for analysing liquids, e.g. polluted water

Full Title

Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light > Systems in which incident light is modified in accordance with the properties of the material investigated > Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands > Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry > using infrared light > for analysing liquids, e.g. polluted water

Classification Context

Section:

PHYSICS

Class:

MEASURING; TESTING

Subclass:

INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES