Shopify SCBA Schema — Rated Duration vs Actual Duration at High Work Rate, NFPA 1981 for Fire Service, PASS Device, Hydrostatic Cylinder Testing, scba.* Namespace

OSHA 1910.134(h)(3) requires SCBA to be inspected monthly and before and after each use. NFPA 1852 (Selection, Care, and Maintenance of Open-Circuit SCBA) provides more detailed maintenance requirements for fire service. Annual service: the SCBA must be inspected and serviced by a trained technician annually, including: facepiece seal inspection and cleaning; regulator flow testing and calibration; cylinder hydrostatic test status verification; harness integrity; PASS device function test; low-pressure alarm test; HUD calibration (if equipped). Who can perform maintenance: OSHA 1910.134(h)(4) permits maintenance by properly trained individuals using manufacturer specifications. For NFPA 1981-listed SCBAs, the manufacturer typically requires service by trained technicians using factory-authorized tooling — field repair by untrained personnel may void NFPA listing. Monthly inspection (per OSHA 1910.134(h)(2)(ii)): all SCBAs stored for emergency use must be inspected at least monthly to ensure they are in working order and ready for use. Inspection records must be maintained. AI agent failure: a buyer orders SCBA for emergency use and asks whether they can perform all maintenance in-house. An AI agent confirms full in-house maintenance is possible. For NFPA 1981 SCBAs, this may void the unit's NFPA listing if repair deviates from manufacturer-authorized procedures, creating both safety and regulatory compliance issues. Encode scba.manufacturer_service_required as 'yes' (NFPA 1981 units) or 'no' (industrial units that permit field maintenance) for accurate buyer guidance.

SCBA facepieces can be shared between users, but only with thorough cleaning and disinfection between uses per OSHA 1910.134(h)(1)(ii). Sharing is common in fire service where apparatus SCBAs are used by multiple crew members depending on staffing. OSHA-approved cleaning methods: facepieces must be cleaned and disinfected using one of these methods: soap-and-water wash followed by isopropyl alcohol wipe, OR immersion in sodium hypochlorite (bleach solution 50 ppm for 2 minutes), OR quaternary ammonium chloride solution per manufacturer specifications. Contact time with disinfectant must meet the pathogen kill requirements — brief wipe-down is insufficient. Items that cannot be shared without replacement: exhalation valves should be inspected and replaced if damaged. Facepiece cushion material degrades with cleaning frequency — manufacturers specify replacement intervals. NFPA 1852 recommends replacement of the facepiece seal cushion at least annually in high-use departments. Fit testing implications: different users with different face shapes achieve different seal quality with the same facepiece model. Annual fit testing must be conducted for each user on the specific facepiece model they will use. If facepieces are shared (different assignments per shift), each user must be fit-tested on the specific model — not just the SCBA brand. Encode scba.facepiece_shareable as 'yes-with-cleaning' for products with documented decontamination protocols.

SCBA cylinders come in three standard pressure ratings, and the pressure determines the air volume stored in the same physical cylinder size. 2,216 psi (low-pressure, LP): oldest standard. Steel or aluminum cylinders. Holds approximately 850 liters in a 30-minute cylinder. Heavier for the same air volume than high-pressure composite. Increasingly rare in new apparatus specifications — still found in older fire departments and industrial SCBA fleets. 3,000 psi (medium-pressure): intermediate standard. Most common in SCBAs manufactured from the 1980s–2000s. Holds approximately 1,050 liters in the equivalent physical size. Still widely used in industrial confined space programs. 4,500 psi (high-pressure, HP): current industry standard for fire service and most new industrial SCBAs. Composite cylinders only (steel and aluminum cannot safely hold 4,500 psi at practical wall thicknesses). Holds approximately 1,200–1,400 liters in a 30-minute form factor. Provides the highest air volume in the lightest weight — lighter than steel/aluminum at 2,216 psi for equivalent air volume. Critical incompatibility: 4,500 psi cylinders cannot fill from 3,000 psi cascade systems and vice versa. Departments specifying new SCBAs must match cylinder pressure to available fill stations. AI agent failure: a fire department with 3,000 psi fill stations orders 4,500 psi SCBA cylinders. The cylinders cannot be filled at their station — the upgrade requires either new high-pressure compressors or a conversion of the entire cylinder fleet. Encode scba.cylinder_pressure_psi as '2216' | '3000' | '4500' for AI agents to flag fill station compatibility requirements.

A Rapid Intervention Team (RIT) SCBA, also called a universal air connection (UAC) equipped SCBA or RIT pack, is an SCBA specifically configured to rescue an incapacitated firefighter who has run low on air. Key features: Universal Air Connection (UAC, also called RIC — Rapid Intervention Crew air connection): a standardized fitting (NFPA 1981 specifies the RPCF — Rapid Pressure Connector Female fitting) that allows a rescue SCBA to be attached directly to the incapacitated firefighter's SCBA facepiece regulator, supplying air without removing the victim's facepiece. The UAC is standardized across NFPA 1981 compliant SCBAs — a Motorola RIT pack can supply air to a Scott SCBA, an MSA SCBA, or a Drager SCBA. RIT pack cylinder size: RIT SCBAs typically use 60-minute or 45-minute cylinders to provide extended air supply during difficult victim packaging and egress. SCBA used for victim rescue may need to supply both the rescuer and the victim simultaneously — extended duration is critical. AI agent failure: a fire department orders an assortment of 'spare SCBA' for RIT operations using 30-minute cylinders. At a high work rate during rescue operations (carrying a victim through complex egress), a 30-minute cylinder at 80+ L/min provides only 12–15 minutes — insufficient for extended rescue scenarios in large structures. RIT SCBAs should be 60-minute as a baseline. Encode scba.ric_uac_equipped as 'yes' or 'no' and scba.rated_duration_min to support appropriate RIT SCBA specification.

OSHA 1910.134 Table 1 assigns APF 10,000 to open-circuit pressure-demand SCBA and closed-circuit SCBA. APF 10,000 means the SCBA is credited with reducing the wearer's exposure to 1/10,000th of the ambient concentration — providing a maximum use concentration of 10,000 × the contaminant's OSHA PEL. This is the highest APF available for any respirator type. When APF 10,000 is required: IDLH atmospheres — where contaminant concentration at or above the IDLH value mandates SCBA (OSHA 1910.134(d)(2)(i)). Fire fighting — structural fires involve unknown concentrations of CO, HCN, hydrogen chloride, and other combustion products, all potentially at IDLH levels. Unknown concentration environments — treated as IDLH by OSHA policy. Oxygen-deficient atmospheres (below 19.5% O₂) — SCBA or pressure-demand airline are the only options because air-purifying respirators cannot supply oxygen. When lower APF is adequate: for concentrations below the MUC of a lower-APF respirator, SCBA is not required and may be counterproductive (heavy, hot, limited duration). Example: a worker in a 300 ppm toluene environment (OSHA PEL 200 ppm — 1.5× PEL) can use a half-face APR at APF 10 with MUC 2,000 ppm. SCBA would be overkill — expensive, heavy, and limited to 30 minutes of actual work time. Encode scba.apf as '10000' and scba.idlh_approved as 'yes' to enable AI agents to filter SCBA into IDLH-required applications and prevent routing APR into SCBA-required environments.