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Lab design notes
Reference notes on the clearances, services and airflow rules LabPlanner pre-checks — the numbers, where they come from, and what they do not cover.
How far a fume cupboard should sit from a door
Why a sash needs distance from a doorway, what the 1500 mm pre-check covers, and why measuring to the jamb rather than the door centre matters.
Laboratory aisle widths: what 1200 mm is, and is not
The 1200 mm aisle is a floor, not a target: what counts as an aisle, why seated positions need 1500 mm, and what issued drawings actually run.
Where a microbiological safety cabinet should not go
EN 12469 siting in three numbers: 1500 mm from doorways, 1000 mm from circulation, 3000 mm from a facing sash, and why only one of them is an error.
Emergency showers and eyewash: a services question first
Drainage and a serviced wall decide where a safety shower can stand before any reach distance does, and why the travel-distance rule was removed.
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