| CHARACTERISTIC |
FLOOR |
METHOD OF TESTING |
| EUROPEAN STANDARDS
EN 1778 11A IS 13755 |
COMET FLOOR TILES
SPECIFICATION |
| A. PHYSICAL DIMENSIONS |
SIZE 400 mm x 400 mm
THICKNESS 8.5mm |
|
| Deviation in length |
±0.5% Max. |
±0.5% Max. |
EN 98M BS 6431 Part 10, is 13630 Part I |
| Deviation in thickness |
±0.5% Max. |
±4.0% Max. |
Same as above |
| Straightness of sides |
±0.5% Max. |
±0.1% Max. |
Same as above |
| Rectangularity |
±0.6% Max. |
±0.25% Max. |
Same as above |
| Surface flatness (Warpage) |
±0.5% Max. |
±0.5% Max. |
Same as above |
| Surface quality |
Minium 95% of tiles free from defects |
Minimum 99% of tiles
free from defects |
Same as above |
| B.
PHYSICAL DIMENSIONS |
|
|
| Water absorption(%)(E) |
3% <E, <6% |
|
N 99, BS 6431 PART 11, IS 13630 PART 2 |
| Bending Strength (N/sq. mm) |
> 22 Average 20 min |
Above 380 Kg./cm3 |
EN 100, BS 6431 PART 12, PART 6 |
| Scratch Strength (mohs) >=3 |
Minium 5 |
Minium 5 |
EN 101, BS 6431 PART 13, IS 13630 PART 13 |
| Resistance to Surface abrasion |
To be sepcified by the Mfr. |
Class III |
EN 154, BS 6431 20 , IS PART 13630 PART 2 |
| Crazing resistance |
Minimum 2 cycles |
Minimum 5 cycles |
IS 13630 PART 9 |
| C. CHEMICAL PROPERTIES |
|
|
| Resistance to staining |
Minimum class 2 |
Minimum class 2 |
EN 122(3,1), is 13630 PART 8 |
| Resistance to household chemicals |
Minimum class B |
Minimum class B |
EN 122 (3,2), IS 13630 PART 8 |
D. THERMAL PROPERTIES |
|
|
| Thermal shock resistance |
Required |
Resistance as per STD |
EN 104, BS 6431 PART 16, 13630 PART 5 |
| Thermal expansion |
Max. 9x 10-6 / K-1 for 100° C |
Max. 9x 10-6 / K-1 for 100° C |
EN 103, BS 6431 PART 15, 13630 PART 4 |
