This standard applies to glazed or unglazed ceramic products for daily use with water absorption greater than 5%.
GB/T 4738.1-1984 history
2015GB/T 4738-2015 Test method for acid, alkaline resistance for ceramic materials of daily use
1984GB/T 4738.1-1984 Standard test method for acid,alkaline resistance for ceramic materials of daily use (lump test method)
GB/T 4738.1-1984 Standard test method for acid,alkaline resistance for ceramic materials of daily use (lump test method) was changed to GB/T 4738-2015 Test method for acid, alkaline resistance for ceramic materials of daily use.