2021LST 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)
2009LST EN ISO 638:2009 Paper, board and pulps - Determination of dry matter content - Oven-drying method (ISO 638:2008)