Via Maestra
An evolving journey through time and matter
An evolving journey through time and matter
| Test method | Required value | Average values | ||
| Water absorption | ASTM C373 | ≤ 0.5% | 0,5% | |
| Breaking strength | ASTM C648 | ≥ 125 lbf | 400 lbf 9mm 2,800 lbf 20mm | |
| Deep abrasion resistance | ASTM C1243 | ≤ 175 mm3 | 145 mm3 | |
| Linear thermal expansion | ASTM C372 | Not Required | α ≤ 4.4 x 10-6 °F-1 /α ≤ 8 x 10-6 °C-1 | |
| Stain resistance | ASTM C1378 | As indicated by manufacturer | A RESISTANT | |
| Chemical resistance | ASTM C650 | As indicated by manufacturer | A RESISTANT | |
| Frost resistance | ASTM C1026 | As indicated by manufacturer | RESISTANT | |
| Shade variation | ANSI A137.1 | As indicated by manufacturer | V3 | |
| Slip resistance | ANSI A326.3 | Porcelain A326.3 | DCOF ≥ 0.42 | |
| Flame spread | ASTM E84 | - | Class A | |
| Thermal conductivity | EN 12524 | - | λ = 1,3 W/m °K / 0.7 BTU/ft h °F |
