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The younger generation has a stronger awareness and recognition of environmental protection, and pays more attention to creating a healthy environment in their home life.
Formaldehyde standards for building materials are often indicated by terms like E1, European Standard, CARB, E0, ENF, and F-star certification when buying interior building materials. However, if you are unfamiliar with these environmental standards, you'll be confused when choosing materials, and you won't know whether your living space will be healthy enough, or whether the furniture made of these materials that you use every day will give you peace of mind.
Currently, the common formaldehyde emission standards in my country are E1, E0, and ENF, but these three standards have different applicable scopes.
On October 1, 2021, new environmental regulations in my country came into effect, classifying formaldehyde emission standards into three levels: E1, E0, and Enf, with the standards increasing progressively. The E1 level (≤0.124 mg/m³) is the national standard for formaldehyde emission from engineered wood products and also represents the entry-level requirement for interior decoration. Theoretically, if the formaldehyde emission of engineered wood products exceeds 0.124 mg/m³, they are not permitted for use in interior decoration. In other words, for engineered wood products to be placed in a customer's home, they must meet this standard.
my country's previous formaldehyde standards were introduced from Europe. The European standard is basically E1 grade. The standard values of European E1 and Chinese E1 are exactly the same. So you can use European E1 as Chinese E1. It is also a threshold-level product.
E0 grade formaldehyde emission standard is 0.050mg/m³, which is the most common product on the market. Because it is relatively inexpensive, it has a large sales volume. It is perfectly safe to use E0 grade if there are no children in the house! ENF grade means that no formaldehyde is added in the production process. Its formaldehyde emission standard is 0.025mg/m³, which is very authoritative and far exceeds E0 grade. It is applicable to the formaldehyde emission classification of various types of artificial boards and their products for indoor use. When buying particleboard, plywood, blockboard, veneered artificial boards, wood flooring, wood wall panels, wood doors and other types of boards, you can refer to the ENF environmental protection standard.
The CARB standard is a US certification standard that also imposes certain requirements on the manufacturing process. It is divided into P1, P2, and the highest level, NAF. P1 is equivalent to E1, P2 is close to E0, and the highest level, NAF, is called formaldehyde-free exemption certification. For example, the NAF level requires that no formaldehyde-containing substances be added at any stage of the board production process. However, if the unit is standardized to ppm (parts per million of formaldehyde in the air), it is still lower than my country's Enf level.
The F-star rating system is Japan's standard system for free formaldehyde, with four star ratings. The standards gradually become stricter from one star to four stars. The highest international environmental certification standard is "F4 star", which not only has requirements for formaldehyde but also conducts environmental certification for the entire factory production system, including all aspects of raw materials, production processes, and finished products.
In terms of free formaldehyde levels, F4 Star represents the highest international standard, with an average formaldehyde emission limit of no more than 0.3 mg/L and no restrictions on the area in which it is used.
Waterborne Science & Technology, relying on its core technology of waterborne polymers, has independently developed a patented third-generation waterborne polyurethane formaldehyde-free adhesive technology (patent number: ZL 2015 1 0392125.8). This technology replaces organic solvents with water and has been successfully applied to the production of plywood, blockboard, eco-board, wood flooring, particleboard, and KT high-polymer eco-board. The performance meets the quality standards for formaldehyde-free boards and flooring. These boards possess advantages such as high strength, high water resistance, high flatness, no added formaldehyde, no odor, and no deformation, fully complying with formaldehyde-free board standards. Their environmental protection level far exceeds national standards, meeting the new national ENF standard, European E0, Japanese F4 star, and US CARB formaldehyde limit requirements, and meeting export standards for boards. This technology enables the non-toxic and industrialized production of waterborne coatings, formaldehyde-free boards, and non-toxic custom furniture, providing consumers with a ready-to-move-in, non-toxic home decoration experience.