No

Norms

Unit

For wall tiles

For floor tiles

EN 159

Test method

EN 178

Test method

1

Deviation of size

%

+/-0.5

EN98

TCVN 6415:2005

+/-0.5

EN98

TCVN 6415:2005

2

Rectangularity

%

+/- 0.5

EN98

TCVN 6415:2005

+/-0.5

EN98

TCVN 6415:2005

3

Deviation of flatness

%

+/- 0.5

EN98

TCVN 6415:2005

+/-0.5

EN98

TCVN 6415:2005

4

Water absorption (by mass)

%

10-16

EN99

3-6

EN99

5

Scatch hardness of surface by Mohs scale

Mohs

3-7

EN101

3-7

EN101

6

Modulus of rupture

N/mm2

>=12

EN100

>=22

EN100

7

Co-efficient of linear thermal expansion from ambient temperature to 100^oC

m.K^-1

<=9x10^-6

EN103

<=9x10^-6

EN103

8

Chemical resistance

Group

Resist all acid & base, but flohidric acid

EN122

Resist all acid & base, but flohidric acid

EN122

9

Component of materials

Semi porcelain

Semi porcelain