I MAGINE WHAT'S POSSIBLE
S P R I N G 2 0 1 6 P R O D U C T C ATA LO G
Dal-Tile Corporation has always been proud to support solutions that
better our industry. That's why we're among the first to join the Tile
Council of North America in testing our products with DCOF AcuTest
a new industry standard used to measure dynamic coefficient of
friction (DCOF). DCOF AcuTest
assesses a product's suitability for
the commercial environment and the specific usability needs of the
A MEASURE OF FRICTION
Friction is the force that resists the sliding motion of one surface against
another. Contaminants, such as liquids, can alter the measurement
of friction. There are two types of friction: static (SCOF) and dynamic
(DCOF). SCOF is the ratio of forces necessary to start two surfaces
sliding. This is what the former ASTM C1028 static test measured. DCOF
is the ratio of forces necessary to keep two surfaces sliding.
OUT WITH THE OLD, IN WITH THE NEW
Dal-Tile Corporation, in partnership with the TCNA, is proud to
endorse the DCOF AcuTest
because it's the most accurate method
for determining whether or not a product is suitable for a commercial
Similar to measuring the speed of a car in both mph and kph, friction
can also be measured on two scales (DCOF and SCOF). The new 0.42
wet (DCOF) is replacing the old reference of 0.60 SCOF wet, which has
long been the benchmark for friction in commercial applications.
The new, more stringent DCOF AcuTest
uses a portable robot that,
unlike ASTM C1028, gives realistic values on very smooth surfaces.
While the industry standard is changing, the quality you can count on
from us remains the same. Visit www.daltile.com/DCOF to learn more.
WATER ABSORPTION, ASTM C373-88
Water absorption is measured using ASTM C373-88. Individual tiles
are weighed, saturated with water, then weighed again. The percent
difference between the two conditions is referred to as the water
absorption value. Tiles are classified according to water absorption
percentages as follows:
Tiles exhibiting 0.5% or less
Tiles exhibiting more than 0.5%, but not more than 3.0%
Tiles exhibiting more than 3.0%, but not more than 7.0%
Tiles exhibiting more than 7.0%
SCRATCH HARDNESS (MOHS SCALE RATINGS)
The relative hardness of tile is an important issue that should be
addressed when selecting a tile. The test is performed by scratching the
surface of the tile with different minerals and subjectively assigning a
"MOHS Scale Hardness" number to the surface. The softest mineral used
is talc ("1" rating) - the hardest is a diamond ("10" rating). Other minerals
of varying hardness providing MOHS Scale Hardness values of 5 or
more are suitable for most residential floor applications. A value of 7 or
greater is normally recommended for commercial applications.
BREAKING STRENGTH CERAMIC TILE, ASTM C648-04
Ceramic tiles used on floors and walls must be able to withstand the
expected load-bearing capacity of various installations. The tile industry
uses ASTM C648-04 to determine the strength and durability of the
tile. A force is applied to an unsupported portion of the tile specimen
until breakage occurs. The ultimate breaking strength is then recorded
in pounds. Final selection of the tile should be based upon the breaking
strength and the appropriate installation method. Tile integrity is
critically dependent upon proper installation. Daltile recommends strict
adherence to industry installation guidelines set forth in ANSI A108, A118
CHEMICAL RESISTANCE, ASTM C650-04
Chemical resistance is measured using ASTM C650-04. A tile sample is
placed in continuous contact with a variety of chemicals for 24 hours,
rinsing the surface and then examining the surface for visible variation.
Tiles range from complete consistency to a more random appearance.
Here's an overview of color and shading of individual tile selections.
Monochromatic (V0) - Very uniform, monochromatic color
Low (V1) - Consistent color within each tile and from tile to tile
Medium (V2) - Color variation within each tile
High (V3) - Some variation from tile to tile, and within each tile
Random (V4) - Considerable variation from tile to tile
ABRASION RESISTANCE, ASTM C1027-99
The durability of glazed tile is measured subjectively by observing
the visible surface abrasion of the tile when subjected to the ASTM
C1027-99 testing procedure. Dal-Tile Corporation evaluates glazed
tile recommended for floor applications using this test method which
includes the following classification system:
Not recommended for use on floors.
- Residential floor coverings in areas
subject to soft-soled footwear or normal footwear
traffic, without scratching dirt (i.e. domestic
bathrooms and bedrooms without exterior access).
Medium to Light Traffic
- Residential floor
coverings in areas subject to soft-soled footwear
or normal footwear traffic with small amounts of
scratching dirt (i.e. rooms in the living areas of
homes except kitchens, entrances and other areas
that may be subjected to high usage).
or Light Commercial)
Medium to Heavy Traffic
- Residential or light
commercial may withstand normal footwear
and regular traffic, with some dirt and/or other
abrasives present in limited quantities. Tile in this
class may be used in light commercial installations
with limited foot traffic and with no direct access
to the outside. Examples may include residential
kitchens and hallways with limited traffic from
- Residential and commercial floor
coverings subjected to considerable traffic and
scratching dirt (i.e. entrances, workrooms, inns,
exhibition halls, and sales rooms, as well as other
rooms in public and private buildings). Floors
should be adequately protected against scratching
dirt at the entrances to buildings by either floor
mats or some other footwear cleaning device.
- Heavy commercial floor coverings
subject to heavy traffic with very abrasive soil.
The American Society for Testing and Materials (ASTM) and the
American National Standards Institute (ANSI) are nationally recognized
organizations, which identify and develop industry test methods and
Neither ASTM nor ANSI establish an industry standard identifying a
minimum COF value whereby ceramic tile may be labeled "slip resistant".
All Standard Grade ceramic tile products manufactured by or for Dal-Tile
Corporation meet or exceed the requirements of ANSI A137.1. Glass tile
meets or exceeds the requirements of ANSI A137.2. See product pages for
series-specific technical data.
PORCELAIN/CERAMIC TEST RESULTS
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