DIN EN 772-13:2000-09 Methods of test for masonry units - Part 13: Determination of net and gross dry density of masonry units (except for natural stone); German version EN 772-13:2000
2000DIN EN 772-13:2000-09 Methods of test for masonry units - Part 13: Determination of net and gross dry density of masonry units (except for natural stone); German version EN 772-13:2000
2000DIN EN 772-13:2000 Methods of test for masonry units - Part 13: Determination of net and gross dry density of masonry units (except for natural stone); German version EN 772-13:2000