Judgment of the Court (Eighth Chamber) of 11 December 2025.#Speyer & Grund GmbH & Co. KG v Werner & Mertz GmbH.#Request for a preliminary ruling from the Bundesgerichtshof.#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.#Case C-473/24.