API Std 537:2017

API Std 537 Third Edition PDF

This 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 vapor-depressurizing systems for petroleum, petrochemical, and natural gas industries.

Although this standard is primarily intended for new flares and related equipment, it is also possible to use it to evaluate existing flare facilities.