Retsch RT User Manual

OPERATING MAN U A L – SAMPLE SPL I T TERS TYPE RT

Retsch GmbH 42759 Haan Retsch-Allee 1-5 Haan Germany 2/8/2012 0002

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!