Metals
1. Metal chemistry
ID and name: OM1 material_metal_chemistry
Provided by: data provider
Obligation: mandatory
Occurrences: 1–n
Definition: Chemical composition of the metal.
with the two subproperties:
1.1 Chemical composition
ID and name: OM1.1 material_metal_chemistry
Provided by: data provider
Obligation: mandatory
Occurrences: 1–n
Definition: The chemical composition of the metal with additional information.
with the eight subproperties:
1.1.1 Analytical method
ID and name: B4.1 chemistry_method
Provided by: data provider
Obligation: mandatory
Occurrences: 1
Definition: The method used to determine the chemical composition.
Allowed values and other constraints: controlled vocabulary
1.1.2 Analysed compound
ID and name: B4.2 chemistry_compound
Provided by: data provider
Obligation: mandatory
Occurrences: 1–n
Definition: The analysed chemical compound (chemical element or oxide).
Allowed values and other constraints: controlled vocabulary, not available if a mass spectrometric-method is recorded in B4.1 Analytical method.
1.1.3 Analysed isotope
ID and name: B4.3 chemistry_icp_isotope
Provided by: data provider
Obligation: mandatory
Occurrences: 1–n
Definition: The isotope used for quantification of a chemical element.
Allowed values and other constraints: controlled vocabulary, only available if a mass spectrometric-method is recorded in B4.1 Analytical method.
1.1.4 Value
ID and name: B4.4 chemistry_value
Provided by: data provider
Obligation: mandatory
Occurrences: 1–n
Definition: The concentration of the analysed chemical compound.
Allowed values and other constraints: decimal number
Example: 15.3
1.1.5 Unit
ID and name: B4.5 chemistry_unit
Provided by: data provider
Obligation: mandatory
Occurrences: 1–n
Definition: The unit in which the concentration of the analysed chemical compound is given.
Allowed values and other constraints: controlled vocabulary
1.1.6 Uncertainty type
ID and name: B4.6 chemistry_uncertainty_type
Provided by: data provider
Obligation: recommended
Occurrences: 0–n
Definition: The type of analytical uncertainty.
Allowed values and other constraints: controlled vocabulary
1.1.7 Confidence level
ID and name: B4.7 chemistry_uncertainty_sigma
Provided by: data provider
Obligation: recommended
Occurrences: 0–n
Definition: Sigma value of the reported absolute analytical uncertainty.
Allowed values and other constraints: 1, 2, 3
Example: 2
1.1.8 Uncertainty value
ID and name: B4.8 chemistry_uncertainty_value
Provided by: data provider
Obligation: recommended
Occurrences: 0–n
Definition: Value of the absolute analytical uncertainty.
Allowed values and other constraints: decimal number
Example: 0.3
1.2 Major elements
ID and name: OM1.2 material_metal_chemistry_major
Provided by: TerraLID system
Obligation: mandatory
Occurrences: 1–n
Definition: Major chemical elements (>1 wt%) in the metal, inferred from the chemical composition.
Allowed values and other constraints: controlled vocabulary
2. Metal corrosion
ID and name: OM2 material_metal_corrosion
Provided by: data provider
Obligation: mandatory
Occurrences: 1
Definition: Information about the corrosion of the metal.
with the two subproperties:
3. Extent
ID and name: OM2.1 material_metal_corrosion_extent
Provided by: data provider
Obligation: mandatory
Occurrences: 1
Definition: The extent of corrosion affecting the metal.
Allowed values and other constraints: controlled vocabulary
4. Details
ID and name: OM2.2 material_metal_corrosion_reason
Provided by: data provider
Obligation: recommended
Occurrences: 0–1
Definition: Indicators and observations for corrosion.
Allowed values and other constraints: free text
Example: thick green crust with sediment
5. Provenance indicators
ID and name: OM3 material_metal_provenance
Provided by: data provider
Obligation: recommended
Occurrences: 0–1
Definition: Information about provenance if known from other sources (e.g. stamps).
Allowed values and other constraints: free text
Example: Moulded inscription: Imp(eratoris) Caes(aris) Hadriani Aug(usti) met(alli) Lut(udarensis)