The following are some of the common specifications of acid-resistant tiles:

1. Chemical resistance: Acid-resistant tiles should be able to withstand exposure to a wide range of acids, alkalis, and other chemicals without degradation. The specific chemicals that the tiles can withstand should be specified by the manufacturer.

2. Water absorption: The water absorption of the tiles should be low to prevent chemical penetration into the tile. This is typically expressed as a percentage.

3. Compressive strength: The compressive strength of the tiles is the maximum load that they can withstand before they fail. This is typically measured in megapascals (MPa).

4. Abrasion resistance: The abrasion resistance of the tiles is their ability to resist wear from foot traffic and equipment. This is typically measured in terms of the amount of material lost during testing.

5. Thermal shock resistance: The thermal shock resistance of the tiles is their ability to withstand sudden changes in temperature without cracking or breaking.

6. Size and shape: Acid-resistant tiles are available in a variety of sizes and shapes, including square, rectangular, and hexagonal shapes, as well as various thicknesses.