Retsch AS 450 control - Handbuch (Seite 30)

Working instructions
30
• also available in round or square perforated sheeting
Fig. 17: Test sieves
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6.2 Sieve accessories
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Suitable collecting pans, collecting pans with outlets, intermediate pans,
intermediate rings and sieve covers are available. The range of accessories is
rounded off by sieving aids and sieve stands.
Please refer to our price list for the precise order data for the test sieves and the
available accessories.
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6.3 Tested quality
– black on white
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6.3.1 RETSCH Certificates
Before delivery each sieve is gauged optically and provided with a works certificate
.
On request you will receive a log with the inspection certificate in which the
measuring results are documented in a table and graph or in a calibration
certificatewith more detailed statistics.
6.3.2 Calibration Service
As a special service we offer to recalibrate your test sieves, whereby after
conducting the measurements in accordance with standards, all the relevant
information is recorded and confirmed in the required certificate.
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7 Working instructions
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7.1 Sieving aids
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For goods that are difficult to separate, we recommend the additional use of
sieving aids in the individual sieve fractions. Depending on the aperture size of the
sieve and the preselected oscillation intensity, it is possible to use balls made of
agate, rubber, or porcelain or nylon brushes and Vulkollan® for this purpose.
See also the following table.e