Making measurements Chapter 4
Mastersizer 3000 Page 4-29
To select a previously added material from the Materials Database, click Browse
database, then select an item from the database and click Use these values. See
the Help system for more on the Materials and Dispersants databases. Alterna-
tively, manually complete the fields detailed below.
Section/option Description
Material name Descriptive name for the material.
Refractive index Value of between 0 and 5. This value relates to the speed of
light within the material, which in turn allows the degree of
refraction (light bending) to be predicted when light passes
from one medium to another.
Absorption index Value between 0 and 10, which is a measure of the quantity
of light absorbed by the particles. Generally, transparent
samples will have a low or zero absorption while coloured or
black samples will have a higher value.
Density Value of between 0.001 and 25g/cm³.
Different blue-
light properties
(Wet dispersion
units only)
If required, select the check box and add the Refractive
index (blue-light) and Absorption index (blue-light). See
Help System for more information.
References and
notes
Any further comments that help to describe the material.
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