For years because some ACTS of unfair competition and public opinion misleading, socially widespread rumours that the marble to human body radioactive harm, in architectural decoration use marble can make the person carcinogenic parlance, misled consumers.Serious impact on the marble products in architectural decoration application, this statement not based on any scientific evidence.Therefore, notices are as follows:
Marble belong to sedimentary rocks, and mainly by carbonate mineral composition, from marble formation geological process analysis, the formation of natural marble and radioactive substances are not directly related to human body, thus not radioactive hazards.According to GB6566-2001 building material radionuclide set limit to "national standards implementation for nine years of stone material of actual measurement data, natural marble of radionuclide radium - 226 - and thorium 232, potassium - 40 of radioactive than activity far below standard of A class (green, is not restricted) index, and can completely neglected.GB6566-2001GB6566-2001 building material radionuclide set limit to "mandatory national standards from the date of publication and implementation, marble never included compulsory inspection building material list,
No harm to human body marble radioactive without panic
The stone product standards in China T202-2001 JC/waste material of natural marble "industry standards and GB/T19766-2005" natural marble building plank "national standards technical requirements, no detection radionuclide than activity requirements;。Long-term since many consumers of stone material classification, at the same time, because of lack of understanding of marble radioactive misunderstanding, marble has been listed in the customs shall check project, for our country the marble of normal trade brings negative effect.2008 on December 24, the state administration of quality supervision, inspection and quarantine issued about adjusting entry-exit inspection and quarantine institutions to implement inspection and quarantine of entry or exit commodity list (2009) "the announcement and decided from January 2009, 1 marble and its products (including limestone, sandstone natural stone products) accesses the catalogue of the law, no longer implementation by entry-exit inspection and quarantine supervision, namely the marble undertake no longer radioactive compulsory inspection.