Retsch UR 2 - Manual (Page 15)

2/8/2012 Retsch GmbH
15
0002
Notes on operation
Target group: Operators
Cleaning
The ultrasonic bath gently and intensively cleans analysis sieves,
microprecision sieves, glass and metal parts, and metallographic and
geological samples, spectacles, jewellery, coins and many other objects.
The ultrasonic bath can also be used for processes other than cleaning.
Homogenising
The RETSCH ultrasonic bath is used in particle metrology for
preparation of suspension samples for wet sieving or sedimentation
analysis. For this purpose, the initial sample is to be placed in the
ultrasonic machine’s perforated basket in a separate vessel, e.g. a beaker
or plastic bottle. The ultrasonic waves break down particle clumps and
distribute the individual particles in the liquid. The addition of
dispersants to the suspension accelerates the process. See also DIN
66111.
Dispersing
Dispersing in the ultrasonic machine means ultra-fine distribution of
solids in liquid phases. This means improved quality for dispersions
and emulsions.
The Retsch ultrasonic cleaners can also be used in chromatography for
dispersion of the packing material in the slurry, so as to achieve
reproducible separations.
Our application laboratory will be pleased to answer any questions or
provide examples of further applications.