{
  "title": "Fiber and filament data for AI package and measurement review",
  "source_page": "https://fiund.com/industries/filament-package-linear-density-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "Comparable mass only after length normalization",
    "context": "A fictional winding ledger identifies two samples with different lengths. Values are invented.",
    "records": [
      [
        "1",
        "Winding ledger",
        "Sample A from package Q1, sample B from Q2."
      ],
      [
        "2",
        "Lab worksheet",
        "A: 6 g over 200 m. B: 8 g over 400 m."
      ],
      [
        "3",
        "Comparison card",
        "Use grams per 1,000 m; no grading limits supplied."
      ]
    ],
    "question": "Which package sample has the higher normalized value?",
    "answer": "A is 30 g per 1,000 m (6 × 1,000 ÷ 200), and B is 20 g per 1,000 m (8 × 1,000 ÷ 400). Thus A's sampled filament is higher on the basis in record 3, despite B's larger raw mass.",
    "failureModes": [
      "Ranking by sample mass alone",
      "Treating a measured sample as a grade determination for the package"
    ],
    "fields": [
      [
        "sample_length_m",
        "Provides the normalization denominator"
      ],
      [
        "package_id",
        "Maintains provenance of each piece"
      ],
      [
        "normalized_unit",
        "Keeps comparisons on the stated length basis"
      ]
    ],
    "holdout": "Use one sample length in kilometers and one in meters; require conversion before computing either value.",
    "boundary": "No polymer formulations, production settings, grades or customer limits."
  }
}