In the national health standards for drinking water, the maximum formaldehyde residue limit is 0.9 mg/L, which means that E0 is the highest standard for indoor air, which can be related to the health of food, drinking water and other related products. The safety standards are comparable. The E0 health standard is the minimum standard for indoor indoor formaldehyde pollution limits, and even exceeds the level of food safety. The requirements are so strict that it is only used as a recommended standard for sheet producers in the newly issued national standards.
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The origin of the E0 standard
The "E1" and "E2" originating from Germany are the guiding norms for the release of formaldehyde from wood-based panels and their products. F4 is a guideline for the release of formaldehyde from wood-based panels and their products. As a developing country, China's standard system for wood-based panels and their products refers to things from Europe and Japan. However, “E0†is a more stringent grade mark for the release of formaldehyde from wood-based panels and their products, not a complete foreign product, but It has distinctive Chinese characteristics. Because Europe and the United States do not have the concept of "E0", Japan does not, but China has.
Initially, the two standards E1 and E2 were produced in Germany, and later introduced as European standards. On July 1, 2002, China promulgated and implemented the “10 mandatory national standards for hazardous materials for interior decoration materialsâ€, which is E1. At the E2 level, China's current national highest standard is E1, and many furniture on the market can meet this standard.
The E0 environmental standard is an international high health standard. According to the data published by the World Health Organization, the formaldehyde content of apple is 17.3mg/l, the formaldehyde content of cabbage is 4.7mg/l, and the E0 standard means formaldehyde content ≤0.5mg/l, that is, the formaldehyde of E0 standard. The content is less than apple and cabbage.
How do you know that it is an E0 grade board:
First, look at the quality inspection report.
Second, from the price discrimination, E0 grade plates are required to be of high quality regardless of the production equipment, production process and quality of the adhesive.
When buying, you should pay attention to:
(1) Although the higher the level, the less the amount of formaldehyde is, but the amount of the product needs to be paid attention to. It cannot be used indefinitely because of environmental protection, because the space of the house is fixed, and the superposition of the quantity will make the environmental protection exceed the standard.
(2) Because the E0 grade sheet itself does not contain adhesives and moisture-proofing agents, its relative moisture resistance and toughness are also reduced, so it is not suitable for use in humid environments such as kitchens and bathrooms.
(3) It is important to know that the amount of formaldehyde released is only one of the important indicators for strengthening furniture. It is not the only standard for products. It should also consider other indicators.
(4) Is it necessary to pursue a more strict "F★★★★"? The walls, ceilings, cabinets and furniture in the decoration may produce formaldehyde, and the clothes in the life also contain formaldehyde. Therefore, simply pursuing one of the environmental protections cannot solve the problem of superposition of formaldehyde in the interior decoration. Although the floor, furniture, and paint separate tests are in line with national standards, it is often prone to excessive formaldehyde accumulation when put together.
"F4 Star" is derived from the laws and regulations of the Ministry of Agriculture and Forestry of Japan. It is actually the "F☆☆☆☆ certification standard" of Japan. It is the highest level of health in Japanese flooring standards and is considered to be the healthiest flooring standard in the world. If you look at the usual E1 and E0 standards, then the "F3 star" is equivalent to the national E0 standard. It is recommended to limit the area of ​​use. The "F4 star" is much higher than the "F3 star", and there is no limit on the area of ​​use.
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