DIN EN ISO 638-2:2022 Paper, cardboard, fiber and cellulose-containing nanomaterials – Determination of dry content using the heating oven method – Part 2: Suspensions of cellulose-containing nanomaterials (ISO 638-2:2022)
2021DIN EN ISO 638-2:2021 Paper, board, pulps and cellulosic nanomaterials - Determination of dry matter content by oven-drying method - Part 2: Suspensions of cellulosic nanomaterials (ISO 638-2:2021); German version EN ISO 638-2:2021
2020DIN EN ISO 638-2:2020 Paper, board, pulps and cellulosic nanomaterials - Determination of dry matter content by oven-drying method - Part 2: Suspensions of cellulosic nanomaterials (ISO/DIS 638-2:2020); German and English version prEN ISO 638-2:2020