Technical Standards

European Standards

European Standards (EN) for hardened stone

ČSN EN 14617-1	(Artificial stone - Test methods - Part 1: Determination of bulk density and water absorption)
ČSN EN 14617-2	(Artificial stone - Test methods - Part 2: Determination of flexural strength)
ČSN EN 14617-4	(Artificial stone - Test methods - Part 4: Determination of abrasion resistance)
ČSN EN 14617-5	(Artificial stone - Test methods - Part 5: Determination of frost resistance)
ČSN EN 14617-6	(Artificial stone - Test methods - Part 6: Determination of resistance to thermal shock)
ČSN EN 14617-09	(Artificial stone - Test methods - Part 9: Determination of impact resistance)
ČSN EN 14617-10	(Artificial stone - Test methods - Part 10: Determination of chemical resistance)
ČSN EN 14617-11	(Artificial stone - Test methods - Part 11: Determination of the coefficient of linear thermal expansion)
ČSN EN 13501-1	(Flammability)
ČSN 725191 a P CEN/TS 16165	(Anti-slip)

Average achieved values of basic physical and mechanical properties according to European h standards

PRODUCTON GROUP	BULK DENSITY *(g / cm³)*		WATER ABSORPTION AFTER 48 HOURS *(% hm.)*		FLEXURAL TENSILE STRENGHT *(MPa)*
PRODUCTON GROUP	Range of Values	Average Value	Range of Values	Average Value	Range of Values	Average Value
Sand	2,35 - 2,44	2,39	0,01 - 0,05	0,03	47 - 71	57
Granite	2,40 - 2,58	2,48	0,01 - 0,07	0,04	31 - 50	42
Mirrors	2,31 -2,45	2,38	0,01 - 0,05	0,02	36 - 68	49
Crystal (Noble)	2,20 - 2,37	2,32	0,01 - 0,05	0,03	63 - 93	80
Crystal (grains < 2,5 mm)	2,20 - 2,44	2,38	0,01 - 0,05	0,03	50 - 97	75
Crystal (grains ≥ 2,5 mm)	2,39 - 2,47	2,43	0,01 -0,04	0,02	31 - 54	46
Implementing standard	EN 14617-1		EN 14617-1		EN 14617-2
Determined	Technistone laboratory

PRODUCTION GROUP	THERMAL EXPANSION COEFFICIENT(30 TO 60 °C)		THERMAL EXPANSION COEFFICIENT (20 TO 130 °C)		FROST RESISTANCE COEFFICIENT (AVERAGE)		ABRASION RESISTANCE (AVERAGE)
PRODUCTION GROUP	( 10^-6 /°C )		( 10^-6 /°C )		-		(mm³)
Sand	21,8		30,0		90 - 110		6840
Granite	13,4		17,3		90 - 110		8125
Mirrors	17,5		22,7		90 - 110		7900
Crystal	17,5-34,6		22,7-40,2		90 - 110		6700
Implementing standard	EN 14617-11		EN 14617-11		EN 14617-5		EN 4157 (B)
Determined	TZÚS Plzeň				Stone and Gravel Test Laboratory, Hořice

American standards

American standards (ASTM; not directly for engineered stone)

ASTM C97	(absorbency, bulk density)
ASTM C99	(flexural strength, three-point bending)
ASTM C880	(flexural strength, four-point bending)
ASTM C1028	(anti-slip)
ASTM C650	(chemical resistance)
ASTM C1378	(resistance against stains)
ASTM C484	(thermal shock)
ASTM C648	(fracture force)
ASTM C241	(abrasion)
ASTM E84	(flammability)
ASTM E228	(coefficient of thermal expansion)

Institution:

Tile Council of North America USA (TCNA)
Applied Materials & Engineering USA (AME)
TEC Services USA
Commercial Testing Company USA
Orton USA

Average achieved values of basic physical and mechanical properties according to American standards

Standard	Propertz	Unit	Values
ASTM C97	Absorbency	%	0,01 - 0,06
ASTM C97	Bulk density	lb/ft³	138,6 - 151,3
ASTM C99	Flexural strength in bending	psi	5 699 - 9 776 (dry) 6 904 - 12 547 (wet)
ASTM C880	Flexural tensile strength in bending	psi	5 761 - 10 063 (dry) 5 864 - 11 464 (wet)
ASTM C1378	Resistance	-	Unchanged (Class A)
ASTM C650	Chemical resistance	-	Uncahnged (Classs C)
ASTM C484	Thermal shock	-	mechanical properties unchanged
ASTM C648	Fracture strength	lbf	937–1625
ASTM C1028	Anti-slip	-	0,79 - 1,05 (dry) 0,57-0,71 (wet)
ASTM E84-10	Flammability	-	Class A
ASTM C241-09	Resistance	-	79,11 - 110,5
ASTM E228	Coefficient of thermal expansion (30–60 °C)		18,2 - 30,9