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  "docId": "SMPTE.RP153.1999",
  "document": {
    "abstract": "(1.1) This practice specifies the method and factors to be considered when measuring and reporting the comparative shutter efficiency (remaining useful light) of 35- and 70-mm projectors. (1.2) The purpose of this practice is to provide guidelines for the evaluation of projector shutter performance, either in an operating movie theater or in a test laboratory.",
    "abstract$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_rp-153-1999_1/rp0153-1999.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.838Z"
    },
    "approvalDate": "1999-11-05",
    "approvalDate$meta": {
      "confidence": "high",
      "note": "Cross-filled from Zoho standards export (_source/SMPTE/Zoho/SMPTE Standards Document Zoho Export 2026-05-21.json); Zoho is canonical for SMPTE standards metadata, registry value overwritten",
      "originalValue": "1999",
      "overridden": true,
      "source": "parsed",
      "updated": "2026-06-15T20:27:42.872Z",
      "version": "smpte-zoho-standards@v1"
    },
    "copyright": {
      "holder": "Society of Motion Picture and Television Engineers, Inc.",
      "holder$meta": {
        "confidence": "high",
        "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_rp-153-1999_1/rp0153-1999.xml)",
        "source": "parsed",
        "updated": "2026-05-12T21:55:08.838Z"
      },
      "year": "1999",
      "year$meta": {
        "confidence": "high",
        "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_rp-153-1999_1/rp0153-1999.xml)",
        "source": "parsed",
        "updated": "2026-05-12T21:55:08.838Z"
      }
    },
    "copyright$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_rp-153-1999_1/rp0153-1999.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.838Z"
    },
    "docId": "SMPTE.RP153.1999",
    "docId$meta": {
      "confidence": "high",
      "note": "Calculated from parsed/inferred metadata",
      "originalValue": null,
      "source": "manual",
      "sourceUrl": "https://pub.smpte.org/doc/rp153/19991105-pub/",
      "updated": "2025-10-30T00:00:00Z"
    },
    "docLabel": "SMPTE RP 153:1999",
    "docLabel$meta": {
      "confidence": "medium",
      "source": "manual",
      "updated": "2025-07-01T00:00:00Z"
    },
    "docNumber": "153",
    "docNumber$meta": {
      "confidence": "medium",
      "source": "manual",
      "updated": "2025-07-01T00:00:00Z"
    },
    "docTitle": "Method for Measuring 35- and 70-mm Shutter Efficiency",
    "docTitle$meta": {
      "confidence": "medium",
      "source": "manual",
      "updated": "2025-07-01T00:00:00Z"
    },
    "docType": "Recommended Practice",
    "docType$meta": {
      "confidence": "medium",
      "source": "manual",
      "updated": "2025-07-01T00:00:00Z"
    },
    "doi": "10.5594/SMPTE.RP153.1999",
    "doi$meta": {
      "confidence": "medium",
      "source": "manual",
      "updated": "2025-07-01T00:00:00Z"
    },
    "familyId": "153",
    "familyId$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_rp-153-1999_1/rp0153-1999.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.838Z"
    },
    "group": "smpte-27c-tc",
    "group$meta": {
      "confidence": "medium",
      "excludeChanges": true,
      "note": "TRIAGE: Committee history: 20f-tc absorbed into 27c-tc. Registry has the modern merged committee",
      "source": "manual",
      "updated": "2026-05-13T21:25:53.974Z"
    },
    "href": "https://doi.org/10.5594/SMPTE.RP153.1999",
    "href$meta": {
      "confidence": "medium",
      "source": "manual",
      "updated": "2025-07-01T00:00:00Z"
    },
    "icsCodes": [
      {
        "code": "37.060.01",
        "description": "Cinematography in general"
      },
      {
        "code": "37.060.10",
        "description": "Motion picture equipment"
      }
    ],
    "icsCodes$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_rp-153-1999_1/rp0153-1999.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.838Z"
    },
    "isbn": "978-1-61482-170-0",
    "isbn$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_rp-153-1999_1/rp0153-1999.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.838Z"
    },
    "keywords": [
      "Film",
      "Projection",
      "Test & Measurement",
      "Projector"
    ],
    "keywords$meta": {
      "confidence": "medium",
      "source": "manual",
