How to flag hazardous material

[natuk]

We need to be able to identify objects made of hazardous materials. This can be done using hazardous material as a category, or by including a separate note for which we would need to request a new AAT concept under categories of information.

[natuk]

Example of how this can be done combining the two approaches:

{
  "@context": "https://linked.art/ns/v1/linked-art.json", 
  "id": "https://linked.art/example/object/48", 
  "type": "HumanMadeObject", 
  "_label": "Film roll", 
  "made_of": [
    {
      "id": "http://vocab.getty.edu/aat/300429277", 
      "type": "Material", 
      "_label": "motion picture film",
      "classified_as": [
        {
          "id": "http://vocab.getty.edu/aat/300138222", 
          "type": "Type", 
          "_label": "hazardous material"
        }
      ]
    }
  ],
  "referred_to_by": [
    {
      "type": "LinguisticObject", 
      "classified_as": [
        {
          "id": "http://vocab.getty.edu/aat/???", 
          "type": "Type", 
          "_label": "Hazardous Material Statement", 
          "classified_as": [
            {
              "id": "http://vocab.getty.edu/aat/300418049", 
              "type": "Type", 
              "_label": "Brief Text"
            }
          ]
        }
      ], 
      "content": "Extremely flammable nitrocellulose."
    }
  ]
}

I suggest that the categorisation using aat:300138222 is required while the extra statement is optional.

[azaroth42]

2021-01-06: Ask for a Hazardous Material note type, with fallback to aat:300138222 if necessary. Noted that this is just flag and describe, not directly machine processable as to risk assessment or similar.

Move hazardous material up to be a Material, rather than a classification of a material to avoid all films being dangerous

[natuk]

Scope note and English label for new AAT term to describe notes about hazardous material:

Term: hazardous material description Scope note: A description of the risks, primarily to humans, which are associated with handling a work due to the nature of the materials that it is made of.

[natuk]

This needs to remain open until the proposed new AAT term has been approved. If it is not approved we need to remove the corresponding entry from vocab.py. Also track this: https://github.com/linked-art/crom/pull/15#issuecomment-802997857

[natuk]

New AAT concept not approved as it is a composite term. Proposal is to assign the AAT term to the material only and keep the note more generic.

[azaroth42]

https://www.getty.edu/vow/AATFullDisplay?find=&logic=AND&note=&subjectid=300138222

--> #186 as this is just vocabulary now.