An introduction to classification of recycled vulcanizate particulate rubber used as a compounding material.
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What the result means
ASTM D5603 covers recycled vulcanizate rubber processed to obtain a desired particle size distribution. Many types are available because the source compounds differ.
Scope and limits
Keep the source material and particle size distribution with the classification. A recycled-rubber class is not a finished-part performance guarantee or proof of suitability for a specific application. This is buyer education, not a laboratory procedure.
Read the ASTM source: ASTM D5603-23