This Technical Specification provides definitions for the categories of materials produced from end-of-life tyres based on their dimension(s) or impurities. It also provides test methods for the determination of the dimension(s) of the materials produced from all categories of end-of-life tyres at all steps of the treatment process as well as for the determination of impurities. The test methods described in this Technical Specification include sample collection and the preparation of a representative sample based on a sampling plan for the purpose of determining dimensions and impurities. This Technical Specification does not cover the operational performance or fitness for use of the materials which are deemed to be a function of agreement between the producer and the customer. NOTE This Technical Specification does not cover downstream products prepared from the materials, including reclaimed or devulcanized rubber, surface-modified powders and pyrolytic output. This Technical Specification does not purport to address safety concerns associated with its use. It is the responsibility of the user of this Technical Specification to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.