The EN 13501-2 standard is the European benchmark for the fire classification of construction products and building elements based on their fire resistance performance. It specifically excludes ventilation services but covers a wide range of loadbearing and non-loadbearing elements. 

• British Library (London)
• Deutsche Nationalbibliothek (Leipzig/Frankfurt)
• Bibliothèque nationale de France (Paris)

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Fire-protective coatings and horizontal protective membranes. Metal Quartz Current Version (2023 Update) The latest version is EN 13501-2:2023

While you might search for a "free download," standard organizations like BSI, DIN, or CEN typically charge for full access to fund the development of these safety regulations. However, there are ways to view the content: Fire Classification DIN EN 13501-2 - Thermosash