The national standard for formaldehyde emission of panel furniture is:

Limited Value.

Formaldehyde (chemical).

Formaldehyde, chemical formula HCHO or CH O, formula amount, also known as antaldehyde. Colorless gas, with a special pungent odor, has a stimulating effect on human eyes, nose, etc. Relative density of gases air = 1), density of liquids.

Melting point -92, boiling point. Soluble in water and ethanol. The concentration of the aqueous solution can reach up to 55%, usually 40%, called formaldehyde water, commonly known as formalin, is a colorless liquid with a pungent odor.

There is a strong reducing effect, especially in alkaline solutions. It can be burned, and the vapor and air form an explosive mixture, with an explosion limit of 7%-73% (volume). The ignition temperature is about 300 °C.

Formaldehyde can be prepared by dehydrogenation or oxidation of methanol catalyzed by metals such as silver and copper, and can also be separated from hydrocarbon oxidation products. It is used as a raw material for pesticides and disinfectants, phenolic resins, urea-formaldehyde resins, vinylon, urotropine, pentaerythritol and dyes.

Industrial formaldehyde solution generally contains 37% formaldehyde and 15% methanol, which is used as a polymerization inhibitor with a boiling point of 101.

On October 27, 2017, the list of carcinogens published by the International Agency for Research on Cancer of the World Health Organization was preliminarily sorted out for reference, and formaldehyde was in the list of a class of carcinogens.

Pro, the methanol value of China's environmental protection standard is less than or equal to 40mg of formaldehyde per 100g.

The European minimum standard is E-1. What is E-1? That is, the formaldehyde content per 100g is less than or equal to 10mg.

PARTICLEBOARD, MDF, PLYWOOD AND VARIOUS WOOD-BASED PANELS ALL USE A LARGE NUMBER OF ADHESIVES, AND THE ADHESIVES MOSTLY USE FORMALDEHYDE AS THE SOLVENT RAW MATERIAL. Furniture made of panels with high formaldehyde content will continuously release toxic formaldehyde gas, which will cause long-term irritation to the eyes and respiratory system of users, resulting in a decline in the function of the lungs, liver and immune system, which seriously endangers health and life safety. The standard E-1 board is 100% imported from Europe, from the material to the production process are subject to the strictest control, the product is regularly sampled and tested by the EU accredited testing center, and its formaldehyde emission is 6-8 mg 100 grams, which is lower than the international E-1 standard of 10 mg 100 grams.

E0 grade board is less than or equal to 3mg of formaldehyde content per 100g, which is the best board on the market now.

Super E0 grade is no formaldehyde.

What is the difference between E1 and E0 in terms of cost? It can be said that the cost of E0 is 2-3 percent higher than that of E1, so some manufacturers may mainly promote E1.

The state has clear mandatory regulations on the release of harmful substances from wooden furniture, including the formaldehyde emission limit of panel furniture.

If the formaldehyde exceeds the standard, then treat it, you can carry out long-term ventilation, let the air convection bring the indoor harmful gases out of the outdoors, you can also use some activated carbon for physical adsorption, and a variety of large-leaf formaldehyde absorbing plants are good. However, all of the above must be carried out for a long time, and cannot be managed all at once. If you want to treat formaldehyde quickly, you can use Huankang aldehyde removal enzyme, which can quickly and effectively control formaldehyde, benzene and other indoor harmful gases.

bar. Furniture or something is more or less smelly, so formaldehyde will emit more, which is also normal. Try to choose samples when choosing, this is placed for a long time and there is no more, or you can smell more when you buy it, if you have bought it back, put it away, and conditionally use some herbal dialin to decompose formaldehyde, which is no secondary pollution and no harm.

The national standards for formaldehyde content of wood products are: E1 less than 10mg 100g, E2 less than 10-30mg 10g, E3 less than 30-60mg 100g; China's GB T14732-93 national standard stipulates that the release of free formaldehyde is less than 40mg 100g.

If you buy this kind of wooden furniture at home, you must first ventilate, ventilation is one of the most convenient, cost-effective and effective methods. I also raised some plants, aloe vera, spider plant, tiger tail orchid, and cactus, I heard my friends say that these are very good and raised some, but it seems that it really has no big effect, but it is still very comfortable to keep at home. Then I used a liquid Mayan blue brush on the furniture, and the effect was really good, after a few days the room had no smell, you can also try it, the health of the family is the most important thing.