{
  "title": "Material and equipment boundary determine the cleaning route",
  "scope": "Representative bounded method families. Select complete applicable instructions; these rows do not authorize a route for every installation. Final machinery oil flushing is separate from chemical/detergent cleaning.",
  "columns": [
    "Bounded route",
    "Required condition or stage sequence",
    "Interface that controls the choice"
  ],
  "rows": [
    [
      "Ferritic machinery-piping chemical route",
      "Flush, degrease, pickle, passivate, dry and protect against rust",
      "Chemical compatibility and stage observations; bearings/seals excluded; later oil flushing separate"
    ],
    [
      "Austenitic machinery-piping detergent route",
      "Remove dirt/grease by degreasing and flushing",
      "Compatible water/solution and included components; ferritic pickling is not automatically required"
    ],
    [
      "Carbon-steel lube/seal-oil schedule",
      "Selected debris/oil/scale/protection duties; water flush, alkaline wash, acid/chelant, passivation and protection",
      "Bare-metal/protection duties remain conditional where specified by that schedule"
    ],
    [
      "Stainless lube/seal-oil schedule, including duplex where stated",
      "Selected debris/oil duties; clean construction, mechanical and compatible solvent cleaning",
      "This schedule's scope differs from the austenitic detergent route; hydrochloric acid excluded"
    ],
    [
      "Centrifugal/axial-compressor suction schedule",
      "Selected debris/oil duties and mechanical cleaning; compatible inhibitor/oil protection or a nitrogen blanket under this route",
      "Wholly stainless systems are excepted from those preservation measures; temporarily disconnected joints still require blinds, plugs or caps"
    ],
    [
      "Reciprocating/rotary-compressor suction/interstage schedule",
      "Listed clean-construction/mechanical or chemical sequences, including connected vessels, exchangers and pulsation devices",
      "Specific suction chemical-cleaning duty and material exclusions must remain in the selected instructions"
    ]
  ],
  "conditions": [
    "A–D internal-condition duties belong to their selected schedule; not universal material cleanliness classes.",
    "A broad matrix alternative does not silently override a specific compressor-suction chemical duty.",
    "Chemical compatibility includes all valve trim, gaskets, instruments and other included items, not only base pipe.",
    "Chemical circuit excludes bearings and seals; later oil-flush final path can differ under its own instructions.",
    "Stainless schedule includes duplex only where stated; hydrochloric acid is excluded from that route.",
    "In this centrifugal/axial-compressor suction preservation route, the specified inhibitor/rust-preventive measure or a nitrogen blanket are alternatives. The lubricant-based measure excludes non-lubricated and refrigeration compressors.",
    "Systems constructed entirely of stainless steel are excepted from those preservation measures in this route; disconnected joints still require contamination closure by blinds, plugs or caps. This is not a universal stainless preservation exemption."
  ]
}