Characteristics Standard As Per IS 15622:2017 Group B IIa OBL Actual Value Test Method Dimensions and Surface Quality: Deviation in Size (Length & Width) ± 0.1 % ± 0.1 % IS 13630 Part 1 Deviation in Thickness ± 5.0 % ± 4.0 % IS 13630 Part 1 Straightness of Sides ± 0.1 % ± 0.1 % IS 13630 Part 1 Rectangularity ± 0.1 % ± 0.1 % IS 13630 Part 1 Surface Flatness ± 0.5 % ± 0.4 % IS 13630 Part 1 Surface Quality Min 95% of the tiles shall be free from visible defects that would impair the appearance of a major area of the tile Conforms IS 13630 Part 1 Physical Properties: Water absorption % Average 3.0 < E ≤6.0%, individual 6.2% Max. 4.5% Max IS 13630 Part 2 Modulus of rupture N/mm² Average 22, individual 20 Min. 40.0 Max IS 13630 Part 6 Breaking Strength N 600 Min for thickness <7.5mm, 1000 Minimum for Thickness ≥7.5 mm Avg 2350 IS 13630 Part 6 Moisture Expansion 0.02 Max 0.02 Max IS 13630 Part 3 Scratch hardness (Moh's Scale) 5 Min 7 - 8 depends upon Design/surface IS 13630 Part 13 Resistance to surface abration of glaze tiles Class I to V (Applicable for floor applications aonly) Class II Min Class IV to V IS 13630 Part 11 Linear thermal expansion Co-efficient Thermal Shock Resistance Crazing Resistance Impact Resistance Coefficient of Friction Frost Resistance Bulk density g/cc 7x10-6 max Conforms IS 13630 Part 4 10 Cycle Min Passed IS 13630 Part 5 4 Cycles at 7.5 Bar, Min Passed IS 13630 Part 9 0.55 , Min >0.55 IS 13630 Part 14 Manufacturer to declare value where required R12 Required if agreed to between manufacturer and purchaser Conforms IS 13630 Part 10 2.0 , Min >2.1 IS 13630 Part 2 Chemical Properties: Resistance to staining of glazed tiles Class 1, Min Class -1 IS 13630 Part 8 Resistance to House hold chemical except (HF and its compounds) Class AA, Min Resistance to acids and alkalis except (HF and its compounds) Class AA, Min Class AA, Min IS 13630 Part 8 IS 13630 Part 8 Class AA, Min Rhino Pavers
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