{
  "schema": "c19-educational-methods-v1",
  "status": "Explicit hypothetical inputs and agent-checked arithmetic; not fitness-for-service, inspection-interval or assembly acceptance.",
  "loss_budget": {
    "assumed_local_wall_loss_budget_mm": 0.5,
    "assumed_constant_local_rate_mm_per_year": 10,
    "time_year": 0.05,
    "teaching_year_days": 365,
    "time_days": 18.25,
    "limitation": "Time to specified hypothetical loss budget only; critical defect geometry,requiredwall, uncertainty, detection/evaluation/action time not accepted."
  },
  "vibration_cycle_time": {
    "assumed_cycles": 1000000,
    "frequency_Hz": 5,
    "time_seconds": 200000,
    "time_hours": 55.55555555555556,
    "limitation": "Elapsed cycle count only; no stress, endurance or universal failure life."
  },
  "hose_elongation": {
    "length_unit": "m",
    "original_length": 10.0,
    "new_test_length": 10.2,
    "new_permanent_length": 10.05,
    "current_test_length": 10.55,
    "current_permanent_length": 10.12,
    "new_test_percent": 2.0,
    "new_permanent_percent": 0.5,
    "current_test_percent": 5.5,
    "current_permanent_percent": 1.2,
    "test_limit_percent": 6,
    "permanent_limit_percent": 4.5,
    "limit_rule": "max(new_percent+4,2*new_percent);4percentagepoints, not multiplication1.04.",
    "comparison_only": "Values below these limits do not accept other defects."
  },
  "hose_pressure": {
    "hypothetical_rated_psi": 275,
    "adopted_in_service_multiplier": 1.5,
    "arithmetic_test_psi": 412.5,
    "limitation": "Not substitute for separately specified manufacture/qualification or component pressure limits."
  }
}