Testing the Quality of Natural Stone
PSMC has an equipped Testing Laboratory which provides quality testing for natural stone according to the American standards (ASTM), European Standards (EU), and the Palestinian Standards.
The following table summarizes these tests and the standard of each test in addition to the specifications of the needed samples for each test:
|
Test Name |
Standard |
Dimensions of samples mm |
# of samples |
|
Water Absorption (%) |
ASTM C97 |
50*50*50 |
5 |
|
Specific Gravity |
ASTM C97 |
50*50*50 |
5 |
|
Compressive Strength, Dry, MPa |
ASTM C170 |
100*100*100 |
5 |
|
Compressive Strength, Wet, MPa |
ASTM C170 |
100*100*100 |
5 |
|
Abrasion Resistance , (Hd) |
ASTM C241 |
50*50*25 |
3 |
|
Mohs Hardness |
|
Any dimension |
|
|
Skid or Slip Resistance |
EN 14231 |
200*200*30 |
6 |
|
Visual Inspection |
--- |
Any dimension > 200*200 |
3 |
|
Flexural Strength, MPa (*) |
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|
Thermal Conductivity (*) |
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|
Freezing Test (*) |
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|
Salt Crystallization (*) |
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|
|
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Note: (*) working in progress – It will be provided to the center before the end of this year.
Testing the Quality of Mortar
- Water Absorption (%)
- Specific Gravity
- Compressive Strength, MPa
- Pull Off Test
- Tensile Strength, MPa
- Abrasion Resistance
- Flexural Strength, MPa