DIN EN 14579 E : 2005
Current
The latest, up-to-date edition.
NATURAL STONE TEST METHODS - DETERMINATION OF SOUND SPEED PROPAGATION
Hardcopy , PDF
English
01-01-2005
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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