Water Absorption Coefficient
| Date | 3/18/2003 |
| Test Method | EN 1925:1999 - Natural Stone Test Methods Determination of water absorption coefficient by capillarity |
| Test Conditions | Temperature of 23 +/-2 degrees C (73+/-4 degrees F) and 50% relative humidity |
| Exposure | Water immersion to a depth of 3 +/- 1mm |
| Exposed Surface | Back Face |
| Equipment |
Distilled Water Immersion Tray Setra Balance 2000g SN 144363 ITS ID P52606 Mitutoyo Digital Calipers SN 7003817 ITS ID 52650 |
| Time In | Time Out | Measurement | Specimen | |||||
| (mm/dd hh:mm) | (mm/dd hh:mm) | 1 | 2 | 3 | 4 | 5 | 6 | |
| Length (mm) | 70.3 | 72.9 | 70.3 | 68.5 | 69.7 | 73.5 | ||
| Width (mm) | 68.6 | 68.9 | 70.5 | 70.3 | 71.1 | 67.3 | ||
| Area (mm²) | 4823 | 5023 | 4956 | 4816 | 4956 | 4947 | ||
| Weight After | ||||||||
| 0 Minutes (g) | 426.09 | 432.26 | 428.26 | 424.60 | 422.29 | 434.09 | ||
| 3/18 10:49 | 3/18 10:50 | 1 Minute (g) | 430.39 | 437.31 | 433.18 | 428.74 | 426.46 | 439.51 |
| 3/18 10:52 | 3/18 10:56 | 5 Minutes (g) | 430.39 | 437.31 | 433.18 | 428.74 | 426.46 | 444.64 |
| 3/18 10:58 | 3/18 11:02 | 9 Minutes (g) | 430.39 | 437.31 | 433.18 | 428.74 | 426.46 | 446.79 |
| 3/18 11:05 | 3/18 11:15 | 19 Minutes (g) | 430.39 | 437.31 | 433.18 | 428.74 | 426.46 | 450.04 |
| 3/18 11:18 | 3/18 11:58 | 1.0 hour (g) | 430.39 | 437.31 | 433.18 | 428.74 | 426.46 | 457.50 |
| 3/18 12:00 | 3/18 13:01 | 2.0 hours (g) | 430.39 | 437.31 | 433.18 | 428.74 | 426.46 | 464.15 |
| 3/18 13:05 | 3/18 15:05 | 4.0 hours (g) | 430.39 | 437.31 | 433.18 | 428.74 | 426.46 | 472.76 |
| 3/18 15:09 | 3/18 21:00 | 9.9 hours (g) | 430.39 | 437.31 | 433.18 | 428.74 | 426.46 | 487.58 |
| 3/18 21:05 | 3/18 12:37 | 25.4 hours (g) | 430.39 | 437.31 | 433.18 | 428.74 | 426.46 | 504.04 |
| Time Square Root | Water Absorption (kg/m²) | |||||
| (s) | 1 | 2 | 3 | 4 | 5 | 6 |
| 0.0 | 0.00E+00 | 0.00E+00 | 0.00E+00 | 0.00E+00 | 0.00E+00 | 0.00E+00 |
| 7.7 | 8.92E-01 | 1.01E+00 | 9.93E-01 | 8.60E-01 | 8.41E-01 | 1.10E+00 |
| 17.3 | 1.60E+00 | 1.79E+00 | 1.77E+00 | 1.57E+00 | 1.83E+00 | 2.13E+00 |
| 23.2 | 2.00E+00 | 2.28E+00 | 2.20E+00 | 1.95E+00 | 2.22E+00 | 2.57E+00 |
| 33.8 | 2.61E+00 | 3.02E+00 | 2.88E+00 | 2.55E+00 | 2.81E+00 | 3.22E+00 |
| 59.5 | 3.97E+-00 | 4.78E+00 | 4.32E+00 | 3.86E+00 | 4.11E+00 | 4.73E+00 |
| 84.9 | 5.10E+00 | 6.28E+00 | 5.62E+00 | 4.99E+00 | 5.25E+00 | 6.08E+00 |
| 120.0 | 6.54E+00 | 8.12E+00 | 7.37E+00 | 6.40E+00 | 6.68E+00 | 7.82E+00 |
| 188.3 | 9.03E+00 | 1.12E+01 | 1.03E+01 | 8.92E+00 | 9.23E+00 | 1.08E+01 |
| 302.3 | 1.20E+01 | 1.45E+01 | 1.36E+01 | 1.17E+01 | 1.21E+01 | 1.41E+01 |
