all refractive prescription

Roy M. Allen has written:

'Practical refractometry by means of the microscope'

The concenrtation is determined using the chemical analysis of the solute concentration; methods as densimetry, refractometry can sometimes by used.

Röntgen rays, actinism, cathode rays,encephalogram, fluoroscope, radioactivity,radiograph, refractometry,

A refractometer is a laboratory or field device for the measurement of an index of .... Automatic refractometers do not only measure the refractive index, but offer a lot of ... Refractometers and refractometry explains how refractometers work.