STANDARD: EN 101
Used for determining the hardness of the surface of the materials.
Composed by a case containing 9 minerals of the Moh’s hardness
scale, copper strip, small glass and magnet bar.
Weight: 500 g
INDEX OF VELOCITY OF ROCKS:
Ultrasonic pulse velocity tester.
See section “C” concrete
mod. C369N…C372N
p. 371…372
