I.S. EN 14579:2004
Current
The latest, up-to-date edition.
NATURAL STONE TEST METHODS - DETERMINATION OF SOUND SPEED PROPAGATION
Hardcopy , PDF
English
01-01-2004
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
Foreword
1 Scope
2 Principle
3 Symbols and abbreviations
4 Apparatus
4.1 General
4.2 Performance requirements
4.3 Transducers
4.4 Apparatus for the determination of the arrival time
of the pulse
4.5 Other apparatus
5 Preparation of the specimens
5.1 Sampling
5.2 Test specimens
5.2.1 General
5.2.2 Dimensions
5.2.3 The test specimens shall be prisms of
300 mm x 75 mm x 50 mm with a tolerance of
+/- 2 mm. Planes of anisotropy
5.2.4 Drying the specimens
6 Test procedure
6.1 General
6.2 Determination of Pulse Velocity
6.2.1 Factors influencing pulse velocity measurements
6.2.2 Transducer arrangement
6.2.3 Path length measurement
6.2.4 Coupling the transducer onto the stone
6.2.5 Measurement of the transit time
7 Expression of the results
8 Test report
Annex A (normative) Determination of pulse velocity in
the case of indirect transmission
Annex B (informative) Factors influencing the measurement
of the velocity of sound
B.1 General Points
B.2 Water Content
B.3 Path Length
B.4 Shape and sizes of the test specimens
B.5 Fissures and voids
Bibliography
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