About This User Guide Purpose This User Guide and Video, Test and Classify the Source of Recycled Rubber, were developed to raise awareness about standards and testing in the design and development of recycled rubber products, new technologies and uses. Looking beyond the idea of just making a product, manufacturers are designing products that can be reusable. For example, the circular model includes designing waste out of the system and building economic, natural and social principles. Best Management Practices The following influence the success to developing a product, new technology or use: • Customer – products are customer driven • Tire-Derived Material (TDM) Feedstock Supplier • Tire-Derived Product (TDP) Manufacturer • Compounder • Specifier • Equipment – determines the quality and quantity of the feedstock required for a product and capability of the TDP Manufacturer to produce a product. • Testing Standards, Protocol, Testing Facility • Expected Timeline for Return on Investment The user guide and video support the importance of selecting the TDM supplier that can successfully provide consistent quality and quantity of feedstock material for a product. The Classification of recycled rubber is based on the source of rubber as identified in ASTM Designation D5603-19 Standard Classification for rubber compounding and is important in the design and development of new products, technologies and uses. The vibratory shaker system exemplifies one type of equipment that is use to determine the particle size distribution using ASTM Designation D5644-18 Standard Test Method. ASTM Designation D8268-19 Standard Practice identifies quality control practices for rubber compounding materials. Appendices Appendix A - Glossary of Terms and Acronyms Appendix B - Guidelines and Test Methods Acknowledgement The California Department of Resources Recycling and Recovery (CalRecycle) and DKE Enterprises, Inc. (dba DK Enterprises), contractor to the Feedstock Conversion Technical Assistance and Material Testing Services Contract, would like to thank all of the firms and individuals that have contributed information, time and resources in the production of the video tutorial and user guide.
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