Technical Information & Guidelines


Indian Council of Ceramic Tiles and Sanitaryware

Technical Specification (Minimum Requirements)

S.No. Characteristics Wall Tiles Floor Tiles Vitrified Tiles Industrial Tiles
1 IS       IS 4457:2007
2 ISO 13006 BIII 13006 BIIa 13006 BIa  
3 EN 159 BIII 177 BIIa 176 BIa  
           
A Dimention & Surface Quality        
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%
           
B Physical Properties        
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)     > 0.4  > 0.4 
9 Breaking strength in N  Min 200 Min 600 Min 700 Min 700
10 Density (g/cm)     > 2.00gm/cc > 2.00gm/cc
11 Frost resistance     Required Required
12 Colour change resistance     Required  
           
C Chemical Properties        
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%
           
D Thermal Properties        
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

S.No. Property ISO 13006 / EN-159 Group B III Wall tile value Method of Testing
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

S.No. Property ISO 13006 / EN177  (Group BIIa) Floor tile value Method of Testing
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

No.

Technical Specifications

International Std.  ISO 13006 / EN176 Group BIa Vitrified Tile Method of Testing
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
 
S.No. Test Description  I.S.-4457: 2007  
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    
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    
1 Resistance to Acid (wt. Loss) < 1.5 % < 1.5 %
D Thermal Properties    
1 Thermal expansion <9 x 10-6 <9 x 10-6
2 Thermal shock resistance No damage No damage