Making Sieve Selection Clear and Simple

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Sieving is the most widely used technique for determining particle size distribution. The specification of sieve characteristics is shrouded in mystery. This announces a paper that demystifies the sieve definition part of particle size analysis.

Sieving in its most elemental definition is the separation of fine material from coarse material by means of a meshed or perforated surface. The technique was used as far back as the early Egyptian days as a way to size grains. In order to understand sieving today, it is essential to examine the definition of a test sieves, limitations of    the test sieve procedure, test sieve standards, sieve certifications, and sieve calibration.

Although the technique has been around since antiquity confusion surrounds the specification of standards, certification and calibration. CSC Scientific is offering a paper that will help most specifiers get the best balance of precision and operational economy by understanding the vagaries of the several certification types and the performance that can be expected.

The paper covers the limitations of sieve testing, the official standards and the certification types. Quality control considerations involving the calibration of sieves to determine unacceptable wear and damage are identified for the most widely used methods.

The paper helps new and experienced sieve users understand the issues that determine the best    practices for individual particle size testing operations. It is a reference for the most misunderstood areas of sieve analysis.

The paper is available at http://www.cscscientific.com/html/sieve_std_cert_cal.html. It is also available in the October 2008 issue of "Powder/Bulk Solids" magazine.

CSC Scientific specializes in the production and distribution of equipment for particle size, moisture and surface tension analysis.
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