Standard Historical Last Updated: Jun 18, 2012
ASTM D4572-89(2005)

Standard Test Method for Rubber Chemicals-Wet Sieve Analysis of Sulfur

Standard Test Method for Rubber Chemicals-Wet Sieve Analysis of Sulfur
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Significance and Use

This test method is used to evaluate sulfur for suitability as a rubber vulcanizing agent. Sulfur particles must be significantly small enough to dissolve in rubber during cure and produce a uniform network of cross-links. This test method is used as a quality control method to ensure that no excessively large sulfur particles are present and to see if the product follows a typical pattern of size distribution.

This procedure is necessary when problems of the sulfur caking occur with the use of the dry sieving procedure for particle size.


1.1 This test method covers the evaluation of the particle size distribution of the coarse fraction of sulfur. It is limited to the measurement of those particles greater than 45 m (No. 325 sieve).

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.

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Book of Standards Volume: 09.01
Developed by Subcommittee: D11.20
Pages: 2
DOI: 10.1520/D4572-89R05
ICS Code: 83.060