NEN-EN 772-21
Test methods for masonray units - Part 21: Determination of open and total porosity for natural stone masonry units
inactive
| Organization: | NEN |
| Publication Date: | 1 September 1993 |
| Status: | inactive |
| Page Count: | 10 |
| ICS Code (Mineral materials and products): | 91.100.15 |
| ICS Code (Mining and quarrying): | 73.020 |
scope:
Specifies a method of determining the real density and the bulk density and the open and total porosity of natural stone masonry units.
Document History
May 1, 2011
Methods of test for masonry units - Part 21: Determination of water absorption of clay and calcium silicate masonry units by cold water absorption
This European Standard specifies a method of determining the water absorption of clay and calcium silicate masonry units by immersing them in cold water.
NEN-EN 772-21
September 1, 1993
Test methods for masonray units - Part 21: Determination of open and total porosity for natural stone masonry units
Specifies a method of determining the real density and the bulk density and the open and total porosity of natural stone masonry units.