• nc:SubstanceType (e.g. nc:Chemical)

• Nothing

Can be replaced with:

• nc:SubstanceFormText
      A physical state or form in which a substance appears.

• nc:Chemical (of nc:SubstanceType)
      A substance used in or produced by a chemical process.
• nc:Drug (of nc:DrugType)
      A legal or illegal substance that can be used as a medicine or a narcotic.
• j:DrugUseDrug (of nc:DrugType)
      A type of drug.
• j:ForensicSpecimen (of j:ForensicSpecimenType)
      A specimen collected for the purpose of analysis which may be of use as evidence in criminal, civil, judicial, or administrative proceedings.
• nc:HazardousMaterial (of nc:SubstanceType)
      A substance which can cause harm.
• it:HazardousMaterialData (of it:HazardousMaterialDataType)
      A data type providing details of a hazardous material.
• j:IncidentDrug (of nc:DrugType)
      A description of a drug associated with an incident.
• j:MedicalAssessmentRequiredMedication (of nc:DrugType)
      A medication that is required by a subject during medical assessment.
• hs:Medication (of nc:DrugType)
      A medication in use.
• j:Metal (of nc:SubstanceType)
      A metallic chemical element.
• j:PreciousMetal (of nc:SubstanceType)
      A rare metallic chemical element of high economic value, typically regarded as an investment and industrial commodity.
• nc:Substance (of nc:SubstanceType)
      A matter or substance of which something consists.
• em:TestSpecimen (of nc:SubstanceType)
      A sample used for medical testing.

• Nothing