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ASTM-D1921:2006 Edition

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D1921-06e1 Standard Test Methods for Particle Size (Sieve Analysis) of Plastic Materials

Published By Publication Date Number of Pages
ASTM 2006 5
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1.1 These test methods cover the measurement of the particle size of plastic materials in the powdered, granular, or pelleted forms in which they are commonly supplied. As these test methods utilize dry sieving, the lower limit of measurement is considered to be about 38 ? m (No. 400 sieve). For smaller particle sizes, sedimentation test methods are recommended.

1.2 Two test methods are described:

1.2.1 Test Method A This test method uses multiple sieves selected to span the particle size of the material. This method is used to determine the mean particle diameter and particle size distribution.

1.2.2 Test Method B This test method is an abbreviated version of Test Method A conducted with a few specific sieves. This test method determines percent passing or percent retained on a given sieve. Test Method B is applicable to materials which do not have a normal particle size distribution such as pellets and cubes.

1.3 The values stated in SI units shall be considered standard for dimensions of the wire cloth openings and the diameter of the wires used in the wire cloth. The values stated in inch-pound units shall be considered standard with regard to the sieve frames.

1.4 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.

Note 1There is no technically equivalent ISO standard.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Summary of Test Methods
Significance and Use
Interferences
2 Apparatus
Reagents and Materials
Hazards
Sampling
Preparation of Apparatus
Conditioning
Procedure
Analysis of Particle Distribution
3 TABLE 1
4 Report
Procedure
Report
Precision and Bias
TABLE 2
5 TABLE 3
ASTM-D1921
$40.63