      "updated": "2025-07-01T00:00:00Z"
    },
    "numberOfPages": "2",
    "numberOfPages$meta": {
      "confidence": "high",
      "note": "Cross-filled from Zoho standards export (_source/SMPTE/Zoho/SMPTE Standards Document Zoho Export 2026-05-21.json)",
      "source": "parsed",
      "updated": "2026-06-15T20:12:21.844Z",
      "version": "smpte-zoho-standards@v1"
    },
    "pages": "1–2",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_rp-153-1999_1/rp0153-1999.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.838Z"
    },
    "productNumber": "SSD001171",
    "productNumber$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_rp-153-1999_1/rp0153-1999.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.838Z"
    },
    "publicationDate": "1999-11-05",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from HTML pubDateTime meta tag",
      "originalValue": "1999-01-01",
      "overridden": true,
      "source": "parsed",
      "updated": "2025-10-12T05:19:41.121Z"
    },
    "publisher": "SMPTE",
    "publisher$meta": {
      "confidence": "medium",
      "source": "manual",
      "updated": "2025-07-01T00:00:00Z"
    },
    "publisherLocation": {
      "city": "White Plains, NY",
      "city$meta": {
        "confidence": "high",
        "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_rp-153-1999_1/rp0153-1999.xml)",
        "source": "parsed",
        "updated": "2026-05-12T21:55:08.838Z"
      },
      "country": "USA",
      "country$meta": {
        "confidence": "high",
        "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_rp-153-1999_1/rp0153-1999.xml)",
        "source": "parsed",
        "updated": "2026-05-12T21:55:08.838Z"
      }
    },
    "publisherLocation$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_rp-153-1999_1/rp0153-1999.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.838Z"
    },
    "references": {
      "normative": [
        "PIMA.IT7.231.1998"
      ],
      "normative$meta": {
        "confidence": "medium",
        "source": "manual",
        "updated": "2025-07-01T00:00:00Z"
      }
    },
    "releaseTag": "19991105-pub",
    "releaseTag$meta": {
      "confidence": "high",
      "note": "Release tag parsed from URL folder structure",
      "originalValue": null,
      "source": "parsed",
      "updated": "2025-10-12T05:19:41.121Z"
    },
    "resolvedHref": "https://pub.smpte.org/doc/rp153/19991105-pub/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": "https://my.smpte.org/s/product-details?id=a1BVR0000007NaU",
      "overridden": true,
      "source": "resolved",
      "updated": "2025-10-30T22:50:26.467Z",
      "version": "extractDocs.js@commit:ee2844fb1cf2"
    },
    "standardId": "20302",
    "standardId$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_rp-153-1999_1/rp0153-1999.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.838Z"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "medium",
        "source": "manual",
        "updated": "2025-07-01T00:00:00Z"
      },
      "amended": false,
      "amended$meta": {
        "confidence": "high",
        "note": "Parsed from wrapper #amendments",
        "originalValue": null,
        "source": "parsed",
        "updated": "2025-10-12T05:19:41.121Z"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Calculated from the releaseTag(s)",
        "originalValue": null,
        "source": "resolved",
        "updated": "2025-10-12T05:19:41.121Z"
      },
      "reaffirmDate": "2012-11-03",
      "reaffirmDate$meta": {
        "confidence": "medium",
        "source": "manual",
        "updated": "2025-07-01T00:00:00Z"
      },
      "reaffirmed": true,
      "reaffirmed$meta": {
        "confidence": "medium",
        "source": "manual",
        "updated": "2025-07-01T00:00:00Z"
      },
      "stabilized": true,
      "stabilized$meta": {
        "confidence": "medium",
        "source": "manual",
        "updated": "2025-07-01T00:00:00Z"
      },
      "stabilizedDate": "2012-11-03",
      "stabilizedDate$meta": {
        "confidence": "medium",
        "source": "manual",
        "updated": "2025-07-01T00:00:00Z"
      },
      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Calculated from the releaseTag(s)",
        "originalValue": null,
        "source": "resolved",
        "updated": "2025-10-12T05:19:41.121Z"
      }
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}