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General Regulations

 

Current product regulations UNI.EN1441 - ISO 130006

Ceramic tiles are divided into groups according to their production method (extrusion or pressing) and their water absorption values.

  • A. Extruded tiles (glazed and not glazed)
  • B. Pressed tiles (glazed and not glazed)

The groups are broken down further according to their absorption values (porosity):

  • Group B Ia = = E 0,5 UNGL
  • Group B Ib = 0,5 < E = 3 GL
  • Group B IIa = 3 < E = 6 GL
  • Group B IIb = 6 < E = 10 GL
  • Group B III = E > 10 GL

The regulations specify, for each product group, characteristics and deviations.

All tiles of the Opera range are all manufactured by pressing and classified under groups B Ia, B IIa, B III.

Regulations for Testing Methods

These regulations define the methods for the determination of dimensions and surface quality, as well as physical and chemical propreties.

 

UNI EN 14411 Group BIII Set values Average values Regulation 
Dimensions

0,5%

0,3%

UNI EN ISO 10545-2
Crazing resistance

No damage

No damage

UNI EN ISO 10545-11
Chemical resistance

No damage

No damage

UNI EN ISO 10545-13

 

UNI EN 14411 Group BIa Set values Average values Regulation 
Dimensions

0,6%

0,2%

UNI EN ISO 10545-2
Rectangularity

0,5%

0,2%

UNI EN ISO 10545-2
Water absorption

</= 0,5%

0,08%

UNI EN ISO 10545-3
Modulus of rupture and breaking strength

27N/mmq

43,2N/mmq

UNI EN ISO 10545-4
Resistance to surface abrasion

0:5

as indicated

UNI EN ISO 10545-7
Resistance to thermal shock

No damage

No damage

UNI EN ISO 10545-9
Frost resistance

No damage

No damage

UNI EN ISO 10545-12
Chemical resistance

No damage

No damage

UNI EN ISO 10545-13
Slip resistance

>R9

>R9

DIN 51130

 

 

UNI EN 14411 Group BIa Set values Average values Regulation 
Dimensions

0,6%

0,2%

UNI EN ISO 10545-2
Rectangularity

0,5%

0,2%

UNI EN ISO 10545-2
Water absorption

</= 0,5%

0,08%

UNI EN ISO 10545-3
Modulus of rupture and breaking strength

27N/mmq

43,2N/mmq

UNI EN ISO 10545-4
Resistance to surface abrasion

0:5

as indicated

UNI EN ISO 10545-7
Resistance to thermal shock

No damage

No damage

UNI EN ISO 10545-9
Frost resistance

No damage

No damage

UNI EN ISO 10545-12
Chemical resistance

No damage

No damage

UNI EN ISO 10545-13
Slip resistance

>R9

>R9

DIN 51130
UNI EN 14411 gruppo BIa Appendice G BIa GL    


 

UNI EN 14411 Group BIIb Set values Average values Regulation 
Dimensions

0,6%

0,55%

UNI EN ISO 10545-2
Rectangularity

0,5%

0,4%

UNI EN ISO 10545-2
Water absorption

6/10%

7,7%

UNI EN ISO 10545-3
Modulus of rupture and breaking strength

>24N/mmq

>25N/mmq

UNI EN ISO 10545-4
Resistance to surface abrasion

0:5

as indicated

UNI EN ISO 10545-7
Resistance to thermal shock

No damage

No damage

UNI EN ISO 10545-9
Crazing resistance

No damage

No damage

UNI EN ISO 10545-11
Frost resistance

NO resistance

NO resistance

UNI EN ISO 10545-12
Chemical resistance

No damage

No damage

UNI EN ISO 10545-13

 

  set values Average values Regulation
Water absorption

</= 0,5%

0,3%

UNI EN ISO 10545-3