This standard specifies the safety requirements and measures for machinery covering design, construction, production, transport, installation, operation, maintenance and putting out of service. This standard applies to machinery using thermal cutting and or marking processes such as oxy-fuel, plasma arc. This standard applies to machinery the basis of which is either designed as open gantry, cantilever machine or the track of which is incorporated in the cutting table. This document does not cover design standards for specific tools, e.g. oxy-fuel hose standards, electrical requirements for plasma power supplies. Most tools used on thermal cutting machines have specific design standards. This standard does not cover hand-held cutting equipment and cutting equipment which is combined with a constrained tracking system mounted on the work piece. Risks arising from thermal cutting tools may be covered by related standards. Risks arising from laser radiation, except those caused by position indicating lasers, are not covered by this standard. Those risks are covered by ISO 11553. Machines that combine thermal processes with other processes (e.g. grinding, drilling, milling) are only partly covered. Risks arising from these other processes may be covered by related standards.