{
  "cases": [
    {
      "set": "A",
      "DN": 100,
      "column": "liquid_insulated",
      "L_mm": 4900,
      "L1_mm": 3185.0,
      "L2_mm": 3675.0,
      "cell_limit": "longitudinal_bending_stress",
      "assumed_material": "carbon_steel",
      "assumed_wall": "STD_or_heavier",
      "assumed_temperature_C": 200,
      "assumed_support_count": 4,
      "assumed_proposed_L1_mm": 3000,
      "assumed_proposed_L2_mm": 3500,
      "L1_below_lookup": true,
      "L2_below_lookup": true,
      "assumed_slope_mm_per_m": 1.0,
      "additional_drainage_check_required": true,
      "status": "hypothetical lookup comparison only"
    },
    {
      "set": "B",
      "DN": 100,
      "column": "liquid_insulated",
      "L_mm": 4000,
      "L1_mm": 2600.0,
      "L2_mm": 3000.0,
      "cell_limit": "longitudinal_bending_stress",
      "assumed_material": "austenitic_stainless",
      "assumed_wall": "10S",
      "assumed_temperature_C": 200,
      "assumed_support_count": 4,
      "assumed_proposed_L1_mm": 3000,
      "assumed_proposed_L2_mm": 3500,
      "L1_below_lookup": false,
      "L2_below_lookup": false,
      "assumed_slope_mm_per_m": 1.0,
      "additional_drainage_check_required": true,
      "status": "hypothetical lookup comparison only"
    }
  ],
  "equations": [
    "L1=.65*L",
    "L2=.75*L"
  ],
  "no_installation_acceptance": true
}