Through the price or the introduction of sales, or some way to identify?
The China environmental mark product certification and Accreditation Committee Secretariat approved, Chinese Stone Industry Association of national building materials testing center, Beijing stone industry green enterprise culture development center, set up a product declaration management office of stone industry environmental mark China, "China environmental label product certification" to "five stone" as a symbol of a certificate on the basis of the certification of stone enterprises.Although radioactive stone has some problems, but also no need to talk about the stone discoloration, unworthy of the radioactive stone to exceed the standard series, series of red brown granite, marble and granite or some other colors can be assured that use.
The stone test showed that the radioactivity in natural stone belongs to class B goods for India red, Gui Linhong; which belongs to the C class of goods for Yongding red; radioactive level more than C class standard goods for others such as red azalea, red, cherry red, general red, Taiwan red, Xinjiang red, Shidao red, Anxi red maple leaf, red, red, white, West Tianshan Tianshan red red, Xiamen red, South Africa was a commodity.The China environmental mark product certification and Accreditation Committee Secretariat approved, Chinese Stone Industry Association of national building materials testing center, Beijing stone industry green enterprise culture development center, set up a product declaration management office of stone industry environmental mark China, "China environmental label product certification" to "five stone" as a symbol of a certificate on the basis of the certification of stone enterprises.
To be sure, natural marble is not a natural stoneNatural stone and tiles according to the radioactivity level of ABC is divided into three classes: class a product can be used in any occasions, including office and the family room; class B radioactive products is higher than the class A, can be used for the bedroom interior surface, but can be used for all other indoor and outdoor decorative products; C is higher than A, radioactive B class two, only for the outside walls of buildings; more than C standard control value of natural stone, can only be used for the seawall, piers and stone and other purposes.
