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ASTM D6940-03

Historical Revision

Standard Practice for Measuring Sifting Segregation Tendencies of Bulk Solids

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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.


SDO ASTM: ASTM International
Document Number D6940
Publication Date July 10, 2003
Language en - English
Page Count 5
Revision Level 03
Supercedes
Committee D18.24
Publish Date Document Id Type View
June 1, 2018 D6940-18 Revision
July 1, 2010 D6940-10 Revision
Jan. 1, 2004 D6940-04 Revision
July 10, 2003 D6940-03 Revision