with certain harmful elements in paint limited "national standards recommended, in addition to the publication of JC1066" building waterproof coatings harmful substances "and other industry standards and DB51 / T1769 "solvent-based wood coatings with dilution Agents, hazardous substances limit "and other local standards.These standards will have a far-reaching impact on the standard operation of the coatings industry.