DIN EN ISO 638-1:2022-07 Paper, board, pulps and cellulosic nanomaterials - Determination of dry matter content by oven-drying method - Part 1: Materials in solid form (ISO 638-1:2022); German version EN ISO 638-1:2022
2021DIN EN ISO 638-1:2021 Paper, board, pulps and cellulosic nanomaterials - Determination of dry matter content by oven-drying method - Part 1: Materials in solid form (ISO 638-1:2021); German version EN ISO 638-1:2021
2020DIN EN ISO 638-1:2020 Paper, board, pulps and cellulosic nanomaterials - Determination of dry matter content - Oven-drying method - Part 1: Materials in solid form (ISO/DIS 638-1:2020); German and English version prEN ISO 638-1:2020