Retsch AS 200 User Manual download pdf (Page 20)

31.07.2012  Retsch GmbH 20

Retsch analytical sieves are available in versions

complying with all the usual national and international

standards:

* Standards available:

DIN, ISO, ASTM, BS

* Available diameters:

100 mm / 150 mm / 200 mm / 203 mm (8")

* Available woven screens materials:

Woven wire screens made of stainless steel

Perforated plates made of stainless steel

Specifics will be found in the detailed brochure describing

the analytical sieves.

The stack required for sieve analysis is composed of

analytical sieves which are arranged one above the other,

with progressively larger holes toward the top, together

with the base pan.

Quantity of product to be sieved

To ensure fast separation and exact results, the quantity

of the product being examined should be matched to the

sieve diameter and the nominal size of the openings.

The specific standards for sieve analysis (e.g. DIN

22019, Part 1) provide guideline values in which the

following maximum charge quantities are

recommended:

Nominal widths of the

screen openings

Material quantity in dm

at 200 mm diameter

0.500

3.15

0.300

0.140

0.5

0.100

0.2

0.060

0.063

0.035

0.020

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Retsch AS 200 User Manual Page 20