ISO 7005-1:2011为适用于一般用途和工业应用的管道法兰制定了基本规范，包括但不限于化学加工工业、发电工业、石油和天然气工业。由买方负责选择法兰系列。 适用于处理或处理各种流体的设施内的法兰，包括蒸汽、加压水和化学品、石油、天然气或相关产品。 ISO 7005-1:2011也适用于成套设备管道，该管道将成套设备组件内的单个设备件或设备级互连，以用于处理或处理各种流体的设施，包括蒸汽和化学品、石油、天然气或相关产品。

ISO 7005-1:2011 establishes a base specification for pipe flanges suitable for general purpose and industrial applications including, but not limited to, chemical process industries, electric power generating industries, petroleum and natural gas industries. It places responsibility for the selection of a flange series with the purchaser. It is applicable to flanges within facilities engaged in the processing or handling of a wide variety of fluids, including steam, pressurized water and chemical, petroleum, natural gas or related products. ISO 7005-1:2011 is also applicable to packaged equipment piping, which interconnects individual pieces or stages of equipment within a packaged equipment assembly for use within facilities engaged in the processing or handling of a variety of fluids, including steam and chemical, petroleum, natural gas or related products.