Paper, board, pulps and cellulosic nanomaterials - Determination of dry matter content by oven-drying method - Part 2: Suspensions of cellulosic nanomaterials (ISO 638-2:2022)

This document establishes a standardized procedure for determining the dry matter content in cellulose nanomaterial suspensions using the oven-drying method. It serves as the second part of a broader series focusing on paper, board, pulp, and cellulose nanomaterials, specifically addressing the unique requirements associated with nanostructured fiber forms. The protocol outlines the necessary equipment, sample preparation techniques, and specific drying conditions to ensure accurate and reproducible results across different laboratories. By providing a uniform approach for moisture removal and residue measurement, this technical specification facilitates consistent quality control and material characterization within the industry. The method is designed to handle various suspension types while maintaining precision in quantifying the solid fraction after evaporation under controlled thermal conditions. This approach supports reliable data exchange between manufacturers, researchers, and testing facilities by defining clear operational steps and acceptance criteria for the analysis of nanocellulose products.