Formaldehyde is a colorless, irritating, and water-soluble gas. It has the function of coagulation protein, and its 35%~40% aqueous solution is called formalin, and it is often used as a solution for dipping specimens.
Formaldehyde is a relatively highly toxic substance. Formaldehyde ranks second in the priority list of toxic chemicals in China. The formaldehyde content of a newly renovated house can reach 0.40 mg/m3, and in individual cases it can reach 1.50 mg/m3.
Environmental protection materials are not pollution-free, 100 grams of formaldehyde content in wood-based panels is less than 9 milligrams can be called environmental protection materials, but the problem is that we in the decoration, a large room is impossible to use a wooden panel for decoration.
According to the formaldehyde release amount of 8 mg per 100 g of formaldehyde, the content of formaldehyde in a plate of 30 kg is 2400 mg. It is decorated with 40 pieces of such plates, and the content of formaldehyde is as high as 96,000 mg. Therefore, more environmentally friendly materials are used, and the living space is limited, and pollutants will be released into the air.
The decoration company’s contract promises many of them to use “environmentally friendly materials in the decoration process and leave a penalty of 10â€. This commitment has led many people to mistakenly believe that the air quality is also qualified.
There are E1 and E2 grades in the artificial board. The E1 sheet is an environmentally friendly green sheet with a release of less than or equal to 9 milligrams per 100 grams of formaldehyde. The E2 grade sheet, the amount of formaldehyde released per 100 grams is less than or equal to 30 milligrams, which is the national standard plate, can not be used directly for interior decoration. If even the E2 level fails, it is an unqualified plate.
Buying a plate requires a look at the formaldehyde emission identified above.
Under normal circumstances, the longer the house is used, the less residual formaldehyde in the indoor environment; the higher the temperature, the greater the humidity, the more conducive to the release of formaldehyde; the better the ventilation conditions, the release of formaldehyde from building and decoration materials. The corresponding faster, the more conducive to the cleanliness of the indoor environment.
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Hundreds Flooring Co., Ltd. , http://www.chmarbletile.com