Specification

(*) Whichever is less
(1) May not apply to textured surfaces or tiles with uneven back patterns.
(2) Whichever is less, for tiles up to 24’’x24’’ (610 mm x 610 mm).
(3) Applies to tiles larger than 24’’x24’’ (610 mm x 610 mm).
Porcelain Tile Specification
PROPERTY
ASTM TEST
METHOD
Calibrated Rectified
SELVA
Minimum Maximum Minimum Maximum
REGULARITY
CHARACTERISTICS
Nominal Size
ASTM C499
-3.00% 3.00% -3.00% 2.00% Compliant
Caliber Range (Variation from
average facial dimension of sample)
-0.50% or -0.08 in
(-2.0 mm) (*)
0.50% or 0.08 in
(2.0 mm) (*)
-0.25% or -0.03 in
(-0.8 mm) (*)
0.25% or 0.03 in
(0.8 mm) (*)
Compliant
Thickness
(1)
N/A Range: 0.40 in (1.02 mm) N/A Range: 0.40 in (1.02 mm) Compliant
Wedging ASTM C502
-0.50% or -0.08 in
(-2.0 mm) (*)
0.50% or 0.08 in
(2.0 mm) (*)
-0.25% or -0.03 in (-0.8
mm) (*)
0.25% or 0.03 in
(0.8 mm) (*)
Compliant
Warpage Edge
ASTM C485
-0.75% or -0.09 in
(-2.3 mm) (*)
0.75% or 0.09 in
(2.3 mm) (*)
-0.40% or -0.05 in
(-1.3 mm)
(2)
or -1.8 mm
(3
) (*)
0.40% or 0.05 in
(1.3 mm)
(2)
or 1.8 mm
(3)
(*)
Compliant
Warpage Diagonal
-0.50% or -0.08 in
(-2.0 mm) (*)
0.50% or 0.08 in
(2.0 mm) (*)
-0.40% or -0.07 in
(-1.8 mm) (*)
0.40% or 0.07 in
(1.8 mm) (*)
Compliant
All Porcelain Tiles
STRUCTURAL
CHARACTERISTICS
Water Absorption ASTM C373 ≤ 0.5% ≤ 0.5%
BULK MECHANICAL
CHARACTERISTICS
Breaking Strength ASTM C648
Average ≥ 250 lbf. (1.11 kN)
Individual ≥ 225 lbf. (1.00 kN)
≥ 350 lbf. avg
PHYSICAL
PROPERTIES
Bond Strength ASTM C482 ≥ 50 psi (0.34 Mpa) ≥ 100 psi
THERMAL AND
IGROMETRIC
CHARACTERISTICS
Resistance to Freeze/
Thaw Cycling
ASTM C1026 As Reported Resistant
CHEMICAL
CHARACTERISTICS
Chemical Resistance ASTM C650 As Reported Unaffected
Stain Resistance ASTM C1378 As Reported Unaffected
SAFETY
CHARACTERISTICS
Dynamic coefficient of friction DCOF Requires a minimum value of 0.42 for commercial areas that are likely to be wet > 0.42 Wet
SELVA
5
7/8
”x35
3/8
” 15x90 cm
7
6/8
”x39
3/8
” 20x100 cm
9 mm
9 mm
This tiles complies recommended standard specifications for ceramics tiles ANSI A.137.1.
Finish
Matte
COLORED BODY PORCELAIN TILES
Rectied Edge