Methods of test for masonry units - Part 5: Determination of the active soluble salts content of clay masonry units; German version EN 772-5:2016+AC:2017— 16 стр.
Methods of test for masonry units - Part 5: Determination of the active soluble salts content of clay masonry units; German version EN 772-5:2016— 13 стр.
Methods of test for masonry units - Part 5: Determination of the active soluble salts content of clay masonry units; German version EN 772-5:2016— 13 стр.