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ASTM International - ASTM D6940-03

Standard Practice for Measuring Sifting Segregation Tendencies of Bulk Solids

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Organization: ASTM International
Publication Date: 10 July 2003
Status: inactive
Page Count: 5
ICS Code (Particle size analysis. Sieving): 19.120
scope:

1.1 This practice covers an apparatus and procedure for simulating the segregation tendencies of bulk solids by means of the sifting mechanism.

1.2 Temperature- and humidity-sensitive bulk solids may need to be tested at different temperatures and moisture contents, as would happen in an industrial environment.

1.3 The maximum particle size should be limited to 3 mm, to reduce the likelihood of binding the slide gate.

1.4 This standard is not applicable to all bulk solids and segregation mechanisms: while sifting is a common segregation mechanism experienced by many bulk solids, other segregation mechanisms not evaluated by this standard might induce segregation in practice.

1.5 The extent to which segregation will occur in an industrial situation is not only a function of the bulk solid and its tendency to segregate, but also the handling equipment (for example, bin design), process (for example, transfer rates), and environment.

1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Document History

June 1, 2018
Standard Practice for Measuring Sifting Segregation Tendencies of Bulk Solids
5.1 Sifting segregation can cause horizontal segregation (for example, center-to-periphery) within bins used to hold and transport bulk solids. This can affect final product quality or subsequent...
July 1, 2010
Standard Practice for Measuring Sifting Segregation Tendencies of Bulk Solids
Sifting segregation can cause horizontal segregation (for example, center-to-periphery) within bins used to hold and transport bulk solids. This can affect final product quality in industrial...
January 1, 2004
Standard Practice for Measuring Sifting Segregation Tendencies of Bulk Solids
1.1 This practice covers an apparatus and procedure for simulating the segregation tendencies of bulk solids by means of the sifting mechanism. 1.2 Temperature- and humidity-sensitive bulk solids may...
ASTM D6940-03
July 10, 2003
Standard Practice for Measuring Sifting Segregation Tendencies of Bulk Solids
1.1 This practice covers an apparatus and procedure for simulating the segregation tendencies of bulk solids by means of the sifting mechanism. 1.2 Temperature- and humidity-sensitive bulk solids may...
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