Teach you how to buy green building materials
Improper selection of decoration materials is the main source of indoor environmental pollution. So, how can we choose green, healthy building materials and furniture? Plate: E-grade certification is the standard Hidden dangers: The main health problems that may exist in the plates are the problem of excessive formaldehyde emission. Look at the certification: formaldehyde emissions E1, E2 level refers to the state's formaldehyde release standards, E1 level products can be used directly in the room, E2 level products must be decorated before they can be used indoors. Grades without E1 and E2 are definitely not used indoors. The appearance and quality of the veneer and the big core board can be categorized into three grades: excellent products, enamel and other qualified products. Depend on the feeling: the width of the core strip of the large core board should be greater than 2.5 times its thickness, the two end seams of the adjacent two rows of core strips should be greater than 50mm, the length of the core strip should be greater than 100mm, the gap on the side of the core strip should be less than 2mm, and the gap of the end surface is less than 4mm. The most intuitive method of verifying the plywood's bond strength is to use a sharp, flat blade to cleave along the glue layer. If the glue layer is destroyed and the wood is not damaged, the glue strength is poor. The natural warpage of the entire panel of the veneer should be as small as possible. Look at the brand: In the sheet metal industry, Jilin Fuchun, Hunan Vientiane, Hebei Jinqiu, Dalian Penghong, Qingdao Senli and some other sheet metal manufacturers are highly praised by consumers. Consumers can go to actual homes, Oriental Homes, and Red Star Macalon to buy products in this large building materials market, and product quality is more secure. Wood furniture: CQC certification must have Safety hazards: Unqualified wooden furniture, there may be excessive formaldehyde and benzene. Excessive benzene can cause symptoms such as blurred vision, dizziness, and nausea. Look at the certification: Wooden furniture depends on China Quality Certification Center CQC furniture product certification, it is certified according to the national mandatory standards. In addition, it depends on whether the business can provide inspection reports of authorities above the provincial level. In addition, furniture must provide product specifications, which were only recently mandated. By feeling: Before purchasing furniture, first ask the furniture to be placed in the mall, and then smell it on the furniture surface to see if it has a pungent odor. If you are buying furniture like cabinets, you must open the door to smell the smell inside. If the furniture is left for a while, the pungent odor is still blowing. Needless to say, this must be unsafe furniture. Many consumers often overlook the quality of the hinges, springs and other accessories, which is a must-see, and whether the small parts are solid or not is directly related to the service life of the furniture. Look at the brand: Jimei, Qumei, the Commonwealth, Guangming, Rich Island, Star Dream, Hunter, and Lixing are more recognized brands of furniture integrity. Various certifications charming eyes Whether consulting tiles, floors, plates or furniture, businesses will issue many inspection reports and certifications, such as national environmental protection signs, green building product certifications, national standard product marks, “10 ring†certification, SGS certification, and national mandatory Product certification, exemption marks, and engineering bids are dazzling, and the merchants will also tell you about some “tricks†for choosing safe building materials. It sounds reasonable and looks good, but I still have no idea what to do with it, or listen to the opinions of experts. Tiles: To select Class A radiation levels Potential safety hazards: The hazards of ceramic tiles to the human body are mainly caused by radionuclides. The unqualified ceramic tiles often contain excessive amounts of radionuclides. They live in such an environment for a long time and are harmful to their health. In particular, ceramic tile products contain The radionuclides, which emit long-term radiation to the human body, increase the risk of lung cancer infection. Look at the certification: ceramic tile products will do radioactivity level testing, divided into A, B, C three categories, A is the best, the lowest level of radioactivity, this tile will be marked on the packaging: "radioactivity level: A". Tiles can be divided into polished tiles and glazed tiles. Polished bricks are more harmful than glazed tiles because they contain more elements of radionuclides. Polished tiles must have a national mandatory product certification (abbreviated as "C"), while glazed tiles currently do not emphasize the need to do "three C" certification, and other certifications such as environmental protection signs, quality system certification, and national exemption marks are also very important. It reflects the scale of the production of tile companies. According to the feeling: take a sample brick to observe all aspects of it carefully. Drizzle the ink on the back of the tile to see if its diffusion rate is fast and determine the water absorption rate. The ceramic tile with strong water absorption is not good, easy to expand and crack, and has a strange smell. In addition, the glossiness and fine workmanship of the tiles are also an important criterion for selection. Look at the brand: Ceramic Industry Association announced in 2005 the top ten brands of Chinese building ceramic products: Eagle, Dongpeng, Mona Lisa, Asia, Guan Zhu, Diamond, Smike, Xin Zhong Yuan, Jin Duo, Marco Polo. In addition, Nobel is also a good brand. Wood floor: Ten ring logo can not be lack Potential safety hazards: Inferior wooden floors may contain high levels of formaldehyde, and long-term living in environments with excessive concentrations of formaldehyde can cause respiratory and hematologic diseases. Look at the certification: National Mianjian certification, China's environmental labeling (ie the ten ring logo) and ISO9000, ISO9001, ISO14000, ISO14001 and other system certification. Among them, the Ten Ring logo can identify whether it is a standard for environmental protection floors, and it has a strict certification scope. By feeling: Take a piece of wood and smell it on the side of the groove. If it is more pungent, it means that the amount of formaldehyde released is relatively high. Take two pieces of wooden floor and put it together to see if the concave and convex grooves are tight. If the concave and convex grooves are not tight, the floor will cause degumming after a period of use, and cracks will appear on the floor. After entering the water vapor and dust, the floor will be deformed. From the package. It is not advisable to choose a floor that is very dark or dark in colour because the flooring of this design may have poor wear resistance or poor surface definition. Look at the brand: China Wood Distribution Association floor committee selected 30 kinds of quality after-sales service dual commitment solid wood flooring: living home floor, nature flooring, love cypress flooring, rich profit floor, North American maple love floor. Buy Materials Notices Del Floor Furniture Formaldehyde Interior Decorating Building Materials Market Wood Furniture Flooring Tiles Black Flooring Cabinets Doors Cabinets Doors Tiles Flooring Flooring Tiles ld Tiles
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