Kerbs of natural stone for external paving - Requirements and test methods

This document outlines the technical specifications and test methods for the external finish of natural stone curbstones. It establishes uniform criteria to ensure the quality, durability, and performance of finished stone surfaces used in paving and roadside applications. The text details the procedures for evaluating surface texture, dimensional accuracy, and visual appearance, providing a systematic approach for manufacturers and testing laboratories. By defining consistent measurement protocols, it facilitates fair assessment and comparison of products across different market segments. The content covers sample preparation, testing conditions, and interpretation of results to verify compliance with the set requirements. These guidelines support the production of reliable stone curbs that meet established safety and aesthetic standards for infrastructure projects. The focus remains strictly on the methodological framework for assessing the outer layer of natural stone elements without addressing broader market implications or organizational origins.