本标准适用于气动隔膜泵和波纹管泵。气动泵是用于一般液体输送的容积式往复泵。它由外部来源的压缩气体（通常是空气）驱动。如果本文件中使用空气，则应将其视为任何压缩气体，但通常为空气。

This standard applies to air-operated diaphragm and bellows pumps. An air-operated pump is a positive-displacement reciprocating pump used for general liquid transfer. It is driven by means of a compressed gas (usually air) from an outside source. Where air is used throughout this document, it should be taken to mean any compressed gas, but usually air.