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Precast concrete products - Performance assessment and declaration; German and English version prEN 18190:2025

Industrial valves - Additional requirements for metallic valves for hydrogen application; German and English version prEN 18191:2025

Masonry products - Environmental product declarations for masonry units - Product category rules complementary to EN 15804:2012+A2:2019; German and English version prEN 18192:2025

Algae and algae products - Determination of inorganic arsenic in algae and algae products by anion-exchange (HPLC-ICP-MS); German and English version prEN 18196:2025

Algae and algae products - Determination of the amino acid profile of micro- and macroalgae; German and English version prEN 18197:2025

Algae and algae products - Nitrogen content measurement and protein content calculation for micro- and microalgae; German and English version prEN 18198:2025

Leather - Essential requirements for leather traceability; German and English version prEN 18199:2025

Algae and algae products - Determination of the phycocyanin content in Arthrospira (Spirulina); German and English version prEN 18204:2025

Qualification of welding procedures for plastic materials; German and English version prEN 18205:2025

Algae and algae products - Methods of sampling and analysis - Determination of fucoxanthin, beta carotene and lutein content in microalgae; German and English version prEN 18206:2025

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