2010GB 6566-2010 Limits of radionuclides in building materials
2001GB 6566-2001 Limit of radionuclides in building materials
2000GB 6763-2000 Requirements for the control of radioactive substances in building material products and industrial waste residues used in building materials (?)
1986GB 6763-1986 Standard of limit on radioactive substance for industrial waste slags used in building materials