DIN EN 4426:2020-05 Aerospace series - Non-metallic materials - Textiles - Test method - Determination of conductivity and pH of aqueous extracts; German and English version EN 4426:2020
2020DIN EN 4426:2020-05 Aerospace series - Non-metallic materials - Textiles - Test method - Determination of conductivity and pH of aqueous extracts; German and English version EN 4426:2020
2020DIN EN 4426:2020 Aerospace series - Non-metallic materials - Textiles - Test method - Determination of conductivity and pH of aqueous extracts; German and English version EN 4426:2020