This document describes the minimum procedures for the sampling of performance infills used within synthetic turf surfaces to verify compliance with toxicology, environmental and performance regulations and standards. Four sampling procedures are specified: Method 1 is intended based on taking samples during production of the infill material. Method 2 describes how to take samples from big bags. Method 3 describes how to take samples from small bags. Method 4 describes a procedure for taking samples from a synthetic turf (e.g. sports, recreational or landscaping surface). The procedures described are suitable for all forms of infill.