{"id":"114d0fd0-bc3f-4fcc-82e2-cd4497dac21e","task":"Distinguish medical-surgical vacuum systems from WAGD (waste anesthetic gas disposal) systems","domain":"nfpa.org","steps":["Confirm medical-surgical vacuum serves general patient suction/aspiration needs, while WAGD specifically captures and carries away gases vented from the patient breathing circuit during anesthesia/analgesia equipment operation","Confirm that where WAGD and medical-surgical vacuum are combined into one system, WAGD inlets must be labeled and colored differently from medical vacuum inlets and keyed so their fittings/devices cannot be interchanged","Confirm a combined-use connection point must be located a minimum distance from any medical vacuum inlet (commonly cited as 5 ft) — verify against current edition text","Confirm the combined-system oxidizer concentration limit (commonly cited as maintaining total oxygen + nitrous oxide concentration below 23.6%); if this cannot be assured, the vacuum pump(s) must meet WAGD-rated pump requirements (lubricants/seals inert in the presence of oxidizers)","Confirm minimum WAGD piping size (commonly cited as 1/2 inch NPS) against the current edition text"],"gotchas":["Combining WAGD and medical-surgical vacuum without meeting the oxidizer-concentration and keyed-fitting requirements creates a fire/interchange hazard — do not assume the two systems can simply share piping without these controls","Specific numeric figures (5 ft separation, 23.6% oxidizer limit, 1/2 inch minimum pipe size) should be confirmed against the current NFPA 99 edition text before use in design documents"],"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/114d0fd0-bc3f-4fcc-82e2-cd4497dac21e"}