"ASTM F3191-23 Standard Practice for Field Determination of Substrate Water-Absorption (porosity) for Receiving Resilience Flooring" provides a standard method for field determination of water-absorption or porosity of substrates used for laying resilience flooring. The standard is designed to help evaluate the pore structure of substrates and their ability to absorb moisture, which is critical for the mass of floor installations. By measuring the water-absorption of substrates, it is possible to determine whether they are suitable for receiving resilience flooring and avoid mass problems such as poor adhesion and deformation due to substrate problems after floor laying. This standard applies to the upfront inspection of resilience flooring installations in a variety of building and industrial applications, helping to ensure the durability and performance of flooring installations.