DIN EN 772-3:1998 Methods of test for masonry units - Part 3: Determination of net volume and percentage of voids of clay masonry units by hydrostatic weighing; German version EN 772-3:1998
The document specifies a method of determining the net volume and percentage of voids in clay masonry units (including frogs and cells).
DIN EN 772-3:1998 history
1998DIN EN 772-3:1998-10 Methods of test for masonry units - Part 3: Determination of net volume and percentage of voids of clay masonry units by hydrostatic weighing; German version EN 772-3:1998
1998DIN EN 772-3:1998 Methods of test for masonry units - Part 3: Determination of net volume and percentage of voids of clay masonry units by hydrostatic weighing; German version EN 772-3:1998