Ten ring, commonly known as China Environmental Label, is not unique to China. Many countries and regions in the world are implementing environmental label programs. Wall paint basically belongs to the standard of water-based paint in ten ring, so many wall paint enterprises have applied for and passed the Class I certification of environmental label in China, which is the former ten ring; In addition, some enterprises are superior to other enterprises in the same industry in the process and characteristics of wall coatings, such as the content of heavy metals and organic volatiles, which are superior to national standards, industry standards and even other products certified by ten ring. Therefore, these enterprises apply for Class II certification of environmental labels in China, mainly in the form of self-declaration of environmental protection to reflect some unique characteristics. This is the second ten ring. This is the first explanation.
The second explanation is that the products of enterprises have obtained Class I environmental label certification in China and Class I environmental label certification in other countries abroad, which is also a popular saying of "double ten ring".