DIN EN 772-21-2011 砌块产品的试验方法.第21部分粘土和硅酸钙砌块吸水性(冷水吸收)的测定;德文版本EN 772-21-2011
Methods of test for masonry units - Part 21: Determination of water absorption of clay and calcium silicate masonry units by cold water absorption; German version EN 772-21:2011
This European Standard specifies a method of determining the water absorption of clay and calcium sillicate masonry units by immersing them in cold water.