本标准规定了固定式工业局部排气通风（LEV）系统的调试、设计、规范、施工和安装的最低要求，该系统用于减少和防止员工在工业环境中接触有害的空气传播物质。

This standard establishes minimum requirements for the commissioning, design, specification, construction and installation of fixed industrial local exhaust ventilation (LEV) systems used for the reduction and prevention of employee exposure to harmful airborne substances in the industrial environment.