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1. |
Deviation in thickness |
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+ 5.0 % |
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+ 3.0 % |
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2. |
Deviation in Length |
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+ 0.6 % |
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+ 0.1 % |
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3. |
Straightness of sides |
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+ 0.5% |
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+ 0.1 % |
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4. |
Rectangularity |
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+ 0.6% |
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+ 0.2 % |
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5. |
Surface Flatness (Warpage) |
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+ 0.5 % |
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+ 0.2 % |
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6. |
Water Absorption |
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< 3.0 % |
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< 3 % |
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7. |
Moh's Hardness |
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> 5 |
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> 5 |
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8. |
Flexural Strength |
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>35 N/mm2 |
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>39 N/mm2 |
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9. |
Abrasion Resistance |
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As specified by Manu. |
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10. |
Density (g/cc) |
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> 2 |
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> 2.2 |
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11. |
Frost Resistance |
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Frost Proof |
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Frost Proof |
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12. |
Chemical Resistance |
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No Damage |
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No Damage |
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13. |
Thermal Shock Resistance |
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No Damage |
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No Damage |
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14. |
Color Resistance |
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No Damage |
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No Damage |
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15. |
Thermal expansion |
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< 9 X 10-6 |
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< 6 x 10-6 |
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16. |
Satin Resistance |
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Resistance |
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Stain Proof |
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17. |
Moisture Expansion |
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Nil |
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Nil |
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