DIN EN 17891:2022-08 Conservation of cultural heritage - Desalination of porous inorganic materials by poultices; German and English version prEN 17891:2022 / Note: Date of issue 2022-07-15
2023DIN EN 17891:2023-12 Conservation of cultural heritage - Desalination of porous inorganic materials by poultices; German version EN 17891:2023
2022DIN EN 17891:2022-08 Conservation of cultural heritage - Desalination of porous inorganic materials by poultices; German and English version prEN 17891:2022 / Note: Date of issue 2022-07-15