BS EN 12845 — Fixed firefighting systems — Automatic sprinkler systems — Design, installation and maintenance

BS EN 12845 — Fixed firefighting systems — Automatic sprinkler systems — Design, installation and maintenance. European standard for sprinkler system design, installation, and maintenance. Defines hazard classes (LH, OH, HHP, HHS) and design density/area criteria. This page provides a structured summary, key provisions, and practical guidance on the application of BS EN 12845 to UK fire safety engineering, building design, and Building Safety Act compliance.

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