1.1 This standard specifies the safety requirements for: - conveying machines; - spraying machines; - placing machines for concrete and mortar or their components. The machinery can be stationary or mobile. This standard covers the machines described in 3.3 to 3.7.This standard does not cover: - machines that are mobile during conveying, spraying and placing; - cabins for any machines covered by this standard. This standard does not concern the undercarriage of the truck and the engine(s) of the machines that are not driven by the main engine during conveying, spraying and placing. One other possibility is the combination with a truck mixer (see 3.3).This standard does not establish the additional requirements for operation subject to special rules (e. g. potentially explosive atmosphere, supply by electrical networks where voltage, frequency and tolerance differ from those of the public supply, if relevant due to e. g. electronic components, earthquake, lightning, using on public roads, hazards occurring during construction, transportation, commissioning, decommissioning, cableless remote controls other than radio controls, compressors and pressure vessels). 1.2 This standard deals with all significant hazards, hazardous situations and events relevant to conveying, spraying and placing machines when they are used as intended and under the conditions foreseen by the manu-facturer (see clause 4). This standard specifies the appropriate technical measures to eliminate or reduce risks arising from the significant hazards. 1.3 This document is not applicable to machines which are manufactured before the date of publication of this document by CEN.