Excessive formaldehyde has always been a headache in home improvement. At present, there are many standards for the release of formaldehyde in wood products. Various sayings are flooding the market. For example, many wardrobe businesses promote their products using "E0 grade plates" or "super E0 grade plates". . So how is the E0 level defined?
Environmental standards for formaldehyde release limit
There are three levels in the market regarding the environmental standards for formaldehyde emission limit levels: E0, E1, and E2. In fact, the E-class is a long-standing saying that defines the formaldehyde content of the plate internationally, and the standard system is quite perfect.
It is understood that the European version of the E1 and E2 standards was first established by EGGER, ie EGGER (Ege Group started in 1961, leading in the field of sheet metal manufacturing, EGGER is the world's first to obtain ISO9001/EN29001 quality certification The certificate sheet manufacturer, which is also one of the world's largest sheet metal manufacturers, has been developed and gradually absorbed as a European standard.
Specific requirements are as follows:
Corresponding domestic E1 and E2 standards were first seen in the "release limit of formaldehyde in wood-based decorative materials and their products" issued in 2001, GB18580-2001, marking the national standard E2 ≤ 5.0mg / L, national standard E1 ≤ 1.5 The two standard levels of mg/L stipulate that the national standard E1 product can be directly used indoors, and the national standard E2 product must be treated after finishing to be used indoors.
How is the real E0 level defined?
How is the E0 standard generated? Some people say that the E0 standard adopted from Japan on July 1, 2003, that is, the formaldehyde and harmful substances released by the product E0 (JPN) ≤ 0.0 mg / L. Less than or equal to 0? Since formaldehyde is naturally present in wood, there is no "zero formaldehyde" wood. For example, an oak tree emits 0.009 million parts of formaldehyde.
The Japanese general standard is a star rating system based on the Japanese Agricultural Standard (JAS):
The formaldehyde emission regulations for this wood-based structural panel are recognized as the most stringent in the world.
So where does the E0 standard come from? According to relevant experts, in China, "E0" is one of the standards for the release level of formaldehyde. Since 1997 and 1998, there have been such sayings, and the standards are not the same, mainly for enterprises developed by some manufacturers to improve the quality of products. Internal standards, most of them will be formaldehyde emission limit ≤ 0.5mg / L custom-defined as E0 level.
Obviously, the emergence of the original E0 standard is the result of market speculation.
The E0 level that really began to be written into the national standard was officially appeared in the "Plywood" national standard GB/T9846.1-9846.8-2004 promulgated in 2004, mainly indicating the limit of formaldehyde release. It is understood that this standard is mainly based on Japan's mature environmental standards.
E0 only has the national standard E0, but Europe, America and Japan do not have the E0 standard.
The national standard GB/T9846.1-9846.8-2004 issued in 2004 has been replaced by the national standard GB/T9846-2015, which was implemented on November 2, 2015, which is to cancel the E0 standard. There are only two standards, E1 and E2.
EO standard, many times Zhang Guan Li Dai
At present, some brands on the market have proposed the concept of E0 for the promotion of products. In fact, only the floor products of the E0 national testing standards have this clear national standard, which has appeared in the plywood standard and has been cancelled. In actual market sales, because the “E0†logo is easily confused with the “E1†and “E2†standards, it is often used by some merchants to mislead consumers.
With the increasingly fierce competition in the furniture industry, many merchants regard E0 as a “gimmick†for publicity in order to more share the “cake†of the market.
In fact, the best plate grade used in most panel furniture is the European E1 grade. When you buy it, you can show the certificate to the seller. Some European manufacturers claim that the product reaches the E0 level, which is actually a level set by the manufacturer itself, and is not a formal agency certification.
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