This European Standard provides general definitions for sample collection and preparation of a representative sample based on a sampling plan for the purpose of determining dimensions and impurities. This Standard does not cover the operational performance or fitness for use of the materials which are deemed to be a function of agreements between the manufacturer and the customer. This Standard does not purport to address all of the safety concerns, if any, associated with its use. This Standard does not establish appropriate safety and health practices and does not determine the applicability of regulatory limitations prior to use.