| Decription
of the test |
Test
Method |
Standard |
Rocell |
| Values |
Values |
| Length and Width |
ISO 10545.2 |
0.60% |
0.40% |
| Rectangulatity |
ISO 10545.2 |
0.60% |
0.40% |
| Thickness |
ISO 10545.2 |
5% |
3% |
| Straightness of Sides |
ISO 10545.2 |
0.50% |
0.40% |
| Surface Flatness |
|
|
|
i. Centre
Curvature related to the
diagonal calculated
work size
|
ISO 10545.2 |
0.50% |
0.40% |
ii Edge
Curvature related to the
corresponding
work size
|
ISO 10545.2 |
0.50% |
0.40% |
iii Warpage related to
the diagonal
calculated from work
size
|
ISO 10545.2 |
0.50% |
0.40% |
| Surface Quality |
ISO 10545.2 |
Min.95%
of tiles shall be free from visible defects that would
impair the apprearence of a mojor area of tiles. |
| Water Absorption by Mass |
ISO 10545.3 |
0.5% (Minimum) |
0.1% (Maximum) |
| Modulus of Rupture |
ISO 10545.4 |
27 N/mm²
(276 kg/cm²)
|
42 N/mm²
(428 kg/cm²) |
Moh's Scale Hardness
|
|
6 (Minimum) |
6 (Minimum) |
| Deep Abrasive Resistance
(Minimun) |
ISO 10545.6 |
205mm |
163mm |
| Surface Abrasion Resistance |
|
|
|
| Homogeneoud
Tiles (Unglazed) |
ISO 10545.7 |
PEI IV |
Min Class
IV |
| Glazed
Tiles |
ISO 10545.7 |
PEI III |
Min Class
III |
| Thermal Expansion |
ISO 10545.8 |
Max.
9x10-6C-1 |
6.5 X 10-6C-1 |
| Resistance to Thermal
Shock |
ISO 10545.9 |
Resistant |
Resistant |
| Resistance to Stains |
ISO 10545.14 |
Min.Class
III |
Class I |
| Colour Resistance to light |
BS-6431
(Part 6) |
Resistant |
Resistant |
| Frost Resistance |
ISO 10545.12 |
Resistant |
Resistant |
| Determination of Chemical
Resistance |
ISO 10545.13 |
Resistant |
Resistant |
