Test methods of ceramic tiles—Part 7: Determination of resistance to surface abrasion for glazed tiles
1 Scope
This part of GB/T 3810 specifies the test method for determining the resistance to surface abrasion of all glazed ceramic tiles used for floor covering.
2 Normative references
The following referenced documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 3810.14-2016 Test methods of ceramic tiles—Part 14: Determination of resistance to stains (ISO 10545-14: 1995, IDT)
ISO 8486-1 Bonded abrasives—Grain size analysis—Designation and determination of grain size distribution—Part 1: Macrogrits F4 to F220
3 Principle
The abrasion resistance of the glaze of tiles is determined by rotation of an abrasive load on the surface and assessment of the wear by means of visual comparison of abraded specimens and non-abraded tiles.
4 Abrasive load
The abrasive load on each specimen shall consist of:
a) 70.0 g of steel balls of diameter 5 mm;
b) 52.5 g of steel balls of diameter 3 mm;
c) 43.75 g of steel balls of diameter 2 mm;
d) 8.75 g of steel balls of diameter 1 mm;
e) 3.0 g of white fused aluminium oxide of grain size F80 according to ISO 8486-1;
f) 20 mL of deionized water or distilled water.
Foreword i
1 Scope
2 Normative references
3 Principle
4 Abrasive load
5 Apparatus
6 Specimens
7 Procedures
8 Classification of results
9 Test report
Annex A (Informative) Calibration of the abrasion apparatus using float glass
