Aspect AS74 exposure

 {
  "scales": [
    {
      "prefix": null,
      "root_scale": null,
      "unit": "UN234",
      "system_dimensions": null,
      "aspects": [
        "AS74"
      ],
      "conversions": [
        {
          "src_scale_id": "SC901",
          "dst_scale_id": "SC920",
          "aspect_id": "AS74"
        },
        {
          "src_scale_id": "SC901",
          "dst_scale_id": "SC921",
          "aspect_id": "AS74"
        }
      ],
      "casts": [],
      "id": "SC901",
      "ml_name": "ra_ip_R",
      "scale_type": "ratio",
      "is_systematic": null
    },
    {
      "prefix": null,
      "root_scale": null,
      "unit": "UN968",
      "system_dimensions": "DI47",
      "aspects": [
        "AS74"
      ],
      "conversions": [
        {
          "src_scale_id": "SC920",
          "dst_scale_id": "SC901",
          "aspect_id": "AS74"
        }
      ],
      "casts": [],
      "id": "SC920",
      "ml_name": "#N/A",
      "scale_type": "ratio",
      "is_systematic": null
    },
    {
      "prefix": null,
      "root_scale": null,
      "unit": "UN104",
      "system_dimensions": "DI47",
      "aspects": [
        "AS74"
      ],
      "conversions": [
        {
          "src_scale_id": "SC921",
          "dst_scale_id": "SC901",
          "aspect_id": "AS74"
        }
      ],
      "casts": [],
      "id": "SC921",
      "ml_name": "#N/A",
      "scale_type": "ratio",
      "is_systematic": null
    }
  ],
  "id": "AS74",
  "name": "exposure",
  "ml_name": "as_exposure",
  "symbol": null,
  "reference": null
}