The
covering for (floor or wall) shall
be in first-quality glazed porcelain
tiles available in the following
sizes:…..inches (6x6, 6x12,
12x,12, 18x18), with a thickness
of 9 mm. Surface finish shall
be: textured (matte or slate).
The selected type, called (see
series), belongs to the ….range
(Travertine, Earthstone, Slate)
by Iris US, is …..in color
(see series). This material is
made from an atomized mixture
of: quartzes, feldspars, clays,
and kaolins, pressed (600kg/cm²),
sintered at 1300ºC, and is
homogeneous throughout its thickness.
The elements resulting from this
procedure belong to the CI UGL
“completely vitrified”
group (UNI EN 176 or Bla ISO 13006
regulations). The requirements
of the following material must
present the average values: width
and length, rectilinear and orthogonal
measurements and planarity: ±
0.2% (ISO 10545.2 testing method
regulations); thickness: ±
2% (ISO 10545.2 testing method
regulations); water absorption:
0.04% (ISO 10545.3 testing method
regulations); deep abrasion resistance:
120 mm³ (ISO 10545.6 testing
method regulations); flexion resistance:
55N/mm² (ISO 10545.4 testing
method regulations). They must
also be resistant to chemical
aggression, staining, and frost.