ASTM D7486-22
Standard Test Method for Measurement of Fines and Dust Particles on Plastic Pellets by Wet Analysis

Standard No.

ASTM D7486-22

Release Date

2022

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D7486-22

Scope

1.1 This test method measures the amount of fine particles adhered on plastic pellets or granules in which they are commonly produced and supplied. The lower limit of this test method is restricted only by the porosity of the filter disc used to capture the particle size being quantified. 1.2 The wet analysis technique allows for separation and collection of statically charged particles by liquid wash and filtration methods. This must be performed under standard laboratory conditions. 1.3 The values stated in SI units are to be regarded as standard. 1.4 This test method describes an essential practice to check the quality of plastics once the production cycle is terminated and to evaluate the performance of pellet cleaning systems or of the special pneumatic conveying systems for the distinct size fractions below 500 micron only. 1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. NOTE 1—There is no known ISO equivalent to this standard. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D7486-22 Referenced Document

• ASTM D1921 Standard Test Methods for Particle Size (Sieve Analysis) of Plastic Materials
• ASTM D883 Standard Terminology Relating to Plastics*， 2024-02-01 Update
• ASTM E11 Standard Specification for Wire Cloth and Sieves for Testing Purposes
• ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

ASTM D7486-22 history

• 2022 ASTM D7486-22 Standard Test Method for Measurement of Fines and Dust Particles on Plastic Pellets by Wet Analysis
• 2014 ASTM D7486-14 Standard Test Method for Measurement of Fines and Dust Particles on Plastic Pellets by Wet Analysis
• 2008 ASTM D7486-08(2013)e1 Standard Test Method for Measurement of Fines and Dust Particles on Plastic Pellets by Wet Analysis
• 2008 ASTM D7486-08 Standard Test Method for Measurement of Fines and Dust Particles on Plastic Pellets by Wet Analysis