How Many Toilets? Sanitary Fixture Counts, EN vs IPC
Where minimum toilet and washbasin numbers come from under the IPC and in Europe, with a 120-person office calculated both ways.
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Standards compared
Fire Hose Cabinets and Hose Valves: EN 671 vs NFPA 14
EN 671 defines the hose reel product; NFPA 14 defines the whole system. What each covers, how coverage and pressure differ, and a layout that satisfies both.
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Emergency Lighting: Quick Design Rules (EN 1838 / NFPA 101)
EN 1838 / EN 50172 and NFPA 101 emergency lighting values side by side, what the difference means on a project, and where every luminaire must go.
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IEC vs NEC: Earthing, Grounding and Bonding Terms Compared
A side-by-side dictionary of IEC and NEC earthing, grounding and bonding terms, a labelled service-entrance diagram and what the differences mean on a project.
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EN 54-14 vs NFPA 72: Fire Alarm Design Differences
Key fire alarm design values under EN 54 / CEN/TS 54-14 and NFPA 72 side by side: detector coverage, call points, sound and visual alarms, zoning, cabling and standby power.
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EN 12845 vs NFPA 13: Key Differences for Designers
A side-by-side comparison of EN 12845 and NFPA 13 sprinkler design: classes, densities and areas, hose allowance, durations, spacing, pressures and what it means on a project.
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Drainage Pipe Sizing: EN 12056 DU vs IPC DFU
EN 12056 discharge units and IPC drainage fixture units side by side: how each turns fixtures into a pipe size, and the same 10-flat stack sized both ways.
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ASHRAE 62.1 vs EN 16798: Ventilation Rates Compared
How ASHRAE 62.1 and EN 16798-1 set outdoor air rates, side by side, with the same 400 m² office calculated under both (220–275 L/s vs 560 L/s) and what the difference means on a project.
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