|Below is a template for you to use in preparing a final, tile specification incorporating tile products marketed under the name Down to Earth®, a product line from Metropolitan Ceramics, manufactured by Ironrock Capital, Inc. This section includes installation materials not manufactured by Metropolitan Ceramics using the reference standard method of specifying.
A typical specification to assure the use of Down to Earth® unglazed textured quarry tile on your next job should be written as follows:
|Click here to download complete Sample Specification|
|- 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||D.T.E. tests at < 275 mm³|
|Absorption 5-hour boil||ASTM C373||Maximum 5%||D.T.E. tests at 3% maximum and qualities as vitreous|
|Breaking Strength||ASTM C648||Average ≥ 275 lbf.||D.T.E. tests at 800lbf. or better|
|Thickness||ASTM C499||Max. range of .050”||D.T.E. 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.||D.T.E. meets the standard|
|Freeze/Thaw||ASTM C1026||Observations after 300 cycles.
No visible damage.
|D.T.E meets the standard|
|Shear Bond Strength||ASTM C482||50 P.S.I. or better||D.T.E. exceeds the standard|
|DCOF Acu Test (wet)||ANSI 137.1-2012 BOT 3000||No industry standard
threshold of 0.42
|At time of manufacture, D.T.E. colors meet or exceed measure of 0.60 wet.|
|Warpage||ASTM C485||Min. -1.5% Max. 1.5%
along any edge.
Min -1.0% Max 1.0%
on either diagonal.
|D.T.E. meets the standard|
|Wedging||ASTM C502||Min. -1.0% Max. 1.0%||D.T.E. meets the standard|
|Chemical Resistance||ASTM C650||As Reported||Class A Classification|
|Stain Resistance||ASTM C1378||As Reported||D.T.E meets the Standard|
|Scratch Hardness||MOHS||No Industry Standard||7|