What aspect does the ANSI A137.1 standard primarily focus on for ceramic tiles?

The ANSI A137.1 standard primarily focuses on the physical properties of ceramic tiles. This standard outlines the required specifications and testing methods for ceramic tiles to ensure they meet certain quality and performance criteria. These properties include characteristics such as water absorption, breaking strength, abrasion resistance, and thermal shock resistance, among others. By defining these physical properties, the standard aims to provide guidance for manufacturers and consumers to assess the durability and suitability of ceramic tiles for various applications in construction and design. Understanding these physical aspects is crucial for ensuring that tiles perform well under different conditions and meet the expectations of both builders and homeowners.