This document specifies requirements for polymer fibres for structural or non-structural use in concrete, mortar and grout. It covers fibres intended for use in all types of concrete and mortar, including sprayed concrete, flooring, precast, in-situ and repair concretes. Provisions governing the application of polymer fibres in the production of fibre reinforced concrete or mortar elements, i. e. requirements concerning fibre content, structural design, mixing, placing, etc. of concrete including polymer fibres are not part of this standard. NOTE Structural use of fibres is where the addition of fibres is designed to contribute to the load bearing capacity of a concrete or mortar element, see 3.18.