MR E0 E1 E2 F4 CARB NAUF Formaldehyde Emission Plywood

MR E0 E1 E2 F4 CARB NAUF Formaldehyde Emission Plywood

E0, E1, E2 all refer to an environmental protection standard for formaldehyde emission limit. The first two standards E1 and E2 were produced in Germany, which was formulated by “EGGER” and then introduced as European standard. The highest standard in Europe is E1. E2. E0 is the most demanding environmental standard, equivalent to E1 and E2 in Europe. It is based on the content of harmful substances such as formaldehyde in the board.
E0 is just a formaldehyde release, not an environmental rating.

The difference between E1 and non-E1 is that the environmental protection level is different.
The board is divided into four grades according to the processing technology and environmental protection degree: E0, E1, E2, E3, and the environmental protection grade standard of solid wood is common.
Among them, E0, E1 and E2 boards are allowed to be used as furniture substrates.
E2 grade formaldehyde content 10-30 mg / 100 g which is in line with domestic environmental standards,
E1 grade formaldehyde content of 1.5 mg / 100 g is in line with European environmental standards.
E0 grade formaldehyde content of less than or equal to 0.5 mg / 100 g is the world’s top environmental standards.

In the world, the formaldehyde limit level is divided into three levels of E2, E1 and E0 (E2≤5.0mg/L, E1≤1.5mg/L, E0≤0.5mg/L).

“Environmental Standards for Formaldehyde Release from Sheets: E0, E1, E2 and Related Explanations”

At present, consumers are often exposed to E0 and E1 in the market. So what are E0 and E1, and what are the levels? How are these levels determined?

(The units appearing below, g = gram, mg = milligram, ug = microgram; 1 gram = 1000 mg = 1,000,000 micrograms)

First look at what is the E0 level. In China, “E0” is one of the standards for the release level of formaldehyde. Since 1997 and 1998, there have been such claims, and the standards are not the same. According to researcher Cao Zhongrong of the Institute of Wood Research of the Chinese Academy of Forestry, one of the drafters of the national standard for plywood in China, the E0 grade written in the national standard is officially published in the national standard GB/T9846.1-9846.8-2004 issued in 2004. The main indication is the limit of formaldehyde release. It is understood that this standard is mainly based on Japan’s mature environmental standards. The Japanese standard is divided into four levels. The most stringent F**** is not used in the measurement of formaldehyde emission in China’s plywood. Only the F*, F**, and F*** in the Japanese standard are adopted. E0, E1, E2. That is, E2 ≤ 5.0 mg / L, E1 ≤ 1.5 mg / L, E0 ≤ 0.5 mg / L In fact, “E0” is already a general mark representing the level of formaldehyde emission.

Table 1: Formaldehyde release limit for blockboard units in milligrams per liter

Level mark limit
E0 ≤0.5mg/L can be used directly indoors
E1 ≤1.5mg/L can be used directly indoors
E2 ≤5.0mg/L can be used indoors after being treated to the E1 level

Table 2: Formaldehyde release limit of plywood in milligrams per liter

Level mark limit
E0 ≤0.5mg/L can be used directly indoors
E1 ≤1.5mg/L can be used directly indoors
E2 ≤5.0mg/L can be used indoors after finishing treatment

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