Case C-473/24, Speyer & Grund: Judgment of the Court (Eighth Chamber) of 11 December 2025 (request for a preliminary ruling from the Bundesgerichtshof – Germany) – Speyer & Grund GmbH & Co. KG v Werner & Mertz GmbH (Reference for a preliminary ruling – Regulation (EU) No 528/2012 – Article 3(1)(a) – Concept of biocidal product – Condition as to the intended purpose of the product – Vinegar-based products intended for use as both foodstuffs and cleaning products/disinfectants for foodstuffs (multi-purpose products) – Scope of Regulation No 528/2012 – Article 2(1) and (2) – Annex V – List of the types of biocidal products covered by the regulation – Protection of human and animal health and the environment)