Information & Help DCOF AcuTestâ¢. At Daltile, weâve always championed the best solutions our industry has to offer. Thatâs why weâre among the first to join the Tile Council of North America in testing our products with DCOF AcuTest, a new industry standard for measuring the dynamic coefficient of friction (DCOF).
This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. A zarf (plural: zarfs, zuruuf, zarves) is a holder, usually of ornamental metal, for a coffee cup without a handle (demitasse or fincan).
Cutting a kerf in the stone will give you greater control. A kerf is a shallow saw cut, usually less than an inch deep. You can create a kerf almost anywhere you need it. Place a chisel or large screwdriver in the kerf and give it a solid blow with the hammer. The rock will split in two under the kerf.