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ASTM D 1921 : 2006 : EDT 1

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Methods for Particle Size (Sieve Analysis) of Plastic Materials
Available format(s)

Hardcopy , PDF

Superseded date

11-11-2014

Language(s)

English

Published date

04-01-2006

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 μm (No. 400 sieve). For smaller particle sizes, sedimentation test methods are recommended.

1.2 Two test methods are described:

1.2.1 Test Method AThis 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 BThis 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 1—There is no technically equivalent ISO standard.

Committee
D 20
DocumentType
Test Method
Pages
5
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM D 4020 : 2018 Standard Specification for Ultra-High-Molecular-Weight Polyethylene Molding and Extrusion Materials
ASTM D 5861 : 2007 : R2017 Standard Guide for Significance of Particle Size Measurements of Coating Powders
ASTM D 3218 : 2007 : R2018 Standard Specification for Polyolefin Monofilaments
ASTM D 7486 : 2014 Standard Test Method for Measurement of Fines and Dust Particles on Plastic Pellets by Wet Analysis
ASTM D 1755 : 2015 Standard Specification for Poly(Vinyl Chloride) Resins
ASTM E 1229 : 2016 Standard Specification for Calcium Hypochlorite
ASTM D 3451 : 2006 : R2017 Standard Guide for Testing Coating Powders and Powder Coatings

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