What is the procedure for agitating DCP powder in a fixed fire-fighting system?

flowchart TD
    A[Visually inspect components] --> B[Verify pressure regulators in order and calibrated]
    B --> C[Agitate powder with nitrogen per maker's instructions]
    C --> D[Nitrogen must be moisture-free]

• Inspection: Visually inspect all accessible components of the fixed DCP system
• Pressure regulators: Verify proper order and calibration
• Agitation method: Use moisture-free nitrogen per manufacturer’s instructions
• Governing instrument: MSC.1/Circ.1432 annex 2 §7.9
• Classification society reference: IACS Unified Interpretation GC31
• SMS requirement: ISM Code documented procedures for DCP maintenance
• Maker’s manual: Specifies method, pressure, and duration for agitation
• Officer’s role: Follow manufacturer’s procedure, confirm nitrogen quality, complete pre-checks, maintain records