Scratch hardness (Mohs) Resistance to abrasion UGL Coefficient of linear thermal expansion Resistance to thermal shock Crazing resistance Chemical resistance UGL Chemical resistance GL Resistnce to abrasion GL PELk Resistance to abrasion GL MCCk Frost resistancek Moisture expansion a
Inspection by average value if required Initial Sample Initial +Second samples Second sample Rejection Acceptable Acceptable to be drawn justified if if if if X1 >Le X1 L X2 U X2 U X1 >Le X1 L X2
Test method EN 98
EN 98
EN99 EN100
0
2
1
2
-
-
-
-
EN101
0
h
h
h
-
-
-
-
EN102
2
1
2
i
1
i
2
i
1
1
0
2
-
-
-
-
EN103
5
5
0
2
1
2
-
-
-
-
EN101
5
5
0
2
1
2
-
-
-
-
EN101
5
5
0
2
1
2
-
-
-
-
EN101
5
5
0
2
1
2
-
-
-
-
EN122
11
-
7
-
10 7
7
When classified according to the PEL or MCC method , the abrasion class shall be equal to or better than the abrasion class specified by the manufacturer 0 0
1 2
2
1
2
-
-
-
-
EN154 EN202 EN155
Only for tiles with individual facial areas ≥ 4 cm At least 1 m2 with a minimum of 30 tiles. Whatever the number of tiles 1 m2 , the test sample should be the nearest 10 tiles above. Conformity to AQL 2.5 ٪ in accordance with ISO 2859 or 3951 is acceptable alternative to the procedures in Table 1. c The sample size depends on the size of the tiles . d Only for tiles with individual facial areas > 0.04 m2 . In the case of tiles weighing <50 g a sufficient number shall be taken so as to form 5 test specimens each weighing between 50 and 100 g . e L = Lower specification limit . f U = upper specification limit . g Only for tiles with lengths ≥ 48 mm h Number of measurements . I Number of test specimens . j Per test solution . k There is no double sampling test procedure for these properties . b
