Resistance to Household Detergents: The document details the resistance of quartz-based materials to various household cleaning products after 16 hours of application. Most products showed no visible effect, indicating high resistance.

Contact with Food: Tests were conducted to determine the overall migration of substances from quartz materials intended to come into contact with food. The materials were found suitable for contact with distilled water, sunflower oil, ethyl alcohol, and acetic acid, with migration values well below acceptable limits.

Stain Resistance: The quartz materials were tested for resistance to cold liquids and stains after 16 hours of exposure. Results showed no visible effects for most substances, with only slight blemishes in a few cases.

Technical Characteristics of Quartz Base: The document provides technical specifications for quartz materials, including:

• Apparent Density: 2387 kg/m³
• Water Absorption: 0.05%
• Slip Resistance: Classified as R9 with an average acceptance angle of 6.7°
• Deep Abrasion Resistance: 15.4 mm
• Impact Resistance: 2 J
• Linear Thermal Expansion Coefficient: 21.0x10^-6 °C^-1
• Compressive Strength: 218 MPa