In gemology / gemmology, the gemstone refractometer is one the fundamental pieces of equipment used in a gemological laboratory.
22.
Differential refractometers contain a flow cell with two parts : one for the sample and one for the reference solvent.
23.
"This is the second year in a row I thought my refractometer was wrong, " says Belair.
24.
In the late 1990s, Abbe refractometers became available with the capability of measurements at wavelengths other than the standard 589 nanometers.
25.
As with the hydrometer, it is possible to use these tables to calibrate a refractometer so that it reads directly in �Bx.
26.
Light traveling through the sample is either passed through to the reticle or Abbe's refractometer, Pulfrich refractometer, Immersion refractometer.
27.
Light traveling through the sample is either passed through to the reticle or Abbe's refractometer, Pulfrich refractometer, Immersion refractometer.
28.
Light traveling through the sample is either passed through to the reticle or Abbe's refractometer, Pulfrich refractometer, Immersion refractometer.
29.
There are four main types of fluid refractometers : traditional handheld refractometers, digital handheld refractometers, Abbe refractometers, and inline process refractometers.
30.
There are four main types of fluid refractometers : traditional handheld refractometers, digital handheld refractometers, Abbe refractometers, and inline process refractometers.
