Entrance decoration restaurant decoration formaldehyde furniture home decoration home decoration decoration Biogas Desulfurizer,Biogas Generator ,Biogas Plant Design ,Biogas Plant Model Desiccant & Sorbent Co., Ltd. , http://www.nbactivatedcarbons.com
According to the requirements of national standard GB 18580-2001 "The formaldehyde release limit of interior decoration materials for artificial boards and their products", the amount of formaldehyde released directly from the large core board in the room must be ≤ 1.5 mg/L (dryer test); Products with formaldehyde emission ≤ 5 mg/L (dryer test) must be finished before being allowed to be used indoors. This provision clearly states that, starting from July 1, 2002, the market will stop selling products that do not meet the national standards. In fact, it is still difficult to meet national standards. There are many sheets of formaldehyde that exceed the standard in the market, and some unqualified products are also marked with a certain green certification mark.
How to buy and use big core board?
How to choose a big core board:
Although the market of the Daixin board is mixed, it is still not standardized, and consumers have a certain degree of difficulty in picking it up, but there are still some points to buy.
One is to see. The most important factor in determining the price and quality of Daxinban is production technology. Generally, the big core boards currently on the market are divided into two types: hand-to-machine and machine-to-machine. The machine boards are tight and flat, with little dimensional deviation. The quality of the hand jigsaw is inferior to the machine jigsaw. The quality of the slats is poor. There are more voids in the board, the board surface is rough, and the glue used is also relatively poor. Although the board is cheap, it can be purchased for 40-60 yuan. There are many quality problems in use. The production process is also an aspect that affects the quality of the Daxin board. The well-made large core plate is sanded at least twice on both sides. The core of the big core board is polished once, and then it is ground again after sticking the top skin. This is because the thickness of the core is inconsistent. If it is not polished thoroughly, the panel will have edges and corners, and it will warp and deform when it is used. Some plates are polished only after they have been applied to the dough. When the cores are rough, it will be very difficult to smooth them out. Although the sanding is applied after the skins are applied, the rough and uneven surface of the cores will cause the bonds to stick and bulge. ,Affect. Observe carefully whether the surface of the daxin board is smooth, whether it is warped or deformed, whether it is blistering or sagging, whether the color is uniform, whether there is abnormal discoloration, oiliness, etc.; whether there is decay, cracks, wormholes, thrift, etc. Be careful not to ignore the thickness and measure it yourself.
The second is smell. The qualified core board has poor gum compounding, low monomer polymerization or multiple free components, unpleasant odor or heavy odor and irritation.
The third is listening. It is best to listen to experienced family members or friends and give them advice. Do not only look at the price, some high prices, their quality is not necessarily high.
The fourth is test. If there are conditions, if the decoration is completed and the amount of plates is large, it should be tested.
How to use big core board?
Should pay attention to the following aspects: First, a reasonable determination of the amount of use. The use of large core boards in interiors is as small as possible, and the pursuit of simplicity is simple, or the use of solid wood furniture. Do not use more than 20-30 sheets in a room with 100 square meters of large core board. If you use too much, it will cause excessive formaldehyde in the indoor environment.
The second is reasonable treatment. The panel-type formaldehyde remover is used for the treatment of the wood-based panels and is carried out during the renovation.
The third is reasonable purification. After the decoration, surface treatment is performed and the furniture type formaldehyde remover can be applied well.
The fourth is reasonable maintenance. During use, clean up once in six months and use wax type formaldehyde remover to maintain good results.
The above formaldehyde remover series can be consulted with the China National Environmental Protection Technology Research Center, and can also be consulted with branches of the Center.
Indoor Air Quality Testing After indoor decoration, indoor air testing must be performed. After finishing the decoration of some homes, it feels like there is not much odor and there are not many problems. Actually, it is not as simple as this. The amount of harmful substances released in different seasons is different, and it is relatively low in winter. The center developed a rapid formaldehyde detection product for indoor formaldehyde detection.
Consumers can use different air purification and treatment measures based on different pollutants after testing. The center developed a series of purifier consumers can use according to different circumstances. Don't use air fresheners, these can only play a role in covering, and often increase the harm to consumers.
Daxinban scientific name is Blockboard, is a kind of plywood with solid wood core, is widely used to make desks, beds, cabinets, kitchen furniture, doors and windows sets, heating sets and other load-bearing and decorative furniture. It is the main plate for home decoration and furniture manufacturing, and it is closely related to people's family life. With the constant warming of home improvement, the usage and sales volume of Daxin board continues to increase. How is its quality, how is the amount of formaldehyde released, how is it selected, and it has become a hot spot for consumers and a blind spot for knowledge. On March 13th, China Consumers Association announced the results of large core board tests and comparative tests of 33 brands sold in the Beijing market. As an ordinary consumer, the staff randomly purchased 33 brand products produced in Beijing, Shanghai, Hebei, Shandong, Jilin and Liaoning from some of the Beijing-based building materials home improvement markets. The results of the test are astonishing. There are quality problems in the thickness, bonding strength, and moisture content of the Daxinban. In particular, the formaldehyde emission index test shows that according to the national standard regulations implemented on January 1, 2002, 33 The amount of formaldehyde released from each sample was only one standard. After the announcement of this news, such as a stone hit the water, caused a strong response among consumers.