This International Standard specifies requirements and provides guidance for the selection, design,
specification, operation and maintenance of flares and related combustion and mechanical components used
in pressure-relieving and vapour-depressurizing systems for petroleum, petrochemical and natural gas
industries.
Although this International Standard is primarily intended for new flares and related equipment, it is also
possible to use it to evaluate existing flare facilities.
Annexes A, B and C provide further guidance and best practices for the selection, specification and
mechanical details for flares and on the design, operation and maintenance of flare combustion and related
equipment.
Annex D explains how to use the data sheets provided in Annex E; it is intended that these data sheets be
used to communicate and record design information.