Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Processes and Techniques (hierarchy name)
4. [processes and techniques by specific type]
5. analysis and testing techniques

Narrower term/s

• spectrophotometry[+]
  • microspectrophotometry
• gamma ray spectrometry
• spectroradiometry

Anotations

Scope note:

Means of measuring wavelengths of the rays of a spectrum. To refer to the observance of how a substance transmits, emits, or responds to various wavelengths in the electromagnetic energy spectrum, use "spectroscopy." When the word is used in a bound compound term, it may form a synonym for spectroscopy, because the process of observing is not distinguished from the process of measuring; examples are "infrared spectrometry" and "infrared spectroscopy," which are considered synonyms.