Technical Information & Guidelines
Indian Council of Ceramic Tiles and Sanitaryware
Technical Specification (Minimum Requirements)
1 |
IS |
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IS 4457:2007 |
2 |
ISO |
13006 BIII |
13006 BIIa |
13006 BIa |
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3 |
EN |
159 BIII |
177 BIIa |
176 BIa |
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A |
Dimention & Surface Quality |
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1 |
Deviation in length |
+ / - 0.5% |
+ / - 0.6% |
+ / - 0.6% |
±0.75% |
2 |
Deviation in thickness |
+ / - 10% |
+ / - 5% |
+ / - 5% |
±5% |
3 |
Straighntness of sides |
+ / - 0.3% |
+ / - 0.5% |
+ / - 0.5% |
±0.5% |
4 |
Rectangularity |
+ / - 0.5% |
+ / - 0.6% |
+ / - 0.6% |
±0.6% |
5 |
Surface flatness (warpage) |
+ / - 0.5% |
+ / - 0.5% |
+ / - 0.5% |
±0.5% |
6 |
Surface quality |
Min.95% free from defects |
Min.95% free from defects |
Min 95% |
Min 95% |
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B |
Physical Properties |
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1 |
Water Absorption |
> 10 % & < 20 % |
> 3 % & ≤ 6 % |
≤ 0.5 % |
< 0.5% |
2 |
Bending Strength/modulus of Rupture (N/sq.mm) |
≥15 |
≥22 |
≥32 |
≥32 |
3 |
Scratch hardness (Mohs) EN 101 |
Minimum 3 |
4 to 6 |
Minimum 6 |
Min 6 |
4 |
Resistance to surface abrasion |
To be specified by mfr. |
To be specified by mfr. |
Deep abrasion Maximum 175 mm3 |
< 175 mm3 |
5 |
Crazing resistance |
Required |
Required |
Required |
Required |
6 |
Moisture expansion |
Required |
Required |
Required |
Required |
8 |
Skid resistance (friction coefficient) |
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> 0.4 |
> 0.4 |
9 |
Breaking strength in N |
Min 200 |
Min 600 |
Min 700 |
Min 700 |
10 |
Density (g/cm) |
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> 2.00gm/cc |
> 2.00gm/cc |
11 |
Frost resistance |
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Required |
Required |
12 |
Colour change resistance |
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Required |
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C |
Chemical Properties |
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1 |
Resistance to staining |
Minimum class 2 |
Minimum class 2 |
Required |
Required |
2 |
Resistance to household chemicals |
Minimum class B |
Minimum class B |
Required |
Required |
3 |
Resistance to acid (wt. loss) |
To be specified by mfr |
To be specified by mfr |
No damage |
<1.5% |
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D |
Thermal Properties |
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1 |
Thermal shock resistance |
Required |
Resistance to 10 cycles |
Required |
Required |
2 |
Thermal expansion |
< 9 x 10 -6 k-1 |
< 9 x 10 -6 k-1 |
< 9 x 10 -6 k-1 |
< 9 x 10 -6 k-1 |
IS - Bureau of Indian Standards, ISO - International Standards, EN - European Standards,
Technical Specifications - Wall Tile
1 |
Deviation in Length & Width |
±0.5% |
±0.3% |
ISO 10545-2 |
2 |
Deviation in thickness |
±5% |
±4% |
ISO 10545-2 |
3 |
Straightness of sides |
±0.3% |
±0.3% |
ISO 10545-2 |
4 |
Rectangularity |
±0.5% |
±0.3% |
ISO 10545-2 |
5 |
Surface flatness |
±0.5% |
±0.3% |
ISO 10545-2 |
6 |
Surface Quality |
Min 95% |
Min 95% |
ISO 10545-2 |
7 |
Water Absorption |
> 10% |
14% - 19% |
ISO 10545-3 |
8 |
Flexural Strength (Average MOR) |
> 15 N/mm2 |
>16N/mm² |
ISO 10545-4 |
9 |
Scratch hardness of surface (Moh's scale) |
Min, 3 |
Min, 3 |
EN 101 |
10 |
Crazing resistance |
1 Cycle |
2 Cycles at 7.5 Bar, Min |
