Color Measurement - Hach LANGE LICO 500 User Manual

5.5 Color measurement

Proper sample preparation is extremely important for accurate color
measurement. To make sure an accurate measurement is taken,
refer to the following sample preparation guidelines:
• Always clean the glass cuvettes/sample cells immediately after
use.
• Only use optically preferred samples for measurement. Make
sure the cuvette/sample cell are clean and show no signs of
opaqueness.
• Slowly fill the liquid into the cuvette/sample cell to prevent air
bubbles in the sample.
• Refer to section 5.4 on page 40
preparation information.
The Color Measurement mode is used to determine absolute color
values in the Hazen, Gardner, CIE Lab or European
Pharmacopoeia ranges.
The LICO 500 uses an independent calibration data set for each
type of cuvette/sample cell size (11 mm round vial and 50 mm
rectangular cells).
It is possible to calibrate the instrument with one, two or three types
of cuvettes/sample cells and to use these different cuvette/sample
cell types in parallel.
For the use of the 10 mm square cuvette/sample cell and 11 mm
round vials it is necessary to insert the adapter Z into the cell
compartment #2. For measurements with 50 mm rectangular
cuvettes/sample cells please remove the adapter.
Standard Operations
for more sample and sampling
41