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ASTM International - ASTM E1772-95(2001)

Standard Test Method for Particle Size Distribution of Chromatography Media by Electric Sensing Zone Technique (Withdrawn 2010)

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Organization: ASTM International
Publication Date: 10 November 1995
Status: inactive
Page Count: 3
ICS Code (Particle size analysis. Sieving): 19.120
significance And Use:

It is important to recognize that the results obtained by this test method or any other test method for particle size determination using different physical principles may disagree. The results... View More

scope:

1.1 This test method is valuable for the measurement of particle size and covers determination of the particle size distribution of chromatography media in the overall size range of approximately 1 to 450 μm using the electric sensing zone (ESZ) apparatus. This instrument uses an electric current path of small dimensions that is modulated by individual particle passage through an aperture and produces individual pulses of amplitude proportional to the particle volume (1).²

1.2 The values stated in SI units are to be regarded as the standard.

1.3 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

November 10, 1995
Standard Test Method for Particle Size Distribution of Chromatography Media by Electric Sensing Zone Technique
1.1 This test method is valuable for the measurement of particle size and covers determination of the particle size distribution of chromatography media in the overall size range of approximately 1...
ASTM E1772-95(2001)
November 10, 1995
Standard Test Method for Particle Size Distribution of Chromatography Media by Electric Sensing Zone Technique (Withdrawn 2010)
1.1 This test method is valuable for the measurement of particle size and covers determination of the particle size distribution of chromatography media in the overall size range of approximately 1...
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