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Material chemical name---The chemical name of the material or its constituent material.

Characteristics--- A semicolon-delimited list of terms that describe specific attributes An attribute of the sample or and its constituents. The term for each characteristics [ ] attribute is written within brackets (for example, Characteristics [wall type], etc.). Nominal particle characteristics (or vendor supplied) should be included in the Material File as characteristics. Experimentally determined characteristics should be included in the Assay File.Characteristics value--- The value corresponding to a material characteristic name. For example, “single walled carbon nanotube” is the value of the characteristic name “wall type” for the material chemical name “carbon nanotube”.

Unit--- The standard of measurement used if the value for material characteristic value is quantitative and dimensional.

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