| Absorption Coefficient (kg/m²s²) | 3.93E-02 | 4.82E-02 | 4.47E-02 | 3.85E-02 | 3.94E-02 | 4.59E-02 |
| Mean Result | 0.0427 (kg/m²s²) | |||||
| Coefficient of Variation | 9.9% | |||||
| Time In | Time Out | Measurement | Specimen | |||||
| (mm/dd hh:mm) | (mm/dd hh:mm) | 1 | 2 | 3 | 4 | 5 | 6 | |
| Length (mm) | 70.4 | 72.9 | 70.3 | 70.4 | 70.6 | 73.5 | ||
| Width (mm) | 68.6 | 69.0 | 70.2 | 68.6 | 69.6 | 67.4 | ||
| Area (mm²) | 4829 | 5030 | 4935 | 4829 | 4914 | 4954 | ||
| Weight After | ||||||||
| 0 Minutes (g) | 420.81 | 427.44 | 425.93 | 422.02 | 419.91 | 429.55 | ||
| 5/12 12:34 | 5/12 12:44 | 10 Minutes (g) | 428.36 | 434.60 | 434.80 | 430.92 | 429.40 | 438.34 |
| 5/12 12:44 | 5/12 13:06 | 32 Minute (g) | 435.66 | 440.93 | 440.15 | 437.96 | 435.27 | 443.41 |
| 5/12 13:08 | 5/12 14:01 | 85 Minutes (g) | 443.60 | 448.45 | 446.46 | 446.71 | 442.74 | 449.76 |
| 5/12 14:03 | 5/12 16:14 | 216 Minutes (g) | 453.04 | 458.28 | 455.71 | 457.14 | 452.73 | 457.98 |
| 5/12 14:17 | 5/12 20:18 | 9.6 hours (g) | 461.23 | 466.79 | 464.47 | 465.79 | 461.49 | 465.79 |
| 5/12 20:20 | 5/13 14:00 | 27.3 hours (g) | 475.12 | 481.58 | 480.16 | 479.76 | 477.18 | 480.93 |
| 5/13 14:03 | 5/16 08:08 | 93.4 hours (g) | 487.41 | 496.27 | 495.13 | 490.27 | 490.51 | 495.18 |
| 5/16 08:11 | 5/20 10:10 | 191 hours (g) | 493.13 | 502.79 | 500.82 | 493.70 | 495.60 | 501.25 |
| 5/20 01:15 | 5/21 13:03 | 218 hours (g) | 493.98 | 503.85 | 501.75 | 494.39 | 496.15 | 501.87 |
| 5/21 13:06 | 5/23 16:00 | 269 hours (g) | 495.59 | 505.28 | 503.23 | 495.61 | 497.40 | 503.22 |
| Time Square Root | Water Absorption (kg/m²) | |||||
| (s) | 1 | 2 | 3 | 4 | 5 | 6 |
| 0.0 | 0.00E+00 | 0.00E+00 | 0.00E+00 | 0.00E+00 | 0.00E+00 | 0.00E+00 |
| 24.5 | 1.56E+00 | 1.42E+00 | 1.80E+00 | 1.84E+00 | 1.93E+00 | 1.77E+00 |
| 43.8 | 3.07E+00 | 2.68E+00 | 2.88E+00 | 3.30E+00 | 3.13E+00 | 2.80E+00 |
| 71.4 | 4.72E+00 | 4.18E+00 | 4.16E+00 | 5.11E+00 | 4.65E+00 | 4.08E+00 |
| 113.8 | 6.67E+00 | 6.13E+00 | 6.03E+00 | 7.27E+00 | 6.68E+00 | 5.74E+00 |
| 186.1 | 8.37E+00 | 7.82E+00 | 7.81E+00 | 9.06E+00 | 8.46E+00 | 7.32E+00 |
| 313.4 | 1.12E+01 | 1.08E+01 | 1.10E+01 | 1.20E+01 | 1.17E+01 | 1.04E+01 |
| 579.8 | 1.38E+01 | 1.37E+01 | 1.40E+01 | 1.41E+01 | 1.44E+01 | 1.32E+01 |
| 830.0 | 1.50E+01 | 1.50E+01 | 1.52E+01 | 1.48E+01 | 1.54E+01 | 1.45E+01 |
| 886.2 | 1.52E+01 | 1.52E+01 | 1.54E+01 | 1.50E+01 | 1.55E+03 | 1.46E+01 |
| 984.2 | 1.55E+01 | 1.55E+01 | 1.57E+01 | 1.52E+01 | 1.58E+01 | 1.49E+01 |
| Absorption Coefficient (kg/m²s²) | 3.48E-02 | 3.35E-02 | 3.35E-02 | 3.69E-02 | 3.56E-02 | 3.14E-02 |
| Mean Result | 0.0343 (kg/m²s²) | |||||
| Coefficient of Variation | 8.1% | |||||