Retsch RT - Manual (Page 2)

SAMPLE SPLITTERS TYPE RT 6.6 - RT 75
Sample Splitters are used to halve bulk materials in the
field or in the laboratory.
Application / Feed Size
Depending on the mass percentage of the largest particle
diameter, the maximum feed size should be between 1/3
to 2/3 of the slot width of the dividing head.
Example: RT 75, Slot width:
75 mm
max. feed particle size: 25 mm – 50 mm
Scope of Delivery
The apparatus is supplied with 3 receptacles of equal volume,
2 of these serving to collect ( ① + ②), and 1 serving to
introduce ( ③) the sample into the splitter (please refer to the
illustration).
Loading of the Sample Material
Whilst loading the material care should be taken to ensure that
the sample is evenly spread over the entire width of the
receptacle and that it is evenly fed into the dividing head. The
dividing process is repeated until the required sample quantity
has been obtained.
Representative Samples
The aim of each sampling process is to obtain a representative, i.e. a sample fully corresponding
to the bulk material in ist quality. According to the particle distribution, care should also be taken
to extract a sufficient sample volume.
The final sample volume depends on the maximum particle diameter of the bulk material. It is
calculated from W = Weight of the sampled quantity (kg) and “d” = max. particle diameter (mm)
according to the equation “W = 0.06 х d".
Example:
max. particle diameter: 15 mm
Result: weigth of the sampled quantity: 0,9 kg
The sampled quantity must not be inferior to 900 g!