Metropolitan Ceramics Unglazed Quarry Tile Test Results

By ANSI Standard Specification A 137.1 Metropolitan® Ceramics' unglazed tile is classified as quarry tile, however, the exceptional technical characteristics noted enables Metropolitan quarry tile to be used in virtually any application suitable for tile.

Abrasion Resistance ASTM C1243 Maximum Value of 275 mm³ Metropolitan tests at < 275 mm³
Absorption 5-hour boil ASTM C373 Maximum 5% Metropolitan tests at 3% maximum and qualities as vitreous
Breaking Strength ASTM C648 Average ≥ 250 lbf. Metropolitan tests at 400lbf. or better
Thickness ASTM C499 Max. range of .050” Metropolitan meets the standard.
Nominal Size ASTM C499 The facial dimension of each tile in the sample shall not vary more than ±2.00% from the nominal dimension. Metropolitan meets the standard
Freeze/Thaw ASTM C1026 Observations after 300 cycles.
No visible damage.
Metropolitan meets the standard
Shear Bond Strength ASTM C482 50 P.S.I. or better Metropolitan exceeds the standard
DCOF Acu Test (wet) ANSI A326.3-2017
BOT 3000
No industry standard.
Threshold of 0.42
At time of manufacture, Metropolitan QUARRYBASICS XA Abrasive tests at ≥0.70. All other Metropolitan products exceed 0.60.
Warpage ASTM C485 Min. -1.5%  Max. 1.5%
along any edge.
Min -1.0% Max 1.0%
on either diagonal.
Metropolitan meets the standard
Wedging ASTM C502 Min. -1.0% Max. 1.0% Metropolitan meets the standard
Chemical Resistance ASTM C650 As Reported Class A Classification
Stain Resistance ASTM C1378 As Reported Metropolitan meets the Standard
Scratch Hardness MOHS No Industry Standard 7