Flexible Waterproofing. Bituminous, Plastic and Rubber Waterproofing for Roofs. Sampling Rules

This document outlines specific procedural guidelines for the collection of representative samples used in the evaluation of flexible waterproofing systems. It focuses on materials designed for roofing applications, encompassing products based on bitumen, plastics, and rubber. The text details the technical requirements necessary to ensure that sampled materials accurately reflect the characteristics of the entire batch or lot under investigation. By establishing uniform methodologies, the standard supports consistent quality assessment across the construction sector. It addresses various scenarios encountered during the sampling process, from initial selection to final packaging for laboratory testing. The scope covers both finished products and raw materials utilized in the manufacturing of roofing waterproofing layers. Adherence to these procedures helps facilitate reliable comparison of material performance and ensures compliance with technical specifications. This framework is essential for manufacturers, suppliers, and testing laboratories engaged in the certification and quality control of roofing waterproofing membranes.