ISO 10545-7 |
11 |
Linear Thermal Expansion |
9 x 10-6 K-1, Max |
9 x 10-6 K-1, Max |
ISO 10545-8 |
12 |
Thermal shock Resistance |
No damage |
No damage |
ISO 10545-9 |
13 |
Resistance to household Chemicals |
Resistance |
Resistance |
ISO 10545-13 |
14 |
Resistance to Staining |
Resistance |
Resistance |
ISO 10545-14 |
Technical Specifications - Floor Tile
1 |
Deviation in Length & Width |
±0.6% |
±0.5% |
ISO 10545-2 |
2 |
Deviation in thickness |
±5% |
±4% |
ISO 10545-2 |
3 |
Straightness of sides |
±0.5% |
±0.4% |
ISO 10545-2 |
4 |
Rectangularity |
±0.6% |
±0.2% |
ISO 10545-2 |
5 |
Surface flatness |
±0.5% |
±0.3% |
ISO 10545-2 |
6 |
Surface Quality |
Min 95% |
Min 95% |
ISO 10545-2 |
7 |
Water Absorption |
3% - 6% |
3% - 6% |
ISO 10545-3 |
8 |
Flexural Strength (Average MOR) |
> 22 N/mm2 |
> 22 N/mm2 |
ISO 10545-4 |
9 |
Scratch hardness of surface (Moh's scale) |
> 3 |
4 to 6 |
EN 101 |
10 |
Resistance to Surface Abrasion (PEI) |
I - V |
PEI II –V |
ISO 10545-7 |
11 |
Crazing resistance |
2 Cycles |
2 Cycles |
ISO 10545-11 |
12 |
Linear Thermal Expansion |
<9 x 10-6 K-1 |
<9 x 10-6 K-1 |
ISO 10545-8 |
13 |
Thermal shock Resistance |
No damage |
No damage |
ISO 10545-9 |
14 |
Resistance to household Chemicals |
Resistance |
Resistance |
ISO 10545-13 |
15 |
Resistance to Staining |
Resistance |
Resistance |
ISO 10545-14 |
Technical Specifications - Vitrified Tile
1 |
Deviation in Length & Width |
±0.6% |
±0.1% |
ISO 10545-2 |
2 |
Deviation in thickness |
±5% |
±4% |
ISO 10545-2 |
3 |
Straightness of sides |
±0.5% |
±0.1% |
ISO 10545-2 |
4 |
Rectangularity |
±0.6% |
±0.2% |
ISO 10545-2 |
5 |
Surface flatness |
±0.5% |
±0.2% |
ISO 10545-2 |
6 |
Surface Quality |
Min 95% |
Min 95% |
ISO 10545-2 |
7 |
Water Absorption |
< 0.5% |
< 0.05% |
ISO 10545-3 |
8 |
Scratch hardness of surface (Moh's scale) |
≥6 |
≥6 |
EN 101 |
9 |
Flexural Strength (Average MOR) |
>35N/mm² |
>38N/mm² |
ISO 10545-4 |
10 |
Breaking Strength |
>1300N |
>1500N |
ISO 10545-4 |
11 |
Resistance to deep Abrasion |
<175mm3 |
<144mm3 |
ISO 10545-6 |
12 |
Skid Resistance (Friction coefficient) |
>0.4 |
>0.4 |
ISO 10545-17 |
13 |
Bulk Density, in (g/cc) |
>2 |
>2 |
DIN 51082 |
14 |
Linear Thermal Expansion |
<9 x 10-6 K-1 |
<9 x 10-6 K-1 |
ISO 10545-8 |
15 |
Thermal shock Resistance |
No damage |
No damage |
ISO 10545-9 |
16 |
Frost resistance |
Frost proof |
Frost proof |
ISO 10545-12 |
17 |
Resistance to Chemicals |
Resistant |
Resistant |
ISO 10545-13 |
18 |
Colour resistance to UV light |
Resistant |
Resistant |
DIN 51094 |
19 |
Moisture expansion |
Nil |
Nil |
ISO 10545-10 |
A |
Dimension |
|
Industrial tile |
1 |
Length & Width |
±0.75% |
±0.6% |
2 |
Thickness |
±5% |
±5% |
3 |
Straightness of sides |
±0.5% |
±0.5% |
4 |
Rectangularity |
±0.6% |
±0.6% |
5 |
Surface flatness |
±0.5% |
±0.3% |
B |
Physical Properties |
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1 |
Water absorption |
< 0.5 % |
< 0.5 % |
2 |
Mohs Hardness |
- |
>7 |
3 |
Flexural strength (MOR) |
>35 N/mm² |
>35 N/mm² |
4 |
Breaking Strength |
≥1300N |
>1500 N |
5 |
Abrasion resistance/Deep abrasion |
<175mm3 |
<140mm3 |
6 |
Skid Resistance |
>0.4 |
>0.6 |
7 |
Density (gm/cc) |
>2 |
>2 |
8 |
Moisture expansion |
Nil |
Nil |
C |
Chemical Properties |
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1 |
Resistance to Acid (wt. Loss) |
< 1.5 % |
< 1.5 % |
D |
Thermal Properties |
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1 |
Thermal expansion |
<9 x 10-6 |
<9 x 10-6 |
2 |
Thermal shock resistance |
No damage |
No damage |