According to China's environmental protection standards , according to the concept of formaldehyde emission limit , the formaldehyde limit level in the floor board is divided into three levels, namely E2≤5.0mg/L, E1≤1.5mg/L, E0≤0.5mg/L.
Xianghe Furniture City official website recommended search reading: floor sheet environmental standard home improvement building materials purchase formaldehyde environmental standards
In China, the plate can reach the E2 standard, that is, the E2, E1 and E0 plates can be called environmentally friendly plates, but due to the improvement of consumers' environmental awareness, E1 or even E0 plates are more common on the market.
The E0 standard is to allow the presence of formaldehyde in the board, but it cannot exceed 0.5 mg/L, which is the upper limit; the lower limit should be the highest content of aldehyde in the wood itself (the wood itself is generally 0.12 mg/L-0.04 mg/L). That is to say, the lower limit is 0.12 mg/L.
"Zero Formaldehyde" means that no aldehyde is selected in the material, no aldehyde is produced during the production reaction; no pollution or damage is caused to the environment to the production personnel.
From this we can define the “zero formaldehyde†board as follows: the free aldehyde in the board is less than or equal to the wood's own aldehyde content (generally 0.04mg/L-0.12mg/L).
“Zero Formaldehyde†sheet and E0 are not the same thing. “Zero Formaldehyde†board is said to be higher than E0 in principle.
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