This document specifies a method of obtaining a representative samples from a lot of paper and board for recycling for testing to determine whether or not its composition and/or quality complies with the requirements of EN 643 and or other specifications. It defines the sampling procedures which apply when sampling is carried out to resolve compliance issues and commercial disputes between buyer and seller relating to a lot of paper and board for recycling, at any point in the value chain, where those procedures are not defined in the contract between buyer and seller. This document is not specifically intended for routine monitoring of processes or quality, but the procedures described may be used to form the basis of an agreement between supplier and buyer. This document is not applicable if the material is not intended for recycling. The method is unsuitable for determining the variability within a lot.