CARTER GLASS MOSAIC TECHNICAL SPECIFICATIONS
EVALUATED IN ACCORDANCE WITH ANSI STANDARD A137.1
| TEST |
DESCRIPTION |
RESULT |
STATUS |
| ASTM C373 |
Water Absorption |
0.00% |
Passes |
| ASTM C424 |
Crazing Resistance |
no evidence of crazing |
Passes |
| ASTM C482 |
Bond Strength |
496 psi, Average |
Passes |
| ASTM C484 |
Thermal Shock Resistance |
no evidence of visual defects |
Passes |
| ASTM C1026 |
Freeze-Thaw Cycling |
no visible evidence of damage |
Passes |
| ASTM C1027 |
Abrasion Resistance |
Class IV Commercial Grade Rating |
Passes |
| ASTM C1028 |
Static Coefficient of Friction |
DRY 0.74 WET 0.49 |
See Note |
NOTE: High coefficients of friction indicate potentially good traction. The Access Board of the U.S. Department of Justice, the Ceramic Tile Institute, and the City of Los Angeles, recommend a minimum average static coefficient of friction, as assessed using this test method, of 0.60 for level floors and 0.80 for ramps. Slip resistance can be affected by floor coatings, contamination, and other maintenance related procedures.
ADDITIONAL TESTING
| TEST |
RESULT |
| Surface Micro-Roughness (Rtm) |
Average surface roughness: 20.1 microns. |
Surface roughness, when combined with a high coefficient of friction, improves wet traction on many types of flooring surfaces. For level floors that occasionally become wet with water in use, a minimum roughness of 10 microns is recommended for safety. (This does not apply to some floors that are chemically treated to increase slip resistance.)
For reference only, approximate surface roughness of some materials commonly found in hardware stores:
| Material |
Roughness, Microns |
| Clear glass Picture frame, non-glare (lightly frosted) glass |
0.1 |
| Silicon carbide waterproof sandpaper, 1500 grit (extremely fine) |
3.0 |
| Silicon carbide waterproof sandpaper, 400 grit (super fine) |
13.0 |
| Silicon carbide waterproof sandpaper, 320 grit (extra fine) |
30.0 |
| Emery cloth, industrial grade, 150 grit (fine) |
46.0 |
|
