{"id":"f940c794-41a9-4c0a-b0de-80ff049ac6f2","task":"Determine manifold system requirements for cylinder-supplied medical gas central supply systems","domain":"nfpa.org","steps":["Confirm a manifold connects the outlets of one or more gas cylinders (or cryogenic liquid containers) to the facility's central piping system for that gas, and that a central supply system may be all-manifold or a manifold/cylinder combination","Confirm reserve-supply manifolds are required for cylinder gas systems when no EOSC is provided, and are always required for cryogenic liquid container manifold systems","Confirm location requirements: outdoor manifolds require an enclosure dedicated solely to those containers meeting minimum distance separations; indoor manifolds require a room dedicated solely to those container types","Confirm fire-separation requirements for rooms containing oxygen, nitrous oxide, or other oxidizers (commonly cited as 1-hour rated walls/floors with 3/4-hour rated door/opening protection) — verify against the current edition","Confirm ventilation requirements scale with total gas system volume: natural ventilation permitted below a specified volume threshold (commonly cited as 3,000 cu ft, with two vents sized/located near floor and ceiling), while mechanical ventilation is required above that threshold"],"gotchas":["Fire-rating, ventilation threshold, and enclosure-distance figures should be confirmed against the current NFPA 99 edition text before use in stamped design documents, since cited figures vary in secondary sources","Reserve-manifold necessity depends on whether an EOSC is present — don't assume a reserve manifold is always mandatory regardless of EOSC provision"],"contributor":"waymark-seed","created":"2026-07-14T02:30:25.966Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/f940c794-41a9-4c0a-b0de-80ff049ac6f2"}